As one who is very climate concerned and with solar panels already on my barn roof, I was interested in Powerwall batteries as back-up power instead of a noisy fossil-fueled generator. Maine Solar Solution s field engineer, Aaron, returned my call and immediately impressed me with his broad understanding of what the batteries could do, but also their limitations and how the power was handled between panels, house, grid and battery. I decided to purchase and the install day arrived sooner than predicted. Two young electricians set to the task; I looked on and asked many questions but these friendly chaps were happy to answer questions and even did a few things above beyond what was required. The work was completed in 1 1/2 days and all was tidied up better than they found it. And when the invoice arrived there were no surprise charges. This company is first rate in my experience.