Tag Archives: PVWatts
What’s in a Solar Production Estimate?
A potential customer contacted me a couple of weeks ago. She lives in a town with a municipal utility. She asked me about a solar array on her house. The first thing I did was pull up the satellite image. From the satellite image, you can see that the roof is nearly east/west facing. I… Read the entire post »
Sanyo Panel Performance: Real World Data
We’ve been installing Sanyo solar panels for some time. I’ve always known they were good performers. Now I have data to prove it. Here are the results for a site we have in Eastern Massachusetts. Later I’ll publish more results from other sites. The first site is pictured above. Just under three years ago we… Read the entire post »
