If you remember one of our early solar posts when building the house, we initially assumed that solar was going to be too expensive for us. Then we ran the numbers and found that the rate of return was actually quite attractive over the log run.
Q2 2013 summary: 13% colder, 44% more usage and 4% less sun.
Now that we are starting to collect our second year of performance data, I’ll be comparing our new data to the same period last year. Year-over-year comparisons should be more illustrative than comparing to previous months. I’m also switching to a quarterly reporting period to look for larger trends, but I will continue to post data monthly at netplusdesign.com
In Q2 last year our total usage was 1,021 kWh. This year is was 1,468 kWh, a 44% increase. Although it feels like it had rained a lot more this year then last, we only produced 4% less energy in Q2.
Overall, here’s how the first and second quarters compare to 2012.
