??? Who asked you to? I guess you're unaware that hydroelectric generators depend on solar energy? And that the energy in coal and oil came from the Sun. And that it's not an either-or choice. And that the Sun shines all the time, just not on your spot? And that energy can be stored? I assume you're switching to nuclear.


On 1/12/2013 2:35 AM, Roger Clough wrote:
The unpredictability of solar energy
I've lost the page ref for the graph below, but it's typical
of numerous other graphs of the daily variation in solar energy on the internet.
(For a comparison see solar variations on
The hourly variation would be much worse, since the sun does not shine at night.
The variation from day to day is unpredicatable and enormous,
going from near 0 Ly to almost 100 Ly. This is probably due to variable
cloud cover, not auto exhaust emissions.
I'll stay with conventional electric power, thank you very much.
*Ly. *Langley, a measurement of solar energy. One langley is equal to one gram-calorie per square centimeter. A gram-calorie is the amount of heat required to raise the temperature of one gram of water one degree Celsius.

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