An introduction to energy resources: Energy resources: Figure 1.8 The roof of this petrol station in London has a large array of solar cells that convert solar radiation directly into electricity. This provides enough electricity to power the petrol pumps and lights.

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Figure 1.8 The roof of this petrol station in London has a large array of solar cells that convert solar radiation directly into electricity. This provides enough electricity to power the petrol pumps and lights.

3.1 Solar radiation

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