.....for one 24 hour period last week, we used only 6 cents of grid electricity without changing our behaviour. Very impressive!
I just wanted to say that throughout all of the works your team has been very professional, polite, and pleasant. I can't remember all their names but José was the person I spoke to most of the time. Anyway, thanks to them all for their work. Also thanks to you for your patience in answering all of my questions and arranging everything.
We were very impressed with how fast clean and tidy your men were and what a marvelous job they made they are a credit to your company and would recommend you to all our friends.
We thought you would appreciate some feedback. Our system is working better than we hoped for. We are using no additional means, i.e. electricity, to heat water. We look forward to our next electricity bill!