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On Wednesday, 5 October 2016 17:24:30 UTC+1, harry wrote:

In Germany when there is a surplus of power, they pay you to use (or
store) it.
You can then export power into the grid from the batteries later and get
paid.
Thus you get paid twice.
Once for importing, and once for exporting.
Now that should encourage people to install batteries thus solving the
intermittancy problem!

It hasn't a hope of solving that problem, or even making a noticeable
difference. A little basic maths will show you how unrealistic such an
idea is.


Except that it isn't mathematically unrealistic.

There is enough power in the sun for each person to collect enough power to
satisfy their own personal needs (including charging up their electric car)
if we have a means to store it across the "dark" periods of the day/year.

Ditto for the majority of companies who don't use electricity as a "raw
material" in their production.

The fact that the storage costs aren't economic, doesn't make it
mathematically impossible.

tim