First quarter 2018 performance

Q1 2018 summary: 4% colder, 3% less usage and 13% less sun as compared to Q1 2017.

This is part of our quarterly home performance reporting. All data is posted at netplusdesign.com

I said it last year and I’ll say it again, it was a whacky winter. Lots of cold days, but also lots of warm days. It would be warm for a week or two, the ground would thaw, then we’d get snow.

We recorded a low of -17.1 on January 7, close to our lowest recorded temperature of -17.3°F on February 14, 2016. Our high was 77.6, higher than the 73.6°F last year. In 2012 we recorded a high of 82.4°F in the same period.

Overall, here’s how this quarter compared to 2017.

Q1 Comparison 2017-2018

2017	Usage	Solar PV	Net usage or (surplus)	Avg. daily usage	HDD
Total	2,710	1,586	1,123	30.1	3,056
Jan	1,035	357	678	33.4	1,086
Feb	783	478	305	28.0	890
Mar	892	752	141	28.8	1,079

All values in kWh (except HDD which is base 65°F).

2018	Usage	Solar PV	Net usage or (surplus)	Avg. daily usage	HDD
Total	2,640	1,375	1,265	29.3	3,173
Jan	1,093	375	718	35.3	1,294
Feb	768	399	368	27.4	894
Mar	780	602	178	25.2	985

You can see heat maps and detailed charts of temperature and electrical usage at netplusdesign.com. View hourly, daily and monthly values for solar, usage, net usage, temperatures and HDD.