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Tuesday, May 18, 2010
Energy Use Update
Just a really quick update. Another power bill arrived and the period for March 15th to May 14th was 25% lower than the same period last year. It takes a while to see a complete ROI (return on investment) for insulation and window purchases, but I think it's pretty reassuring to see some savings every month, even when the weather and outside temperature was improving!
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