Bill, good point! The most extreme day you are likely to see is the one you have to size for. The further that day falls from the average for it's month, the more shortfall you have if only using degree days to size.
Buffering helps, but how much? Steve, about how much water did you use, and about how much buffering does it give you?
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"I‘d put my money on the sun and solar energy. What a source of power! I hope we don‘t have to
wait until oil and coal run out before we tackle that." Thomas Edison, 1847 — 1931
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