Question

The sun's energy reaches Earth in the form of photons. This energy can be converted into electricity or heat. Solar collectors are already used successfully by energy companies and homeowners to produce electricity. New technological advances have increased efficiency of solar collectors by concentrating solar power using ________________.

Answer 1

The sun's energy reaches Earth in the form of photons. This energy can be converted into electricity or heat. Solar collectors are already used successfully by energy companies and homeowners to produce electricity. New technological advances have increased efficiency of solar collectors by concentrating solar power using solar cells

Answer 2

They are using PV (photovoltaic cells) and mirrors to concentrate the photons into a single spot to heat water into steam and produce electricity.