電力

Artificial light is produced by means of electricity

The river furnishes electric power to the town

This dam supplies us with water and electricity

This power station alone provides several cities with electricity

This machine consumes 10% of all the power we use

Our college uses far too much electricity

He turns off the lights so as not to waste electricity

The output power of a one square meter solar panel is about one watt, so it is difficult to use solar power on a large scale at present