My wife and I were living in Seattle in 2016 and had planned to move to Grafton and build a new home with the intention of installing solar and eventually storage.  We researched solar contractors in the area and Arch popped up with great reviews all around.  We made a call to Mike and then met with Ed, both of whom are top professionals in their field.  We built our house and had a 4.55kW solar system installed in 2017.  Then in August of 2020, we installed an additional 1.05kW of solar and added a Tesla PowerWall and the Lumin load shedding unit.  Steve from Arch installed the Lumin and PowerWall with a high degree of technical expertise, and all the workmanship by the Arch staff was professional and well done.  We were particularly pleased with the attention to quality and adherence to schedule.  As fairly technical individuals, we appreciate the intricacies of electrical systems, and Steve knew exactly how everything needed to go together to provide the solution we were looking for.  We would highly recommend Arch for Solar and Energy Storage.  They are definitely the Experts.