As a source of energy, nothing matches the
sun. It out-powers anything that human
technology could ever produce. Only a small fraction
of the sun’s power output strikes the Earth, but even
that provides 10,000 times as much as all the commercial
energy that humans use on the planet.
Why is solar energy important?
For a long-term,
sustainable
energy source,
solar power . . .
far exceeds any
conceivable
future energy
demands.