Question
CCEA Unit 2 Paper
Compare wind power and hydroelectric power as methods of generating electricity. In your answer, discuss reliability, environmental impact, and suitability for the UK. (6 marks)
Mark scheme (indicative — 6 marks): Wind: intermittent (depends on wind) → reliability issue (1); no greenhouse gas emissions during operation (1); visual and noise impact; large land/sea area needed (1). Hydro: very reliable and controllable / can act as pumped storage (1); flooding of valleys destroys habitats (1); limited sites in UK (though good in Scotland / NI) (1). Comparison: hydro more reliable; wind more widely deployable offshore; both emission-free in operation. (1 for reasoned comparison — credit flexible)
Award up to 6 marks for balanced, specific comparisons covering all three criteria.
Total: 6 marks.
6 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.