Have many here have been installing "power optimizers"? I recently went to do some service work at a restaurant and saw that the owner had been sold one of these units for each panel that was in the building. They were wired into the panel via a 2 pole 20A breaker, he told me that "someone down the road" had sold and installed them. He said that they were quite expensive but he would recoup the initial cost in as little as 6 months. ????