What is the role of solar energy in the global electricity supply today?

What role will it play in the future?

Find out in this video.

Could The World Run On Solar Power?

How does the energy we receive from the sun compare to other renewable and non-renewable forms of energy?

Find out in this video.

How much Land is needed to run the world with Solar Power?

We'll answer this question using

- a back-of-the-envelope calculation

- the results of a study carried out by a renewable energy organization

- and an estimate by the US Department of Energy for a solar-powered USA.

What would it take to power the united states with solar energy?