Solar Thermal

[jason121]

Is solar thermal a waste of money ?
Just been doing some calculations regarding 1 x Evacuated tube collector 15 tubes and twin coil tank 180l with 96l solar storage connected to gas boiler 104m2 bungalow South facing.
Savings made £27 per year approx install cost £3300.00
payback 122 years

??????

 

[Gavin A]

it only makes financial sense in a low proportion of cases without RHI, eg electrically heated water systems, and / or where the tank needed replacing anyway.

your example is a particularly bad one though as you've only got 15 tubes on it, which is a pretty pointless amount of SWH capacity.

 

[sedgy34]

It was till the Rhi 17p kwh for 7 years