Doctor Evil wrote:

Also at 1K per windmill and 8K for a heat pump. Try spending 2K on two
windmills. Then 6kW instead of 3kW.

You can't get a windmill for £1k that outputs 3kW. You'd be looking at
around £30k, and it would be very tall indeed. You'd also need a very
large bank of batteries.


--
Grunff