Watts Available

By Willis Eschenbach – Re-Blogged From WUWT

I ponder curious things. I got to thinking about available solar energy. That’s the amount of solar energy that remains after reflection losses.

Just under a third (~ 30%) of the incoming sunshine is reflected back into space by a combination of the clouds, the aerosols in the atmosphere, and the surface. What’s left is the solar energy that actually makes it in to warm up and power our entire planet. In this post, for shorthand I’ll call that the “available energy”, because … well, because that’s basically all of the energy we have available to run the entire circus.

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