A refrigerated warehouse needs an uninterrupted electricity supply. Its electricity demand changes during a 24-hour period.
Two possible power stations, one using waves and one using bio-fuel, each have a maximum power output of 4.5 MW. Enough bio-fuel can be stored to supply the power station for the whole period.
| Time | Electricity demand of warehouse in MW | Forecast output of wave power station in MW |
|---|---|---|
| 06:00 to 16:00 | 2.4 | 3.1 |
| 16:00 to 22:00 | 4.0 | 4.2 |
| 22:00 to 06:00 | 1.6 | 0.9 |
Explain which power station would provide the more reliable electricity supply during this 24-hour period.
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.