Talk Morgan Forums Community The Malvern Arms Is your PV solar array generating more

Bruce it really depends here on the government subsidy to produce power. The scheme was very generous but lately has reduced. So when I moved the FIT fell from 45p / kWh old system to 4p / kWh on a new system. You also get 5p /kWh for export (the power companies assume you export 50% of what you make).
The other varianble is what you buy power for , I am pay 18p /KWh but in April that will jump on contract renewal.
I also have a device to divert power to heat hot water. That has saved 2,500 kWh roughly, but we would otherwise heat water by gas which is cheaper than electricity.

My 3.9kW array cost £5,500 is Dec 2018. We have since generated 8654 KWh of power.
My estimate is roughly 6 years payback, but of course power prices will only climb & at best you can get 0.5% interest on cash.

I hope that helps a bit.
John