You've purchased electricity, you've just sold more back.I watched the video and I am not sure I agree with him regarding off grid versus grid tied. I put in 6 kw of grid tied solar several years ago and have not purchased electricity in over 8 years. I charge two EV's and run my main house and the guest house off of the system. The guest house is all electric. I use more than I produce the coldest three months of the year but during the rest of the year I generate more than I use and generally get a check form the utility at the end of the year for about $100. Also there is a lot of green energy prodution in the area where I am so all around it pretty good and a lot less expensive than his system Below is a picture of my system and the Wind farms over the hill form me
Less than 2 years in, have had my inverter replaced already. Not a horrible problem, but had to wait a week for shipping while the sun was shining. Something to ensure you have written answers on should you be negotiating with an installer............I have had my system 8 years. People think it’s the panels that fail, but it is the inverters. I believe it is cheap capacitors from China. I had to replace my inverters last summer. New inverters are much more sophisticated with instantaneous monitoring. They really should last 25 years, but it really depends on the quality of the construction and the components
The newer tech is microinverters, so there is one for every panel. That way if one of them goes down, the whole system doesn't go down with it.Less than 2 years in, have had my inverter replaced already. Not a horrible problem, but had to wait a week for shipping while the sun was shining. Something to ensure you have written answers on should you be negotiating with an installer............
That makes perfect sense and sounds awesome. Something to discuss next time I chat with them......The newer tech is microinverters, so there is one for every panel. That way if one of them goes down, the whole system doesn't go down with it.