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Work through the notes, try the practice questions, then take the quiz. The report tells you exactly what to revise next. (2026)
Question
Evaluate the use of onshore wind farms vs natural-gas power stations for UK electricity generation. (6 marks)
Solution
State 2 strengths of wind.
State 1 weakness of wind.
State 2 strengths of gas.
State 1 weakness of gas.
Reach a judgement.
Answer
Top-band model: wind = zero-carbon, no fuel costs, UK-controlled, but unreliable. Gas = dispatchable and uses existing pipelines, but emits CO₂ and depends on imports. Overall, wind is the long-term winner for meeting climate targets; gas plays a transitional role.
Examiner note
AQA 6-mark answers reward 3+ relevant points on each side with a clear, justified judgement. Quote real numbers/dates for credit.
Question
A student says nuclear is a renewable energy resource because it produces no CO₂. Explain whether this is correct.
Solution
Define renewable.
Apply to nuclear.
Address the student's point.
Answer
Incorrect. Renewable refers to the supply — uranium is finite and will run out, so nuclear is non-renewable. The student is confusing 'renewable' with 'low-carbon'.
An energy resource that is replenished naturally and will not run out on a human timescale (e.g. wind, solar, hydro).
An energy resource that exists in a fixed amount and is being used much faster than it forms (coal, oil, gas, uranium).
Available whenever electricity is needed (e.g. gas, nuclear). Unreliable sources (wind, solar) depend on weather.
Emits no net CO₂ over the full life cycle. Biomass can be carbon-neutral IF the plants are regrown to absorb the CO₂ released by burning.
Mistake
Calling nuclear renewable.
Why it happens
Confusing 'low carbon' with 'renewable'.
How to avoid it
Renewable = won't run out. Uranium is mined; it will eventually run out. Therefore non-renewable.
Source: AQA Paper 1 Examiner Report 2023.
Mistake
Listing pros and cons but not reaching a judgement.
Why it happens
Students think 'evaluate' means 'compare'.
How to avoid it
AQA 'evaluate' = compare AND conclude with a justified judgement.
Mistake
Writing 'a lot' or 'mostly' without UK figures.
Why it happens
Students don't memorise key statistics.
How to avoid it
Memorise UK figures: gas ~33 %, wind ~28 %, nuclear ~14 % for the 2023 mix.