Thursday, May 14, 2009

Cost Comparison of PV Array 2007-2008

The 2008 True-up bill has been calculated for our electricity use. It is higher than last year, as anticipated. I think this is due to the pond pump running extra for a few months. And we have been home more this year. The pump is bound to be a continuing factor, but since we are now generating more each day, it may not make that much difference in the long run.

Our electricity cost has gone up from 4 cents per KWh in 2007, to 5 cents per KWh in 2008. This is based on increase use, and potentially a bit lower production due to the system being down for a few days to move the panels. The base rate for residential customers around here is around 15 cents per KWh.

In 2007, our total cost for electricity including all fees and taxes was $90.39. The total cost for electricity use that we did not generate was $17.78.

In 2008, our total bill for the year was $125.36 and of that $19.95 was for electricity we used but did not generate.


  1. Wow, I could actually look forward to getting an electric bill like that!

  2. t can be fun,especially watching the meter run backwards.