Replenishable Energy gave me confidence from the start that they knew what they were doing and I was in good hands. I am perhaps a little disappointed in the final cost and performance, mainly due to shading issues. The installation was a bit problematic and the Inverter could not go where I wanted it to. After the installation was completed there were a few hitches with wireless connection and a few other things and the Electrician and office staff were very helpful and we got it sorted out.