Q4 2013 summary: 10% cooler, 22% more usage and 10% more sun as compared to Q4 2012.
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 Q4 last year our total usage was 1,599 kWh. This year is was 1,957 kWh, a 22% increase. Despite snow covering the collectors for a few days and cloudy weather, we still produced 10% more energy in Q4.
Overall, here’s how this quarter and the year compare to 2012.
Pie chart of energy usage by circuit 2013Stacked bar chart of energy usage by month 2013Chart of monthly temperature ranges 2013Chart of temperature buckets with ASHP usage overlay 2013Chart of water usage 2013Read more...
