You might want to give Michael Kender in Belmont a call at 603-387-4660, or drop him an email at
Michael@timberhawkcarpentry.com
His workshop was just built two years ago and is totally off grid. Here's a link;
Timberhawkcarpentry.com
Also, NH Business Review did an article on his operation this past Spring titled "The Energy Storage Moment" but unfortunately their website doesn't seem to be working right now.