Heritage Solar is a valuable company with excellent technical credentials. They installed a large solar system at our house, and it has been working really well. I had a bid out from three different companies, and I thought Heritage had more experience in dealing with large systems. Their price was a little higher than the others, but they seem to be much more professional and are good at what they do. We have had the system installed for over five years now, and it has substantially reduced our utility bills -- much more than I had expected. I would highly recommend them to others.