A harbour electricity network uses tidal-stream generators. A generator powered by stored bio-fuel is available as backup. The operator prepares an operating plan for the following year.
Which statement about the operating plan is correct?
Tide forecasts allow tidal generation to be increased to match periods of high electricity demand.
Tidal generation should be used for unexpected increases in demand instead of the bio-fuel generator.
The bio-fuel generator is unsuitable as backup because bio-fuel is a renewable resource.
Tide forecasts can identify when stored bio-fuel may be needed to cover gaps in tidal generation.
86 exam-style questions on AQA GCSE Physics 1.3 National and global energy resources, covering 1.3 National and global energy resources. Each one has a worked solution and a mark scheme showing where the marks go.