First year real-world solar power performance review

The first thing that people ask when I tell them that we installed a solar array on our house is: “how much did it reduce your electric bills?” Now that I’ve had a full year of utility bills, I’m going to lay out how much we’re paying now versus our historical electric bills.

Keep in mind that there are a lot of different factors at play, but there’s no doubting that the savings are substantial in spite of different weather, usage and billing rates. So let’s get to the numbers!

From August 2012 through July 2013 (my billing cycle runs from the 20th of the month), my total electric bill was $1614. Keep in mind that our house runs mostly on heat pumps, so that also includes much of my heating bill. We also have a pool, hot tub, second fridge, and freezer – we’re not living a super low-impact lifestyle, as much as I’d like to. But what we do have is all very efficient at what it does.

How do past years compare? Continue reading

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