Wmc the £20,000 i quoted on the “off topic” section was relating to air source heat pump, solar and battery storage. For solar and battery storage, in my situation, i was looking at £10,000ish for battery and solar. I have changed my thinking slightly in that i am going for more battery storage than i had previously with a Fogstar 45kwh system together with a 4kwh solar array.
(The process I’m going through has been a nightmare but i will detail that on the off-topic section)
So as it stands just now for solar you can get 15p per kwh for solar generation. I intend to send all of my solar to the grid so lets say my 4kwh system generates 3.5kwh that’s 3500x15p=£525 per year. To decide if this is worth your while you would need to get quotes on your specific install cost to see if the numbers make sense.
The Fogstar battery i am using, or intend to use, is 45kwh in total, 3 x 15kwh and these come in at £2,500 each so £2,000 without VAT. So £6,000 plus install, lets say £1,000.
Fill up battery @ 7.5p per kwh on overnight cheap rate .075x45x365=£1,235 for the year. Sell back to the grid what you don’t use @15p per kwh for a profit of 7.5p per kwh. Most UK houses run on about 10kwh per day so .075px10x365=£273, so a profit of 0.075x35x365=£958 per year.
I am lying in bed with a virus so my heads not 100% so please check the math to see if I’m wrong.
Every house is slightly different so you need to do your own math and if course things can change at any time so nothing is guaranteed.
The only person who got all his work done by Friday was Robinson Crusoe.
Anything i post over three lines long please assume it is an article lol.