Why is "Mixing up energy units (kWh, GJ, Mtoe, EJ)" a common mistake in Changes in energy demand and production?

Why it happens: Many units in use. How to avoid it: Memorise key reference points: world uses ~600 EJ/yr (~14 000 Mtoe); HIC per-capita ~80-200 GJ; LIC <10 GJ. Don't worry about exact conversions — focus on the RELATIVE comparisons. Source: Pearson 4GE1 Examiner Reports — Topic 4

Why is "Treating energy as just fossil fuels" a common mistake in Changes in energy demand and production?

Why it happens: Fossil fuels dominate the mix. How to avoid it: The energy mix is FOUR major categories: (1) fossil fuels (oil 31%, coal 27%, gas 24% = ~80% total); (2) renewables (hydro 7%, wind 3%, solar 2%, bio 1% = ~13%); (3) nuclear (~4%); (4) traditional biomass. Mention all when discussing global energy.

Why is "Generic answers without country/figure" a common mistake in Changes in energy demand and production?

Why it happens: Easier than memorising. How to avoid it: ALWAYS quote: China ~30% global energy; India ~25% of growth to 2050; USA per-capita ~80 GJ; Africa <5% of global use. Pearson 4GE1 mark schemes reward located + quantified detail.

Why is "Treating China only as a coal user" a common mistake in Changes in energy demand and production?

Why it happens: China does use ~50% of global coal. How to avoid it: Also note China is WORLD'S LARGEST INSTALLER OF RENEWABLES — 290 GW solar in 2023 alone; makes ~80% of global solar panels; ~75% of EV batteries. China is BOTH the largest fossil + largest renewable player.

Why is "Treating all emerging economies as the same" a common mistake in Changes in energy demand and production?

Why it happens: Grouping by 'developing'. How to avoid it: China is now huge (~30% global energy) + 'middle-income'. India still per-capita poor (~25 GJ) but huge total. Sub-Saharan Africa still very low total (<5%) + per-capita (~5 GJ). Each has distinct trajectory.

Why is "Over-claiming HIC decoupling" a common mistake in Changes in energy demand and production?

Why it happens: UK / EU statistics look impressive. How to avoid it: Acknowledge that PRODUCTION-side decoupling is partly accounting — energy + emissions have moved to China via offshoring. CONSUMPTION-side decoupling is smaller. Top answers distinguish these.

Edexcel IGCSE Geography (4GE1)

Changes in energy demand and production

Q: Why is "Treating energy as just fossil fuels" a common mistake in Changes in energy demand and production?

Why it happens: Fossil fuels dominate the mix. How to avoid it: The energy mix is FOUR major categories: (1) fossil fuels (oil 31%, coal 27%, gas 24% = ~80% total); (2) renewables (hydro 7%, wind 3%, solar 2%, bio 1% = ~13%); (3) nuclear (~4%); (4) traditional biomass. Mention all when discussing global energy.

Q: Why is "Generic answers without country/figure" a common mistake in Changes in energy demand and production?

Why it happens: Easier than memorising. How to avoid it: ALWAYS quote: China ~30% global energy; India ~25% of growth to 2050; USA per-capita ~80 GJ; Africa <5% of global use. Pearson 4GE1 mark schemes reward located + quantified detail.

Q: Why is "Treating China only as a coal user" a common mistake in Changes in energy demand and production?

Why it happens: China does use ~50% of global coal. How to avoid it: Also note China is WORLD'S LARGEST INSTALLER OF RENEWABLES — 290 GW solar in 2023 alone; makes ~80% of global solar panels; ~75% of EV batteries. China is BOTH the largest fossil + largest renewable player.

Q: Why is "Treating all emerging economies as the same" a common mistake in Changes in energy demand and production?

Why it happens: Grouping by 'developing'. How to avoid it: China is now huge (~30% global energy) + 'middle-income'. India still per-capita poor (~25 GJ) but huge total. Sub-Saharan Africa still very low total (<5%) + per-capita (~5 GJ). Each has distinct trajectory.

Q: Why is "Over-claiming HIC decoupling" a common mistake in Changes in energy demand and production?

Why it happens: UK / EU statistics look impressive. How to avoid it: Acknowledge that PRODUCTION-side decoupling is partly accounting — energy + emissions have moved to China via offshoring. CONSUMPTION-side decoupling is smaller. Top answers distinguish these.

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Detailed Study Notes

Detailed notes on Economic activity and energy for Edexcel IGCSE Geography, covering key concepts, explanations, examples, and exam-focused revision points.

Changes in Global Energy Demand & Production — Pearson Edexcel IGCSE Geography (4GE1) Study Notes

Spec 4.4a. Global energy use ~600 EJ/year (~14 000 Mtoe), growing ~1-2%/year. HIC per-capita demand is stable / declining (efficiency, offshoring, saturation); China ~30% of global use (vs ~10% in 2000); India fastest-growing major economy; Africa <5% of global use despite ~17% of population. Per-capita gulf: USA ~80 GJ/yr vs Ethiopia <5 GJ/yr (~16× gap). Mix: fossil ~80% (coal 27%, oil 31%, gas 24%); renewables ~13%; nuclear ~4%. IEA + BP Statistical Review are the authoritative data sources.

At a glance

Global energy use: ~600 EJ/yr (~14 000 Mtoe), growing ~1-2%/yr.
Drivers of growth: population + economic growth + urbanisation + industrialisation + AC + EVs + data.
HIC trend: per-capita demand stable / declining (efficiency, offshoring, saturation).
China: ~30% of global energy (vs 10% in 2000) — world's largest single consumer.
India: fastest-growing major economy; IEA projects ~25% of demand growth 2024-50.
Africa: <5% of global use despite ~17% of population; ~600m without electricity.
Per-capita gulf: USA ~80 GJ, China ~110, Germany ~140, Russia ~200, India ~25, Ethiopia <5.
Energy mix: fossils ~80% (oil 31%, coal 27%, gas 24%); renewables ~13%; nuclear ~4%.
Authorities: IEA (World Energy Outlook) + BP Statistical Review.

What you’ll learn

Mapped to the Edexcel IGCSE 4GE1 syllabus (2026 onwards).

State + describe current global energy consumption + growth rates.
Compare per-capita energy use across HICs / emerging / LICs with specific figures.
Explain WHY HIC demand is stable / declining + emerging-economy demand is rising.
Use China + India as case studies of changing energy patterns.
Explain the role of urbanisation, industrialisation, middle-class growth + AC in demand growth.
Evaluate whether renewables can meet emerging-economy demand growth.

The global picture — ~600 EJ/year and growing

World energy demand ~600 EJ/year, growing ~1-2%/yr. Most growth from China + India + emerging economies; HICs stable.

Total world primary energy consumption is ~600 exajoules (EJ) per year (or equivalently ~14 000 million tonnes of oil equivalent, Mtoe). It has grown by ~50% since 2000.

Growth rate. ~1-2% per year in recent years. Some years (e.g. 2009 financial crisis, 2020 COVID) saw small dips; some years saw faster rebounds.

Where the growth comes from.

Region	Share of global energy (2024)	Trend
China	~30%	Rising fast, may plateau by ~2035
USA	~16%	Slowly declining
EU	~10%	Declining
India	~7%	Rising fast
Russia	~5%	Stable
Japan	~3%	Declining
Middle East	~6%	Rising
Latin America	~5%	Stable
Africa (whole continent)	~4%	Slowly rising

Two parallel trends:

HICs: per-capita demand stable or declining (efficiency, offshoring, saturation).
Emerging economies: per-capita demand rising fast (industrialisation, urbanisation, middle-class growth).

Net effect: total global demand keeps rising, driven by emerging economies.

Energy mix (~2024) — share of global PRIMARY energy:

Source	% of mix
Oil	31%
Coal	27%
Natural gas	24%
Hydro	7%
Nuclear	4%
Wind	3%
Solar	2%
Bio + other renewable	2%

Fossil fuels: ~80%. Renewables: ~13%. Nuclear: ~4%. The mix is shifting but slowly — coal share has fallen from ~29% (2010) to ~27% (2024); renewables have risen but mostly added to total demand rather than replacing fossils.

Authoritative data sources.

IEA (International Energy Agency, OECD-affiliated) — annual World Energy Outlook + Key World Energy Statistics.
BP Statistical Review of World Energy — annual since 1965, with country-by-country data.
Our World in Data (Oxford) — accessible reformulations of IEA + BP data.
EIA (US Energy Information Administration) — US + international data.

Global energy ~600 EJ/year, growing ~1-2%/yr.
China ~30% of global energy (largest), USA ~16%, EU ~10%, India ~7%, Africa ~4%.
HIC demand stable / declining; emerging-economy demand rising.
Energy mix: ~80% fossils (oil 31%, coal 27%, gas 24%); ~13% renewables; ~4% nuclear.
Authoritative data: IEA World Energy Outlook + BP Statistical Review.

Per-capita energy use — the rich-poor gulf

USA ~80 GJ/yr; China ~110; Germany ~140; Russia ~200; India ~25; Ethiopia <5. ~16× gap between USA + Ethiopia.

Per-capita energy use varies enormously across countries. Approximate ~2024 figures (primary energy):

Country	Per-capita (GJ/year)	Notes
Iceland	~700	Geothermal + hydro abundance
Norway	~250	Cold + hydropower + oil
Russia	~200	Cold + energy-intensive economy
Canada	~210	Cold + large country
USA	~80-90	HIC with consumption-heavy lifestyle (much higher than EU)
Australia	~220	Coal + minerals + transport
UAE	~290	Oil-rich + AC-dependent
Saudi Arabia	~230	Oil-rich + hot
Japan	~140	HIC, efficient + dense
France	~150	Nuclear-heavy
Germany	~140	Industrial + cold
UK	~100	HIC, post-industrial
China	~110	Coal-heavy industrial economy
Brazil	~60	Middle-income, hydro-rich
India	~25	Emerging economy, large rural population
Indonesia	~30	Emerging economy
Nigeria	~10	Oil exporter but limited grid access
Bangladesh	~10	Emerging economy, dense
Ethiopia	<5	LIC, mostly biomass
Burundi	<2	One of world's poorest

Key contrasts.

USA / Ethiopia gap ~16× — a child born in USA will use ~16× the energy of a child born in Ethiopia over their lifetime.
HIC / global-poor gap up to 100×+ (Norway vs Burundi).
HIC per-capita variation: Western Europe ~100-150 GJ; USA / Canada ~80-210 GJ; Middle-East oil states ~200-290 GJ.

Why so much variation?

Factor	Effect
Climate	Cold + hot extremes raise heating + cooling demand.
Geography	Large countries (Canada, Russia, Australia, USA) need more transport energy.
Industrial structure	Heavy industry (steel, cement) is energy-intensive.
Wealth + lifestyle	More cars, AC, fridges, electronics, travel, food.
Energy efficiency	Modern appliances + insulation use less per task.
Energy access	LICs constrained by lack of grid / infrastructure.

Africa's energy poverty. Africa has ~17% of world population but uses <5% of world energy. ~600m Africans have NO electricity access. ~900m lack clean cooking fuel. This is ENERGY POVERTY — it constrains development, education, healthcare + economic activity.

Implications. Closing the per-capita gulf requires either (a) HIC demand falling further (efficiency, lifestyle), (b) emerging-economy demand rising sustainably (via renewables), or (c) both. The shape of the global energy future depends on how this gulf evolves.

USA ~80 GJ, China ~110, Germany ~140, Russia ~200, India ~25, Ethiopia <5.
Gulf ~16× between USA + Ethiopia (up to 100× against poorest).
Drivers of variation: climate + geography + industry + wealth + efficiency + access.
Africa: <5% of global energy despite ~17% population; ~600m without electricity.
Energy poverty: ~770m without electricity globally, ~2.6bn without clean cooking.

HICs — stable / declining demand

HIC per-capita demand peaked ~2000-2010 and has been stable or falling. Drivers: efficiency, offshoring, saturation, climate policy, ageing.

In OECD high-income countries, per-capita primary energy use has been STABLE or DECLINING since ~2000-2010. Total HIC energy use is roughly stable despite continued GDP + population growth — a real if partial DECOUPLING.

Five drivers of HIC demand stabilisation.

1) Energy efficiency. Modern technology uses far less energy per task than 1970s equivalents:

LED lighting uses ~10% of incandescent energy.
A++ refrigerators use ~40% of 1990s equivalents.
Insulated buildings (modern UK Building Regulations, EU Passive House standard) cut heating demand by 50-80%.
Hybrid + electric cars use 30-70% less energy than petrol equivalents.
Energy-efficient industry — modern steel + chemicals use ~30% less energy/tonne than 1970s.

EU energy intensity of GDP (energy per US$ of GDP) fell ~40% (2000-2024).

2) Deindustrialisation + offshoring. HICs have shifted heavy manufacturing (steel, cement, chemicals, electronics, textiles) to China + emerging economies. The energy embodied in HIC-consumed goods is now counted in China's energy statistics, not the UK / US. This is partly a real efficiency gain (Chinese factories may be efficient) + partly an accounting transfer.

UK steel production fell from ~25m tonnes (1970) to ~5m tonnes (2024); UK textile manufacturing essentially disappeared. The energy that used to be used in UK is now used in China + Bangladesh.

3) Saturation. Developed consumers already have:

A car or two per household.
Central heating + AC.
Fridge + freezer.
Computers + smartphones.
Lighting in every room.
Modern appliances.

Adding more of these is constrained by what consumers can use. Demand is approaching natural ceiling.

4) Climate policy.

EU Emissions Trading System (ETS, 2005-) puts price on carbon, incentivising efficiency.
EU 'Fit for 55' target: 55% emissions reduction by 2030 vs 1990.
UK Net Zero by 2050 legal commitment.
USA Inflation Reduction Act (2022) — major clean-energy subsidies.
Carbon taxes in Sweden, Norway, France, Canada.

5) Demographic ageing. Shrinking working-age population in Japan, Germany, Italy etc. reduces commuting + industrial demand. Older households use less energy than younger ones.

Sectoral shift. HIC economies are dominated by SERVICES (banking, IT, professional services) which use far less energy per unit of GDP than manufacturing. ~75% of HIC GDP is services.

Caveats.

Decoupling is PARTLY accounting (offshoring) not real.
Decoupling is still INSUFFICIENT for climate targets — HICs need to decarbonise much faster.
HIC per-capita emissions still 2-3× global average + far above 1.5°C-consistent levels.

Examples.

UK: GDP up ~70% (1990-2024) while energy use FELL ~25% + emissions fell ~50% (production-side). Consumption-based emissions fell ~30%.
EU: GDP up ~60% (1990-2024); energy use down ~5%; emissions down ~30%.
USA: GDP up ~120%; energy use up ~10%; emissions down ~15%.
Japan: GDP up ~40%; energy use stable; emissions down ~10%.

The HIC pattern is genuine but slow + insufficient. Climate targets require ACCELERATING the trend.

HIC per-capita demand peaked ~2000-2010; stable / declining since.
Drivers: efficiency (LED, A++ appliances, insulation), offshoring, saturation, climate policy, ageing.
Service-sector shift (~75% of HIC GDP is services).
UK: GDP +70%, energy -25%, emissions -50% (1990-2024).
Decoupling is partly real (efficiency) + partly accounting (offshoring).
Still insufficient for climate targets — need to accelerate.

China + India — driving global demand

China ~30% of global energy (industrialisation, urbanisation, middle class); India fastest-growing major economy + future driver.

CHINA — the transformation 2000-2024.

China's share of global energy use rose from ~10% (2000) to ~30% (2024). China is now BY FAR the world's largest single energy consumer + emitter.

Drivers.

Driver	Detail
'World's factory'	China produces ~50% of global steel + cement, ~30% of chemicals + electronics. Heavy industry uses ~65% of China's energy.
Urbanisation	Urban share rose from 36% (2000) to 65% (2024) — ~300m moved to cities; each urbanite uses 3-4× rural energy.
Middle class	Grew from ~10m to ~400m — cars (30m sold/yr), AC, fridges, electronics.
Infrastructure boom	~40 000 km of high-speed rail; thousands of new airports + ports; world's largest electricity grid.
Coal abundance	China consumes ~50% of global coal — more than rest of world combined.
Export production	China's energy use partly serves HIC consumption.

Recent shift. China is also the WORLD'S LARGEST INSTALLER OF RENEWABLES — added ~290 GW of solar in 2023 (more than total US installed solar capacity). China makes ~80% of global solar panels + ~75% of EV batteries. Coal use may have peaked or be close to peaking; renewables are the marginal new electricity. China's transformation is shifting from quantity (more of everything) to quality (transition + efficiency).

INDIA — the next driver of global demand growth.

India was the world's 4th largest economy by 2024 + projected to be 3rd by 2030. Population ~1.4 billion (now world's most populous, having overtaken China in 2023). Per-capita energy use just ~25 GJ/year — vs USA ~80, China ~110.

Why India is the next growth driver:

Factor	Detail
Low base + huge population	~1.4bn people at ~25 GJ/yr leaves enormous room to grow.
'Make in India'	Modi government pushing manufacturing — steel, electronics, autos, pharma.
Urbanisation	Urban share ~36% (2024) → ~50% by 2050 = +300m urban residents.
AC adoption	IEA: India AC numbers ~40m (2020) → ~1 BILLION (2050) — driven by climate + middle-class growth.
Middle class	Growing from ~50m to ~500m+ over 25 years.
EV transition	Government pushing 30% EV share by 2030; ola electric two-wheelers booming.

IEA projection: India will account for ~25% of global energy DEMAND GROWTH between 2024 + 2050 — the largest single source of growth. India's CO₂ emissions could DOUBLE by 2050 if growth is fossil-fuel based.

Renewable response. India has set ambitious renewable target of 500 GW of non-fossil capacity by 2030 (vs ~180 GW in 2024). Adani + Reliance + Tata investing massively in solar + wind + green hydrogen. India + Sun France launched International Solar Alliance to spread solar to other tropical countries.

The China-India contrast.

China has been the dominant driver 2000-2024; its emissions + energy use plateau / decline this decade.
India will be the dominant driver 2024-2050+; emissions + energy use still rising fast.
Both invest heavily in renewables BUT also continue to expand coal as 'transition fuel' / 'energy security'.

Implications. The world's path to climate stabilisation depends largely on how China + India manage their transitions. Their combined emissions are now larger than the OECD; their per-capita levels are catching up.

China ~30% of global energy (vs 10% in 2000); world's largest single consumer.
Drivers: industrialisation, urbanisation (300m moved), coal, middle class, infrastructure.
China = world's largest RENEWABLES installer too (290 GW solar in 2023).
India ~7% global energy; per-capita just ~25 GJ — huge room to grow.
IEA: India = ~25% of global demand growth 2024-50 (largest single source).
India AC: 40m (2020) → 1bn (2050); 500 GW renewable target by 2030.

Africa — the energy-poverty paradox

<5% of global energy despite ~17% of population. ~600m without electricity. Future could leapfrog to renewables + mini-grids.

Africa is the GLARING EXCEPTION to the global energy growth story.

The numbers.

Africa has ~1.4 billion people (~17% of world population).
Africa uses ~4-5% of global energy.
~600 million Africans have NO electricity access (~43% of the continent).
~900m lack clean cooking facilities (rely on wood, charcoal, dung).
Per-capita energy use ~5-10 GJ/yr (vs USA ~80; China ~110).

Why.

Poverty + low GDP — energy services are unaffordable.
Lack of grid infrastructure — extending grids to dispersed rural populations is expensive.
Weak institutions — utilities often loss-making, can't invest in capacity.
Limited industrial base — few energy-intensive industries.
Reliance on biomass — traditional fuels (wood, charcoal, dung) for cooking + lighting.

Consequences of energy poverty.

Education — children study by kerosene lamp / no light.
Health — indoor air pollution from biomass cooking kills ~3-4m/yr globally (WHO).
Economy — businesses cannot operate without reliable electricity; productivity limited.
Refrigeration / vaccines — limited cold-chain for healthcare.
Connectivity — limits phone charging + internet access.

Future growth. Africa's population is projected to grow from 1.4bn (2024) to ~2.5bn (2050) to ~3.4bn (2100) — adding ~2bn people. Even maintaining current per-capita energy use would mean huge increase in total demand; closing the energy-poverty gap would mean much more.

Renewable opportunity. Africa has world-class solar resources (Sahara, Sahel) + significant wind + hydro + geothermal. The transition opportunity is to LEAPFROG fossil-fuel grids:

Distributed solar + mini-grids can reach rural villages faster than centralised grids — like mobile phones leapfrogged landlines.
M-KOPA (Kenya) — sold ~3m off-grid solar systems on pay-as-you-go.
Rwanda — rural electrification through mini-grids + solar; reached ~80% access from ~10% in 20 years.
Morocco's NOOR solar plant — 580 MW concentrated solar, world's largest.
Kenya's Lake Turkana wind farm — 310 MW, largest in Africa.
Egypt's Benban Solar Park — 1.8 GW, world's 4th largest.

Investment gap. Africa receives <2% of global renewable energy investment despite the need + opportunity. African Development Bank + UN initiatives (Mission 300 — connect 300m to electricity by 2030) trying to close the gap.

Climate justice angle. Africa is responsible for ~3% of historical CO₂ emissions but bears disproportionate climate impacts (Sahel drought, East African floods, sea-level rise on coast). Climate finance commitments from HICs are central to a JUST TRANSITION that includes Africa.

Africa <5% of global energy despite ~17% population.
~600m without electricity; ~900m without clean cooking.
Energy poverty hurts education, health, economy, healthcare.
Renewable leapfrog opportunity: M-KOPA Kenya (3m systems); Morocco NOOR (580 MW); Egypt Benban (1.8 GW).
But Africa gets <2% of global RE investment.
Africa's growth (1.4 → 3.4bn by 2100) will reshape global energy + climate.

Drivers + future trajectory

Population + urbanisation + industrialisation + AC + EVs + data centres drive growth; efficiency + decoupling restrain it. Future = continued growth from emerging + leveling in HICs.

Six MAIN drivers of rising global energy demand:

1) Population growth. World population: 3bn (1960) → 8bn (2026) → ~10bn (2080). Each person needs energy for food, shelter, transport, work.

2) Economic growth + rising affluence. Middle class globally ~1bn (2000) → ~3-4bn (2024). Middle-class consumers buy cars, fridges, AC, electronics, fly more.

3) Urbanisation. Urban share: ~30% (1960) → ~57% (2024) → ~68% (2050). Urban energy use 3-4× rural — cities require buildings, grids, transport, water + waste systems, manufacturing.

4) Industrialisation. China + India + South-East Asia + Africa industrialising. Heavy industry (steel, cement, chemicals, glass) is highly energy-intensive.

5) Cooling demand. Climate change + affluence drive AC adoption. IEA: global AC numbers ~1.6bn (2020) → ~5.6bn (2050) — could be ~30% of electricity growth. Africa + India + SE Asia particularly affected.

6) Digital + data centre + AI demand. Data centres consume ~1-2% of global electricity (~250-350 TWh/year), projected to TRIPLE by 2030 with AI growth. Cryptocurrency adds further (~0.5-1% of global electricity).

Plus transport. EVs replacing petrol — shifts demand from oil to electricity. Aviation + shipping + freight all growing.

Restraining forces:

Energy efficiency — appliances, vehicles, buildings.
Decoupling — service-sector growth uses less energy per unit GDP.
Renewable cost decline — solar PV ~$30/MWh; wind cost ↓70% since 2010.
Climate policy — EU ETS, US IRA, China dual-control targets.
Demographic ageing — slows demand in mature economies.

Future trajectory (IEA scenarios).

Scenario	2050 demand	Mix	Warming
Stated Policies (STEPS)	~700 EJ	~65% fossil	~2.5°C
Announced Pledges (APS)	~600 EJ	~45% fossil	~1.7-1.8°C
Net Zero Emissions (NZE)	~550 EJ	~22% fossil	~1.5°C

In the NZE scenario, total demand actually FALLS (efficiency outpaces growth) + renewables share rises to ~70%+. In STEPS, demand rises + fossil share only modestly declines.

Geographic redistribution.

HIC share of global energy: 60% (1990) → 35% (2024) → ~25% (2050).
Emerging economies share rising correspondingly.
China share peaks ~2030s + slowly declines.
India + Southeast Asia + Africa share rising through 2050.

The world energy system is undergoing the largest TRANSFORMATION in 150 years (since the rise of coal + oil). Pearson 4GE1 students live in the middle of this transition.

Drivers: population, affluence, urbanisation, industrialisation, AC (~5.6bn by 2050), data/AI.
Restraints: efficiency, decoupling, renewables cost-down, climate policy, ageing.
IEA scenarios: STEPS (~2.5°C), APS (~1.8°C), NZE (~1.5°C).
HIC share falling 60% (1990) → 25% (2050); emerging-economy share rising.
Largest energy transformation since the rise of coal + oil.

Quick recap

World energy ~600 EJ/year, growing ~1-2%/yr (IEA + BP data).
Energy mix ~80% fossils (oil 31%, coal 27%, gas 24%); ~13% RE; ~4% nuclear.
HIC per-capita demand stable / declining (efficiency, offshoring, saturation).
China ~30% of global energy (vs 10% in 2000) — world's largest consumer.
India = next driver: IEA ~25% of demand growth 2024-50; AC 40m → 1bn.
Africa <5% of global energy despite ~17% population; 600m without electricity.
Per-capita gulf: USA 80 / China 110 / Germany 140 / Russia 200 / India 25 / Ethiopia <5 GJ.
Drivers: pop + urbanisation + industrialisation + AC + EVs + data; restraints: efficiency + RE + policy.
IEA 2050 scenarios: STEPS (~2.5°C), APS (~1.8°C), NZE (~1.5°C).

Memorise this

Verbatim phrases and definitions Edexcel mark schemes credit.

Global energy ~600 EJ/year (~14 000 Mtoe), growing 1-2%/yr.
Mix: oil 31%, coal 27%, gas 24%, hydro 7%, nuclear 4%, wind 3%, solar 2%, bio 2%.
Country shares: China 30%, USA 16%, EU 10%, India 7%, Africa 4%.
Per-capita: USA 80, China 110, Germany 140, Russia 200, India 25, Ethiopia <5 GJ.
China added 290 GW solar in 2023 (more than US total).
India IEA forecast: ~25% of global demand growth 2024-2050.
Africa: ~600m without electricity; <2% of global RE investment.
IEA + BP Statistical Review = data sources.

How it’s examined

Spec Topic 4.4a (Changes in global energy demand + production) is tested in Paper 2 Section A or B through:

State (1-2 marks) — current global energy use; per-capita figures for named countries.
Describe (3 marks) — pattern of demand by region; changes since 2000.
Explain (4 marks) — why HIC demand is declining; why China's share has risen; why India is next driver.
Apply case (6 marks) — China's transformation; Africa's energy poverty; per-capita gulf.
Evaluate (6-10 marks) — Can renewables meet emerging-economy demand? What will 2050 mix look like? Is HIC decoupling real?

Mark-scheme keywords examiners credit: primary energy, exajoule, EJ, Mtoe, IEA, BP Statistical Review, energy mix, fossil fuels, oil, coal, gas, renewables, nuclear, hydro, wind, solar, per-capita, decoupling, offshoring, energy intensity, urbanisation, industrialisation, middle class, air-conditioning, EV, deindustrialisation, just transition, energy security, energy poverty, IEA scenarios, STEPS, APS, NZE.

Pearson 4GE1 Topic 4 examiner reports stress: (1) precise figures (countries + percentages); (2) contrast HIC / emerging / LIC; (3) named cases (China, India, Africa); (4) acknowledge BOTH demand growth + efficiency / RE response.

Sources: Pearson Edexcel International GCSE Geography (4GE1) Specification — Issue 4, February 2026, Topic 4.4a; IEA — World Energy Outlook (annual) + Key World Energy Statistics; BP Statistical Review of World Energy (annual 1965-); Our World in Data — energy section (Hannah Ritchie, Oxford); UN Sustainable Development Goal 7 — affordable + clean energy; World Bank — energy access database; Pearson 4GE1 Examiner Reports — Paper 2 (Human Geography). Last reviewed 2026-06-03.

Take this whole topic with you

Step-by-step worked examples — Changes in energy demand and production

Step-by-step solutions to past-paper-style questions on changes in energy demand and production, written exactly the way a tutor would explain them at the board.

1Current global energy demand
Getting started• AO1
Question
State the CURRENT (~2024) world energy consumption and its annual GROWTH RATE. [2]
Step-by-step solution
1. Step 1
  Total consumption (1 mark). ~600 exajoules (EJ) per year (~14 000 million tonnes of oil equivalent, Mtoe) — IEA + BP Statistical Review of World Energy data.
2. Step 2
  Growth rate (1 mark). Global energy demand is growing at ~1-2% per year — driven mainly by China + India + other emerging economies. HIC demand is roughly stable or falling.
Answer
Global energy consumption ~600 EJ/year (~14 000 Mtoe), growing ~1-2%/year, mainly driven by emerging economies.
Examiner tip
1 mark for total (EJ or Mtoe equivalent); 1 mark for growth rate + driver. IEA / BP are the authoritative sources.
2Why HIC energy demand is stable / falling
Getting started• AO1, AO2
Question
Explain THREE reasons why per-capita energy demand in HICs is stable or DECLINING. [3]
Step-by-step solution
1. Step 1
  Reason 1 (1 mark). Energy efficiency — modern appliances (LED, A++ refrigerators), insulated buildings, hybrid + EV cars use FAR LESS energy per task than 1970s equivalents.
2. Step 2
  Reason 2 (1 mark). Deindustrialisation + offshoring — HICs have shifted heavy manufacturing (steel, cement, chemicals) to China + emerging economies, so the energy used to make HIC goods is now counted in China not the UK / US.
3. Step 3
  Reason 3 (1 mark). Saturation — HIC consumers already have cars, fridges, computers, central heating; demand cannot grow much further. Service sector + digital economy use less energy than 20th-century manufacturing.
Answer
(1) Energy efficiency (LED, insulation, EVs); (2) deindustrialisation / offshoring (made-in-China imports); (3) saturation (developed consumer markets cannot grow much further).
Examiner tip
1 mark each for any THREE valid reasons. Pearson 4GE1 mark schemes accept: efficiency, offshoring, saturation, demographic ageing, climate policies, shift to services.
3China's energy growth
Building confidence• AO1, AO2
Question
Describe how CHINA's share of global energy consumption has CHANGED since 2000 and explain WHY. [4]
Step-by-step solution
1. Step 1
  Change (1 mark). China's share rose from ~10% of global energy use (2000) to ~30% (2024) — China is now the world's largest single energy consumer.
2. Step 2
  Reason 1 — industrialisation (1 mark). China became 'the world's factory' — producing ~50% of global steel, cement, chemicals + electronics. Heavy industry is highly energy-intensive.
3. Step 3
  Reason 2 — urbanisation (1 mark). Urban share rose from ~36% (2000) to ~65% (2024) — ~300 million people moved to cities; each urbanite uses 3-4× more energy than rural resident.
4. Step 4
  Reason 3 — rising affluence (1 mark). Middle class grew from ~10m to ~400m. Cars (now world's largest auto market — ~30m sales/year), air-con, fridges, electronics drove energy demand.
Answer
China's share rose from ~10% (2000) to ~30% (2024) — world's largest energy consumer. Drivers: (1) industrialisation ('world's factory' producing ~50% global steel + cement); (2) urbanisation (300m moved to cities, 3-4× rural energy use); (3) middle-class growth (400m middle class, ~30m car sales/year).
Examiner tip
Top-band 4-mark answer needs the figure CHANGE + ≥2 named reasons with figures.
4Per-capita energy gulf
Building confidence• AO1, AO2
Question
Describe the GULF in per-capita energy consumption between rich and poor countries. [4]
Step-by-step solution
1. Step 1
  Top end (1 mark). USA: ~80 GJ/yr per person. Other HICs (Canada, Australia, Norway, UAE) are similar or higher. China: ~110 GJ/yr (high due to coal-heavy industrial economy).
2. Step 2
  Middle (1 mark). Western Europe + Japan: ~80-130 GJ/yr (Japan ~140, France ~150, Germany ~140). Russia ~200 (cold + industrial). India: ~25 GJ/yr.
3. Step 3
  Bottom end (1 mark). Sub-Saharan Africa typically ~5-15 GJ/yr. Ethiopia <5 GJ/yr. Many African + South Asian rural households still rely on biomass (wood, charcoal, dung) with very low primary-energy use measured by official statistics.
4. Step 4
  Magnitude (1 mark). The gulf is ~16× between USA (80 GJ) and Ethiopia (<5 GJ) + larger if compared with Burundi or Somalia. This means a child born in USA will use ~16× the energy of a child born in Ethiopia over their lifetime.
Answer
USA ~80 GJ/yr; China ~110 GJ/yr; Germany ~140 GJ/yr; Russia ~200 GJ/yr; India ~25 GJ/yr; Ethiopia <5 GJ/yr. Gulf is ~16× between USA + Ethiopia, even wider against Burundi / Somalia.
Examiner tip
4 marks for figures across the spectrum + magnitude statement. Pearson 4GE1 mark schemes value specific country examples + numbers.
5India as next major energy growth source
Stretch• AO2, AO3, case-study
Question
Explain why INDIA is expected to be the FASTEST-GROWING source of global energy demand in the next 25 years. [6]
Step-by-step solution
1. Step 1
  Scale + per-capita gap (1 mark). India has ~1.4 billion people (now the world's most populous country, having overtaken China in 2023) but per-capita energy use is only ~25 GJ/yr — vs USA ~80, China ~110. There is enormous room to grow.
2. Step 2
  Industrialisation (2 marks). India's manufacturing share of GDP is rising; Modi government's 'Make in India' programme + 'Production Linked Incentives' aim to attract heavy industry from China. Steel, cement, chemicals + electronics production rising rapidly — all energy-intensive.
3. Step 3
  Urbanisation (1 mark). Urban share ~36% (2024) projected to reach ~50% by 2050 — ~300 million more urban residents. Each urbanite uses 3-4× more energy than rural resident. Cities require power grids, transport, air-con, lighting.
4. Step 4
  Air-conditioning demand (1 mark). Climate change + middle-class growth is driving massive AC adoption. IEA projects India's AC numbers to rise from ~40m units (2020) to ~1bn (2050) — a TENFOLD increase. Electricity peak demand could TRIPLE.
5. Step 5
  Forecasts (1 mark). IEA World Energy Outlook projects India to account for ~25% of global energy DEMAND GROWTH between 2024 + 2050 — the largest single source of growth. India's emissions may overtake the EU + USA combined by 2050 if growth is fossil-fuel based.
Answer
India ~1.4bn people, per-capita ~25 GJ/yr (low). Drivers: industrialisation (Make in India); urbanisation (~50% by 2050 = +300m urban); AC adoption (~40m → 1bn AC units 2020-50); rising middle class. IEA: India = ~25% of global energy demand growth 2024-50 — largest single source.
Examiner tip
6-mark top-band answer combines population scale + low base + named drivers (Make in India, AC growth) + IEA forecast. The 1bn AC units figure is iconic.
6Will demand growth be met by fossil or renewable?
Stretch• AO3, evaluate
Question
Evaluate whether RENEWABLES can meet the growing energy demand of emerging economies. [6]
Step-by-step solution
1. Step 1
  The challenge (1 mark). Emerging economies (China, India + Africa) will add most of the world's energy demand growth in coming decades. If met by FOSSIL fuels, climate targets are impossible.
2. Step 2
  Renewables case YES (2 marks). Solar PV is now cheapest electricity in most regions (~US $30/MWh vs US$ 60-80 for coal); wind costs also down 70%+. India + China are world's LARGEST solar + wind installers — China installed ~290 GW of solar in 2023 alone (>USA's total installed capacity). India targets 500 GW renewable by 2030. Battery storage cost ↓90% in 10 years.
3. Step 3
  Renewables case NO (1 mark). Intermittency: solar at night + wind on calm days need backup. Grid infrastructure not designed for renewables. Fossil-fuel infrastructure (coal plants in India, China, Indonesia) already locked in for 30+ years. Materials (lithium, cobalt, rare earths) face supply constraints.
4. Step 4
  Africa case (1 mark). Africa has ~600m people without electricity. Renewables (esp. distributed solar + mini-grids) can reach them faster than centralised grids. M-KOPA in Kenya has sold ~3m off-grid solar systems. BUT investment lags — Africa receives <2% of global renewable investment.
5. Step 5
  Judgement (1 mark). Renewables CAN meet emerging-economy demand growth — IEA modelling shows it is technically feasible + economically attractive. But it requires (a) massive investment (~US$4 trillion/yr globally by 2030); (b) grid + storage build-out; (c) policy support; (d) phasing out fossil-fuel subsidies. The transition is POSSIBLE but not GUARANTEED.
Answer
YES: solar cheapest electricity; China installed 290 GW solar in 2023; India targets 500 GW by 2030; Africa M-KOPA sold 3m off-grid solar. NO: intermittency; grid issues; fossil lock-in; materials constraints. JUDGEMENT: possible but requires $4 trillion/yr investment + policy support. Not guaranteed.
Examiner tip
Top-band 6-mark evaluation needs YES + NO + JUDGEMENT with named figures (China 290 GW; India 500 GW target; Africa M-KOPA 3m systems; $4 trillion/yr).

Model Answers — Changes in energy demand and production

High-scoring sample answers for changes in energy demand and production on the Cambridge IGCSE paper, with examiner-style notes mapping each response to the mark scheme and assessment objectives.

Question 1
2 marks
[EASY] State the current (~2024) world energy consumption and key data sources. [2]
Model answer
Current world energy consumption is ~600 exajoules (EJ) per year (~14 000 million tonnes of oil equivalent, Mtoe), growing at ~1-2% per year.

The two main international data sources are:

International Energy Agency (IEA) — annual 'World Energy Outlook' and 'Key World Energy Statistics'.

BP Statistical Review of World Energy — annual data dating back to 1965.

Most growth is from emerging economies (China, India, Southeast Asia). HIC demand is broadly stable or declining.
Why this scores
2 marks: 1 for figure (~600 EJ or equivalent), 1 for growth rate or named source (IEA / BP).
Question 2
3 marks
[EASY] State per-capita energy use figures for THREE contrasting countries. [3]
Model answer
Per-capita primary energy consumption (~2024 data, IEA / BP):

USA: ~80 GJ/year per person (HIC, energy-intensive lifestyle).

India: ~25 GJ/year per person (rapidly growing emerging economy with large rural population).

Ethiopia: ~5 GJ/year per person (LIC, mostly biomass + limited grid access).

This is a ~16× gap between the highest + lowest. Other reference points: China ~110 GJ (coal-heavy industrial); Germany ~140 GJ; Russia ~200 GJ; Norway ~250 GJ (cold + hydropower); Burundi <2 GJ.
Why this scores
3 marks: 1 for each country with figure + brief context. Pearson 4GE1 mark schemes credit contrast between HIC / emerging / LIC.
Question 3
4 marks
[MEDIUM] Compare and contrast trends in energy demand in HICs and emerging economies. [4]
Model answer
HIC energy demand: stable or DECLINING per capita.

In OECD countries, per-capita energy consumption peaked around 2000-2010 + has been declining or flat since. Reasons:

Efficiency: LED lighting, A++ appliances, insulated buildings, hybrid + EV cars all use far less energy per task.

Deindustrialisation / offshoring: heavy manufacturing has moved to China + emerging economies. The energy embodied in HIC-consumed goods is now counted in China.

Saturation: developed consumers already have cars, fridges, computers, central heating; demand cannot grow much further.

Climate policy: EU + UK net-zero commitments; carbon prices; renewable mandates.

Ageing demographics: shrinking working population reduces commuting + industrial demand.

Total HIC energy use has been roughly STABLE since 2000 despite population + GDP growth — a major decoupling.

Emerging-economy energy demand: GROWING RAPIDLY.

China's share of global energy rose from ~10% (2000) to ~30% (2024) — driven by:

Industrialisation ('world's factory' producing ~50% of global steel + cement).

Urbanisation (300m moved to cities since 2000; each urbanite uses 3-4× rural energy).

Rising middle class (400m people; cars, AC, fridges).

India is now the world's fastest-growing major energy consumer. IEA projects India will account for ~25% of global demand growth 2024-2050. Drivers similar to China but lagging by ~25 years. AC alone projected to grow from ~40m units (2020) to ~1bn (2050).

Africa still uses <5% of global energy despite having ~17% of population — ~600m Africans have no electricity at all. Demand will grow as access expands, but per-capita levels will remain far below HIC norms.

Contrast. HIC demand is FLAT despite growth; emerging-economy demand is RISING fast; LIC demand is SUPPRESSED by lack of access (energy poverty) rather than lack of need.
Why this scores
4 marks: 1 for HIC trend, 1 for HIC reasons, 1 for emerging trend + driver, 1 for contrast / synthesis. Naming China + India share figures lifts to top band.
Question 4
4 marks
[MEDIUM] Explain the main CAUSES of rising global energy demand. [4]
Model answer
1) Population growth. World population rose from ~3bn (1960) to ~8bn (2026) — every additional person needs energy for food, shelter, transport, work.

2) Economic growth + rising affluence. As countries develop, per-capita energy use rises until very high levels — more cars, fridges, AC, lighting, electronics, services. Middle class in emerging economies has grown from ~1bn (2000) to ~3bn+ (2024).

3) Urbanisation. Cities are far more energy-intensive than rural areas. Urban residents use 3-4× more energy than rural residents because of buildings, transport, electricity grids, water + waste systems, manufacturing. World urban share rose from ~30% (1960) to ~57% (2024); projected ~68% by 2050.

4) Industrialisation. Heavy industry (steel, cement, chemicals, glass) requires huge energy inputs. China became 'world's factory' producing ~50% of global steel + cement, consuming massive coal-fired electricity. India + South-East Asia follow.

5) Transport growth. Vehicle ownership rising fast in emerging economies — China has the world's largest car market (~30m sales/year). Air travel growing ~5%/year globally. Shipping + road freight expanding.

6) Air-conditioning / cooling demand. Climate change + rising affluence drive AC adoption. IEA projects global AC numbers to rise from ~1.6bn (2020) to ~5.6bn (2050). Cooling could be ~30% of global electricity growth.

7) Digital + data centre demand. Data centres consume ~1-2% of global electricity, projected to triple by 2030 with AI growth.

These causes interact: growing population + urbanising + industrialising + getting richer all amplify each other. Most growth from now on will come from emerging economies (China, India, Indonesia, sub-Saharan Africa).
Why this scores
4 marks for 4 named causes with brief explanation. Top-band answers cite figures (300m urbanised in China; 1.6bn → 5.6bn AC units; ~3bn middle class).
Question 5
6 marks
[HARD] Describe and explain CHINA's transformation into the world's largest energy consumer (2000-2024). [6]
Model answer
The transformation.

In 2000, China was the world's second-largest energy consumer (~10% of global) — far behind the USA (~25%). By 2024, China consumes ~30% of global energy — more than double the USA — and is by far the largest single energy consumer on the planet. Coal use alone accounts for ~30% of all global fossil-fuel use.

Drivers.

1) Manufacturing supercycle. China became 'the world's factory' after joining the WTO in 2001. By 2024 it produces:

~50% of global steel.

~50% of global cement.

~30% of global chemicals.

~30% of global electronics.

Heavy industry is highly energy-intensive. China's industrial sector consumes ~65% of national energy — far higher than HIC norms (~30-40%).

2) Massive urbanisation. Urban share rose from ~36% (2000) to ~65% (2024) — ~300 million people moved to cities. Each urbanite uses 3-4× more energy than a rural resident. China built more skyscrapers + housing in 20 years than the rest of the world combined.

3) Coal dominance. China was historically reliant on its vast coal reserves. Coal supplied ~60% of China's energy in 2024 (down from ~70% in 2010 but still dominant). China consumes ~50% of global coal — more than the rest of the world combined.

4) Middle-class consumption. Middle class grew from ~10m (2000) to ~400m (2024). Effects:

Cars: China is now the world's largest auto market (~30m sales/year).

Air-conditioning: ~700m AC units installed.

Electronics: smartphones, computers, household appliances.

Air travel: ~700m air passengers/year.

5) Infrastructure boom. China built ~40 000 km of high-speed rail (more than the rest of the world combined), thousands of new airports, new ports + the world's largest electricity grid. Construction + operation all energy-intensive.

6) Heavy industry exports. China exports steel + aluminium + cement embodying energy use — much of HIC consumption is now powered by Chinese coal.

Recent shifts (2020-2024).

China has become the world's LARGEST INSTALLER OF RENEWABLES too — added ~290 GW of solar in 2023 alone (more than total US installed solar capacity); ~76 GW wind. China makes ~80% of global solar panels + ~75% of EV batteries. China's COAL use may have peaked or be close to peaking; renewables are taking the majority of new electricity demand.

Geographical significance.

China's transformation has shifted the centre of gravity of the world energy system. Decisions made in Beijing now dominate global energy markets, emissions trajectories + technology supply chains. The world's path to climate stabilisation depends heavily on how China manages its remaining energy transition.
Why this scores
6-mark HARD answer needs (1) transformation figures (10% → 30%); (2) industrial / urban / coal / middle-class drivers; (3) recent renewables shift; (4) global significance. Naming 300m urbanised + 30m car sales + 290 GW solar lifts to A*.
Question 6
6 marks
[HARD] 'HIC energy demand has DECOUPLED from economic growth.' Evaluate this claim. [6]
Model answer
Decoupling means GDP grows while energy use (or emissions) does NOT — economic activity becomes less energy-intensive.

Evidence FOR decoupling in HICs.

UK: GDP grew ~70% from 1990 to 2024 while energy use FELL ~25% + emissions fell ~50%. The UK is one of the clearest decoupling cases globally.

EU as a whole: GDP up ~60% (1990-2024); energy use down ~5%; emissions down ~30%.

USA: GDP up ~120% (1990-2024); energy use up ~10%; emissions down ~15%.

Japan: GDP up ~40%; energy use stable; emissions down ~10%.

The decoupling has been driven by:

1) Energy efficiency. Modern appliances, vehicles + buildings far more efficient. EU energy intensity of GDP fell ~40% (2000-2024).

2) Service-sector shift. Banking, IT, professional services use much less energy per unit GDP than manufacturing.

3) Renewable electricity. Wind + solar provide low-carbon electricity for the same economic activity.

4) Carbon pricing + policy. EU ETS (Emissions Trading System, 2005-) + national net-zero commitments drove emissions cuts.

Evidence AGAINST genuine decoupling.

1) Offshoring. Much HIC manufacturing has moved to China + emerging economies. The energy + emissions to produce HIC-consumed goods are now counted in China — not the HIC. When measured on a CONSUMPTION basis (i.e. including imports), HIC emissions decline is much smaller.

UK consumption-based emissions have fallen ~30% (1990-2024), vs 50% on production basis — meaningful but smaller.

2) Stagnation. HIC GDP growth has slowed since 2008 financial crisis. With slower growth, energy + emission flatlining is easier.

3) Demographic ageing. Shrinking working population reduces commuting + industrial demand.

4) Climate hasn't decoupled. Even with decoupling, HIC emissions remain 2-3× per capita the global average + far above what is consistent with 1.5°C target.

5) Decoupling has NOT spread to emerging economies. China + India energy + emissions rising in line with GDP. Decoupling so far is a HIC phenomenon.

Verdict.

The claim is PARTLY TRUE but needs qualification:

HIC PRODUCTION-side energy + emissions HAVE decoupled from GDP growth — this is real + measurable.

But CONSUMPTION-side decoupling is much weaker because of offshoring.

Decoupling has been gradual + insufficient — current rates are FAR short of what climate targets require.

The phenomenon is HIC-specific so far.

The honest verdict: HICs HAVE DECOUPLED — but the decoupling is partly real (efficiency + renewables) + partly accounting (offshoring + service-sector shift). Genuine global decoupling sufficient to meet climate targets requires accelerating innovation + similar transformation in emerging economies.
Why this scores
6-mark HARD answer needs FOR + AGAINST + JUDGEMENT. Top-band answers distinguish PRODUCTION-side from CONSUMPTION-side decoupling — the offshoring caveat is the A* point.
Question 7
4GE1 Paper 2 style (AO3 synthesis)8 marks
[CHALLENGE] What will the global energy mix look like in 2050? Use evidence to evaluate competing scenarios. [8]
Model answer
The future global energy mix in 2050 is one of the most contested questions in geography + economics. IEA modelling provides a useful frame, comparing three main scenarios:

Scenario 1: STATED POLICIES (STEPS). Current government commitments are met but no new ambition.

Fossil fuels: ~65% of 2050 mix (down from ~80% in 2024).

Renewables: ~30%.

Nuclear: ~5%.

World warms ~2.5°C.

Scenario 2: ANNOUNCED PLEDGES (APS). Every government's stated net-zero pledge is fulfilled.

Fossils: ~45%.

Renewables: ~45%.

Nuclear: ~10%.

World warms ~1.7-1.8°C.

Scenario 3: NET ZERO EMISSIONS by 2050 (NZE). Limits warming to 1.5°C.

Fossils: ~22%.

Renewables: ~70%+.

Nuclear: ~8%.

World warming ~1.5°C.

Evidence on which scenario is most likely.

Renewables side (supports NZE / APS).

Solar PV cheapest electricity ever made. ~US $30/MWh in best regions vs US$ 60-80 for coal. Once installed, fuel is free.

Wind cost ↓70% since 2010. Offshore wind scaling rapidly (UK Dogger Bank 3.6 GW; China expanding offshore).

Battery cost ↓90% since 2013. Storage now economic for daily grid balancing.

China + India + EU scaling renewables. China added 290 GW solar in 2023 alone. India targets 500 GW renewables by 2030. EU targets 42.5% renewable share by 2030.

EV growth. EVs were ~14% of new car sales globally (2023); projected ~50%+ by 2030. By 2050 most light vehicles will be electric.

Capital flows. Renewable investment ~US$2 trillion in 2024 — 2× fossil-fuel investment for the first time ever.

Fossil side (supports STEPS).

Coal use HIGHER than ever in 2024 — ~8 700 Mtonnes, record. China + India + Indonesia + Vietnam continue building coal plants for energy security.

Oil demand still RISING — ~102m barrels/day (2024), no sign of plateau yet. Aviation + heavy trucks + petrochemicals hard to electrify.

Gas growing as 'transition fuel' — Europe replaced Russian gas with LNG; USA gas production at record.

Fossil-fuel subsidies still $7 trillion/year globally (IMF) including externalities.

Energy security panic post-Ukraine 2022 + Middle East conflicts shifted political focus from climate to security.

Africa + South Asia development demands energy growth that fossils currently provide.

Nuclear side.

France ~70% nuclear electricity; South Korea + Russia + China building new reactors.

Small Modular Reactors (SMRs) being developed by ~50 firms but commercial deployment delayed.

Public opposition in Germany + Italy + Spain; capital costs very high.

Unlikely to exceed ~10% of 2050 mix.

Geographical pattern of the mix.

Europe: most aggressive renewable transition; high RE share by 2050.

USA: mixed — strong solar / wind in California + Texas; coal phase-down; oil + gas still major.

China: world's largest installer of both RENEWABLES + COAL — uses both depending on need; will probably hit peak coal ~2030s + then decline.

India: aggressive solar deployment but also large new coal capacity; mixed mix for decades.

Africa: distributed solar + mini-grids may leapfrog grid-based fossil systems; but limited investment.

Middle East: oil + gas exporters diversifying into solar (UAE Masdar, Saudi NEOM); will probably maintain hydrocarbon role.

My judgement.

Most likely outcome (mid-scenario): the 2050 mix will be a HYBRID between STEPS + APS — perhaps:

Renewables: ~50-55% (vs ~14% in 2024).

Fossils: ~30-35% (vs ~80% in 2024).

Nuclear + others: ~10-15%.

World warms ~2-2.5°C.

The NZE scenario is TECHNICALLY POSSIBLE — IEA modelling shows it is — but requires unprecedented policy + capital + behaviour change that is unlikely without crisis-level action.

The geographic implications.

Energy-rich fossil-fuel exporters (Russia, Saudi Arabia, Australia, Nigeria) face long-term decline + must diversify.

Renewable-rich regions (sunny + windy areas; mineral-rich regions for batteries) gain.

Energy poverty in Africa may persist if investment doesn't follow.

Climate impacts (heat, drought, sea-level rise) will continue accumulating throughout the transition.

Conclusion.

The global energy mix in 2050 will be FAR MORE RENEWABLE than today but probably NOT YET fully decarbonised. The pace of transition determines climate outcomes. Pearson 4GE1 students should be able to discuss the three IEA scenarios + the geographic implications of each.
Why this scores
8-mark CHALLENGE answer needs (1) IEA scenarios framework, (2) evidence for + against each path, (3) regional pattern, (4) judgement on likely 2050 mix. Top-band answers cite IEA STEPS / APS / NZE + specific figures (China 290 GW solar; battery cost ↓90%; coal at record in 2024).
Question 8
4GE1 Paper 2 style (AO3 synthesis essay)10 marks
[EXTENDED] 'The energy transition must be GLOBAL + JUST.' Discuss the geographical challenges + opportunities of the global energy transition. [10]
Model answer
The shift from a fossil-fuel-dominated energy system to a low-carbon one — the 'energy transition' — is the defining infrastructure challenge of the 21st century. It is also a profoundly GEOGRAPHICAL challenge: it changes WHICH places have economic value, WHICH places must change their economic base, WHICH populations benefit + WHICH bear the cost.

The phrase 'JUST TRANSITION' (used by the ILO, UN, EU + many governments) recognises that the energy transition cannot be successful unless it addresses fairness:

Between RICH + POOR countries.

Between HIGH + LOW emitters.

Between current + future generations.

Between fossil-fuel workers + new green-economy workers.

Between energy-rich exporters + import-dependent countries.

This essay examines the geographic challenges + opportunities of making the energy transition global + just.

The scale of the challenge.

World energy demand ~600 EJ/year (2024) + still growing ~1-2%/year.

~80% currently from fossil fuels (coal 27%, oil 31%, gas 24%).

~13% from renewables (mainly hydro 7%, wind 3%, solar 2%, bio 1%).

~4% nuclear.

To meet Paris 1.5°C target: must replace nearly all fossil-fuel-based energy by ~2050 + simultaneously meet rising demand from emerging economies.

Geographic challenge 1: HIC vs Emerging-economy responsibilities.

HICs have produced ~75% of historical emissions but ~17% of current population. Emerging economies are increasing emissions BUT per-capita levels are still far below HIC norms. Question: how to share the remaining 'carbon budget'?

USA per-capita emissions ~15 tonnes CO₂/yr.

China ~8 tonnes.

India ~2 tonnes.

Sub-Saharan Africa ~1 tonne.

The 'CLIMATE JUSTICE' argument: HICs should decarbonise FAST + transfer technology + finance to emerging economies to support their transition. Paris Agreement included a US$100bn/year climate finance pledge from HICs to LICs — partially fulfilled.

Geographic challenge 2: Fossil-fuel-dependent regions face economic collapse.

Regions whose economies depend on fossil fuels face existential transition risk:

Coal regions: Appalachia (USA), Silesia (Poland), Shanxi (China), South Wales (UK historic). Communities have already faced post-coal decline; experience suggests retraining + investment programmes are essential to prevent population collapse + opioid epidemics (Appalachia model).

Oil-dependent states: Saudi Arabia (oil ~70% government revenue), Russia (~50%), UAE, Nigeria, Venezuela. Need to diversify economies before transition completes.

Australia / Indonesia / South Africa: major coal + LNG exporters with stranded-asset risk.

Just transition implications: governments need to invest in RE-SKILLING + ECONOMIC DIVERSIFICATION in fossil-fuel regions. Germany committed €40bn for coal region transition (2020).

Geographic challenge 3: Renewables require different geography.

The new energy system has DIFFERENT GEOGRAPHIC PATTERNS than the old:

Solar: best in sunny low-latitude regions (Sahara, Middle East, India, Mexico, US Southwest, Australia). Could turn currently poor desert regions into energy exporters (Morocco's NOOR solar plant; Saudi NEOM).

Wind: best in coastal + plains (Denmark, UK North Sea, US Midwest, Chinese Inner Mongolia, Patagonia).

Hydropower: requires mountains + rainfall (Iceland, Norway, Brazil, Bhutan, China).

Geothermal: requires tectonic activity (Iceland, Kenya, Indonesia, New Zealand).

Critical minerals: lithium (Chile, Australia), cobalt (DRC), copper (Chile, Peru), rare earths (China dominates). New geography of resource extraction with its own justice + environmental concerns.

Some places GAIN: sunny deserts may become valuable + connected; mineral-rich regions get investment. Some LOSE: oil-rich regions face decline.

Geographic challenge 4: Energy poverty + access.

~770 million people globally have no electricity access (mostly sub-Saharan Africa + South Asia).

~2.6bn lack clean cooking facilities.

These populations need ENERGY GROWTH for development — schools, hospitals, lighting, refrigeration, productive use.

A just transition cannot mean denying energy access to those who have NONE — it means leapfrogging fossil-fuel infrastructure to renewables.

M-KOPA Kenya: ~3m off-grid solar systems sold.

Rwanda: rural electrification through mini-grids + solar.

India: massive solar push helping rural electrification (Saubhagya scheme reached ~26m households).

But Africa still receives <2% of global renewable investment — a major injustice.

Geographic opportunity 1: Renewable abundance changes the energy map.

Solar + wind are GEOGRAPHICALLY ABUNDANT compared with fossil fuels. The amount of solar energy hitting Earth in 1 hour exceeds global annual energy demand. Wind, hydro, geothermal also abundant. The transition is about INFRASTRUCTURE not RESOURCE — meaning more regions can be 'energy-rich'.

This DECONCENTRATES energy geopolitics. The world becomes less dependent on the Persian Gulf + Russia for energy security. Many countries can produce more of their own energy.

Geographic opportunity 2: Industrial + technology leadership.

The renewable industries — solar manufacturing, wind turbines, batteries, EVs, hydrogen — represent the largest new industrial sectors of the 21st century.

China dominates solar (80% global manufacturing), EVs (60% of global production), batteries (75%).

EU leads wind turbine manufacturing + hydrogen R&D.

USA leads in EV technology (Tesla) + battery innovation.

Japan + Korea strong in batteries + hydrogen.

Countries that develop renewable industries gain economic advantage. India + Vietnam + Brazil are seeking to enter these supply chains.

Geographic opportunity 3: New jobs.

IEA estimates renewable energy already employs ~14 million people globally + could employ ~30-40 million by 2030 — replacing fossil-fuel jobs + creating net additional employment. Solar installation + wind operation are LABOUR-INTENSIVE compared with capital-intensive fossil plants. The transition could create more jobs than it destroys — IF re-training + regional investment occur.

Geographic opportunity 4: Co-benefits.

The energy transition has CO-BENEFITS beyond climate:

Air quality: ~7 million premature deaths/year from air pollution (WHO); renewables eliminate this.

Energy security: less reliance on volatile oil + gas imports.

Health: outdoor + indoor air pollution major killer.

Equity: distributed solar can power villages cheaper than centralised grids.

Geographic challenge 5: Pace + scale.

The IEA's NZE 2050 scenario requires:

US $4 trillion/year investment in clean energy by 2030 (vs ~US$ 2 trillion in 2024).

Tripling renewable capacity globally by 2030.

Doubling energy efficiency improvement rate.

~95% of electricity from low-carbon sources by 2050.

~50% of all light vehicles electric by 2030.

This pace is HISTORICALLY UNPRECEDENTED. Past energy transitions (wood → coal in 19th century, coal → oil in 20th century) took 60-80 years. We have 30 years to do it again — at much larger scale + driven by policy rather than market.

Geographic challenge 6: Climate impacts during the transition.

Climate change is already raising temperatures, drought, flood + sea-level pressure. The energy transition must occur WHILE these impacts are accumulating — making the task harder + more urgent.

Synthesis.

A truly JUST + GLOBAL energy transition requires:

HIC leadership — fast decarbonisation + technology transfer.

Emerging-economy support — climate finance + renewable investment in India / China / Africa.

Fossil-fuel region transition — re-training + economic diversification.

Energy access for the poor — distributed solar in Africa + South Asia.

Critical minerals supply chains — managing extraction in DRC / Chile / China sustainably.

Just employment transition — protecting workers in declining + growing sectors.

Carbon pricing + policy — aligning markets with climate goals.

International cooperation — Paris Agreement implementation + COP processes.

The energy transition is BOTH the greatest CHALLENGE of the 21st century (scale, pace, equity) AND the greatest OPPORTUNITY (new industries, jobs, security, health). Geographic thinking is central — different places face different challenges + opportunities, + the transition's outcome will depend on managing these differences fairly.

Judgement.

The transition WILL HAPPEN — economic forces (renewable cost decline) + political pressure (climate impacts) make it inevitable. The question is whether it will happen FAST ENOUGH to limit warming to 1.5-2°C + FAIRLY ENOUGH to maintain political support. Pearson 4GE1 students should grasp that the energy transition is not just a TECHNICAL challenge but a profoundly POLITICAL + GEOGRAPHIC one — one of the great human projects of their generation.
Why this scores
10-mark EXTENDED essay needs (1) clear thesis (global + just transition possible but contingent on policy + finance), (2) at least 4 geographic challenges (HIC/LIC justice, fossil regions, renewable geography, energy poverty), (3) opportunities (new industries, jobs, security, health), (4) named cases (China 290 GW solar; M-KOPA Kenya; Germany €40bn coal regions; IEA NZE), (5) recognition of pace + scale challenge. Top-band answers integrate the JUSTICE framing throughout, not just at the end.

Key Definitions and Keywords — Changes in energy demand and production

Definitions to memorise and the exact keywords mark schemes credit for changes in energy demand and production answers — sharpened from recent examiner reports for the 2026 Cambridge IGCSE sitting.

Primary energy
Examiner keyword
Energy in its original form (coal, oil, gas, sunlight, wind, hydro, uranium, biomass) before conversion to usable forms (electricity, refined fuels).
Final energy
Energy delivered to end-users in usable form (electricity, refined petrol, gas mains).
Exajoule (EJ)
10^18 joules — standard unit for global energy statistics. World uses ~600 EJ/year.
Million tonnes of oil equivalent (Mtoe)
Alternative unit for energy statistics; 1 Mtoe ≈ 42 PJ. World uses ~14 000 Mtoe/year.
Energy mix
Examiner keyword
The proportion of total energy consumption coming from each source (coal, oil, gas, nuclear, hydro, wind, solar, bio).
Decoupling
Examiner keyword
When GDP grows but energy use (or emissions) does not — economic activity becomes less energy-intensive.
Energy intensity (of GDP)
Energy used per unit of GDP. Lower = more efficient economy.
International Energy Agency (IEA)
OECD agency providing authoritative global energy data + scenarios (World Energy Outlook).
BP Statistical Review of World Energy
Annual report (since 1965) of global energy production + consumption + reserves.
Energy transition
Examiner keyword
The shift from a fossil-fuel-dominated energy system to a low-carbon system based on renewables + efficiency.
Just transition
Examiner keyword
Energy transition that is fair to fossil-fuel workers, energy-poor populations + emerging economies — concept used by ILO, UN, EU.
Energy security
Examiner keyword
Reliable, affordable access to energy — diversified by source + supplier + protected from political disruption.
Energy poverty
Lack of access to modern energy services. ~770m people have no electricity; ~2.6bn lack clean cooking facilities.
IEA Stated Policies Scenario (STEPS)
IEA scenario assuming current government commitments are met but no new ambition. Yields ~2.5°C warming.

Common Mistakes and Misconceptions — Changes in energy demand and production

The traps other students keep falling into on changes in energy demand and production questions — taken from recent Cambridge IGCSE examiner reports and mark schemes — and how to avoid them.

✕Mixing up energy units (kWh, GJ, Mtoe, EJ)
Pearson 4GE1 Examiner Reports — Topic 4
Why it happens
Many units in use.
How to avoid it
Memorise key reference points: world uses ~600 EJ/yr (~14 000 Mtoe); HIC per-capita ~80-200 GJ; LIC <10 GJ. Don't worry about exact conversions — focus on the RELATIVE comparisons.
✕Treating energy as just fossil fuels
Why it happens
Fossil fuels dominate the mix.
How to avoid it
The energy mix is FOUR major categories: (1) fossil fuels (oil 31%, coal 27%, gas 24% = ~80% total); (2) renewables (hydro 7%, wind 3%, solar 2%, bio 1% = ~13%); (3) nuclear (~4%); (4) traditional biomass. Mention all when discussing global energy.
✕Generic answers without country/figure
Why it happens
Easier than memorising.
How to avoid it
ALWAYS quote: China ~30% global energy; India ~25% of growth to 2050; USA per-capita ~80 GJ; Africa <5% of global use. Pearson 4GE1 mark schemes reward located + quantified detail.
✕Treating China only as a coal user
Why it happens
China does use ~50% of global coal.
How to avoid it
Also note China is WORLD'S LARGEST INSTALLER OF RENEWABLES — 290 GW solar in 2023 alone; makes ~80% of global solar panels; ~75% of EV batteries. China is BOTH the largest fossil + largest renewable player.
✕Treating all emerging economies as the same
Why it happens
Grouping by 'developing'.
How to avoid it
China is now huge (~30% global energy) + 'middle-income'. India still per-capita poor (~25 GJ) but huge total. Sub-Saharan Africa still very low total (<5%) + per-capita (~5 GJ). Each has distinct trajectory.
✕Over-claiming HIC decoupling
Why it happens
UK / EU statistics look impressive.
How to avoid it
Acknowledge that PRODUCTION-side decoupling is partly accounting — energy + emissions have moved to China via offshoring. CONSUMPTION-side decoupling is smaller. Top answers distinguish these.

Changes in Global Energy Demand & Production — Pearson Edexcel IGCSE Geography (4GE1) Study Notes

Region

Share of global energy (2024)

Trend

China

~30%

Rising fast, may plateau by ~2035

USA

~16%

Slowly declining

~10%

Declining

India

~7%

Rising fast

Russia

~5%

Stable

Japan

~3%

Declining

Middle East

~6%

Rising

Latin America

~5%

Stable

Africa (whole continent)

~4%

Slowly rising

Source

% of mix

Oil

31%

Coal

27%

Natural gas

24%

Hydro

Nuclear

Wind

Solar

Bio + other renewable

Country

Per-capita (GJ/year)

Notes

Iceland

~700

Geothermal + hydro abundance

Norway

~250

Cold + hydropower + oil

Russia

~200

Cold + energy-intensive economy

Canada

~210

Cold + large country

USA

~80-90

HIC with consumption-heavy lifestyle (much higher than EU)

Australia

~220

Coal + minerals + transport

UAE

~290

Oil-rich + AC-dependent

Saudi Arabia

~230

Oil-rich + hot

Japan

~140

HIC, efficient + dense

France

~150

Nuclear-heavy

Germany

~140

Industrial + cold

~100

HIC, post-industrial

China

~110

Coal-heavy industrial economy

Brazil

~60

Middle-income, hydro-rich

India

~25

Emerging economy, large rural population

Indonesia

~30

Emerging economy

Nigeria

~10

Oil exporter but limited grid access

Bangladesh

~10

Emerging economy, dense

Ethiopia

LIC, mostly biomass

Burundi

One of world's poorest

Factor

Effect

Climate

Cold + hot extremes raise heating + cooling demand.

Geography

Large countries (Canada, Russia, Australia, USA) need more transport energy.

Industrial structure

Heavy industry (steel, cement) is energy-intensive.

Wealth + lifestyle

More cars, AC, fridges, electronics, travel, food.

Energy efficiency

Modern appliances + insulation use less per task.

Energy access

LICs constrained by lack of grid / infrastructure.

Driver

Detail

'World's factory'

China produces ~50% of global steel + cement, ~30% of chemicals + electronics. Heavy industry uses ~65% of China's energy.

Urbanisation

Urban share rose from 36% (2000) to 65% (2024) — ~300m moved to cities; each urbanite uses 3-4× rural energy.

Middle class

Grew from ~10m to ~400m — cars (30m sold/yr), AC, fridges, electronics.

Infrastructure boom

~40 000 km of high-speed rail; thousands of new airports + ports; world's largest electricity grid.

Coal abundance

China consumes ~50% of global coal — more than rest of world combined.

Export production

China's energy use partly serves HIC consumption.

Factor

Detail

Low base + huge population

~1.4bn people at ~25 GJ/yr leaves enormous room to grow.

'Make in India'

Modi government pushing manufacturing — steel, electronics, autos, pharma.

Urbanisation

Urban share ~36% (2024) → ~50% by 2050 = +300m urban residents.

AC adoption

IEA: India AC numbers ~40m (2020) → ~1 BILLION (2050) — driven by climate + middle-class growth.

Middle class

Growing from ~50m to ~500m+ over 25 years.

EV transition

Government pushing 30% EV share by 2030; ola electric two-wheelers booming.

Scenario

2050 demand

Mix

Warming

Stated Policies (STEPS)

~700 EJ

~65% fossil

~2.5°C

Announced Pledges (APS)

~600 EJ

~45% fossil

~1.7-1.8°C

Net Zero Emissions (NZE)

~550 EJ

~22% fossil

~1.5°C

The shift from a fossil-fuel-dominated energy system to a low-carbon one — the 'energy transition' — is the defining infrastructure challenge of the 21st century. It is also a profoundly GEOGRAPHICAL challenge: it changes WHICH places have economic value, WHICH places must change their economic base, WHICH populations benefit + WHICH bear the cost.

The phrase 'JUST TRANSITION' (used by the ILO, UN, EU + many governments) recognises that the energy transition cannot be successful unless it addresses fairness:

Between RICH + POOR countries.
Between HIGH + LOW emitters.
Between current + future generations.
Between fossil-fuel workers + new green-economy workers.
Between energy-rich exporters + import-dependent countries.

This essay examines the geographic challenges + opportunities of making the energy transition global + just.

The scale of the challenge.

World energy demand ~600 EJ/year (2024) + still growing ~1-2%/year.
~80% currently from fossil fuels (coal 27%, oil 31%, gas 24%).
~13% from renewables (mainly hydro 7%, wind 3%, solar 2%, bio 1%).
~4% nuclear.
To meet Paris 1.5°C target: must replace nearly all fossil-fuel-based energy by ~2050 + simultaneously meet rising demand from emerging economies.

Geographic challenge 1: HIC vs Emerging-economy responsibilities.

HICs have produced ~75% of historical emissions but ~17% of current population. Emerging economies are increasing emissions BUT per-capita levels are still far below HIC norms. Question: how to share the remaining 'carbon budget'?

USA per-capita emissions ~15 tonnes CO₂/yr.
China ~8 tonnes.
India ~2 tonnes.
Sub-Saharan Africa ~1 tonne.

The 'CLIMATE JUSTICE' argument: HICs should decarbonise FAST + transfer technology + finance to emerging economies to support their transition. Paris Agreement included a US$100bn/year climate finance pledge from HICs to LICs — partially fulfilled.

Geographic challenge 2: Fossil-fuel-dependent regions face economic collapse.

Regions whose economies depend on fossil fuels face existential transition risk:

Coal regions: Appalachia (USA), Silesia (Poland), Shanxi (China), South Wales (UK historic). Communities have already faced post-coal decline; experience suggests retraining + investment programmes are essential to prevent population collapse + opioid epidemics (Appalachia model).
Oil-dependent states: Saudi Arabia (oil ~70% government revenue), Russia (~50%), UAE, Nigeria, Venezuela. Need to diversify economies before transition completes.
Australia / Indonesia / South Africa: major coal + LNG exporters with stranded-asset risk.

Just transition implications: governments need to invest in RE-SKILLING + ECONOMIC DIVERSIFICATION in fossil-fuel regions. Germany committed €40bn for coal region transition (2020).

Geographic challenge 3: Renewables require different geography.

The new energy system has DIFFERENT GEOGRAPHIC PATTERNS than the old:

Solar: best in sunny low-latitude regions (Sahara, Middle East, India, Mexico, US Southwest, Australia). Could turn currently poor desert regions into energy exporters (Morocco's NOOR solar plant; Saudi NEOM).
Wind: best in coastal + plains (Denmark, UK North Sea, US Midwest, Chinese Inner Mongolia, Patagonia).
Hydropower: requires mountains + rainfall (Iceland, Norway, Brazil, Bhutan, China).
Geothermal: requires tectonic activity (Iceland, Kenya, Indonesia, New Zealand).
Critical minerals: lithium (Chile, Australia), cobalt (DRC), copper (Chile, Peru), rare earths (China dominates). New geography of resource extraction with its own justice + environmental concerns.

Some places GAIN: sunny deserts may become valuable + connected; mineral-rich regions get investment. Some LOSE: oil-rich regions face decline.

Geographic challenge 4: Energy poverty + access.

~770 million people globally have no electricity access (mostly sub-Saharan Africa + South Asia).
~2.6bn lack clean cooking facilities.
These populations need ENERGY GROWTH for development — schools, hospitals, lighting, refrigeration, productive use.

A just transition cannot mean denying energy access to those who have NONE — it means leapfrogging fossil-fuel infrastructure to renewables.

M-KOPA Kenya: ~3m off-grid solar systems sold.
Rwanda: rural electrification through mini-grids + solar.
India: massive solar push helping rural electrification (Saubhagya scheme reached ~26m households).

But Africa still receives <2% of global renewable investment — a major injustice.

Geographic opportunity 1: Renewable abundance changes the energy map.

Solar + wind are GEOGRAPHICALLY ABUNDANT compared with fossil fuels. The amount of solar energy hitting Earth in 1 hour exceeds global annual energy demand. Wind, hydro, geothermal also abundant. The transition is about INFRASTRUCTURE not RESOURCE — meaning more regions can be 'energy-rich'.

This DECONCENTRATES energy geopolitics. The world becomes less dependent on the Persian Gulf + Russia for energy security. Many countries can produce more of their own energy.

Geographic opportunity 2: Industrial + technology leadership.

The renewable industries — solar manufacturing, wind turbines, batteries, EVs, hydrogen — represent the largest new industrial sectors of the 21st century.

China dominates solar (80% global manufacturing), EVs (60% of global production), batteries (75%).
EU leads wind turbine manufacturing + hydrogen R&D.
USA leads in EV technology (Tesla) + battery innovation.
Japan + Korea strong in batteries + hydrogen.

Countries that develop renewable industries gain economic advantage. India + Vietnam + Brazil are seeking to enter these supply chains.

Geographic opportunity 3: New jobs.

IEA estimates renewable energy already employs ~14 million people globally + could employ ~30-40 million by 2030 — replacing fossil-fuel jobs + creating net additional employment. Solar installation + wind operation are LABOUR-INTENSIVE compared with capital-intensive fossil plants. The transition could create more jobs than it destroys — IF re-training + regional investment occur.

Geographic opportunity 4: Co-benefits.

The energy transition has CO-BENEFITS beyond climate:

Air quality: ~7 million premature deaths/year from air pollution (WHO); renewables eliminate this.
Energy security: less reliance on volatile oil + gas imports.
Health: outdoor + indoor air pollution major killer.
Equity: distributed solar can power villages cheaper than centralised grids.

Geographic challenge 5: Pace + scale.

The IEA's NZE 2050 scenario requires:

US $4 trillion/year investment in clean energy by 2030 (vs ~US$ 2 trillion in 2024).
Tripling renewable capacity globally by 2030.
Doubling energy efficiency improvement rate.
~95% of electricity from low-carbon sources by 2050.
~50% of all light vehicles electric by 2030.

This pace is HISTORICALLY UNPRECEDENTED. Past energy transitions (wood → coal in 19th century, coal → oil in 20th century) took 60-80 years. We have 30 years to do it again — at much larger scale + driven by policy rather than market.

Geographic challenge 6: Climate impacts during the transition.

Climate change is already raising temperatures, drought, flood + sea-level pressure. The energy transition must occur WHILE these impacts are accumulating — making the task harder + more urgent.

Synthesis.

A truly JUST + GLOBAL energy transition requires:

HIC leadership — fast decarbonisation + technology transfer.
Emerging-economy support — climate finance + renewable investment in India / China / Africa.
Fossil-fuel region transition — re-training + economic diversification.
Energy access for the poor — distributed solar in Africa + South Asia.
Critical minerals supply chains — managing extraction in DRC / Chile / China sustainably.
Just employment transition — protecting workers in declining + growing sectors.
Carbon pricing + policy — aligning markets with climate goals.
International cooperation — Paris Agreement implementation + COP processes.

The energy transition is BOTH the greatest CHALLENGE of the 21st century (scale, pace, equity) AND the greatest OPPORTUNITY (new industries, jobs, security, health). Geographic thinking is central — different places face different challenges + opportunities, + the transition's outcome will depend on managing these differences fairly.

Judgement.

The transition WILL HAPPEN — economic forces (renewable cost decline) + political pressure (climate impacts) make it inevitable. The question is whether it will happen FAST ENOUGH to limit warming to 1.5-2°C + FAIRLY ENOUGH to maintain political support. Pearson 4GE1 students should grasp that the energy transition is not just a TECHNICAL challenge but a profoundly POLITICAL + GEOGRAPHIC one — one of the great human projects of their generation.

Changes in energy demand and production

Detailed Study Notes

At a glance

What you’ll learn

Quick recap

Memorise this

How it’s examined

Take this whole topic with you

1Current global energy demand

2Why HIC energy demand is stable / falling

3China's energy growth

4Per-capita energy gulf

5India as next major energy growth source

6Will demand growth be met by fossil or renewable?

Primary energy

Final energy

Exajoule (EJ)

Million tonnes of oil equivalent (Mtoe)

Energy mix

Decoupling

Energy intensity (of GDP)

International Energy Agency (IEA)

BP Statistical Review of World Energy

Energy transition

Just transition

Energy security

Energy poverty

IEA Stated Policies Scenario (STEPS)

✕Mixing up energy units (kWh, GJ, Mtoe, EJ)

✕Treating energy as just fossil fuels

✕Generic answers without country/figure

✕Treating China only as a coal user

✕Treating all emerging economies as the same

✕Over-claiming HIC decoupling

Changes in energy demand and production

Detailed Study Notes

At a glance

What you’ll learn

Quick recap

Memorise this

How it’s examined

Take this whole topic with you

1Current global energy demand

2Why HIC energy demand is stable / falling

3China's energy growth

4Per-capita energy gulf

5India as next major energy growth source

6Will demand growth be met by fossil or renewable?

Primary energy

Final energy

Exajoule (EJ)

Million tonnes of oil equivalent (Mtoe)

Energy mix

Decoupling

Energy intensity (of GDP)

International Energy Agency (IEA)

BP Statistical Review of World Energy

Energy transition

Just transition

Energy security

Energy poverty