A solar thermal hot water system can provide almost all of the buildings hot water during the summer months and about 50% year round. Solar water heating works even on cloudy days

Systems costs vary due to a range of factors including size of collector, type of roof, existing hot water system and geographic location.

Typical installation costs for flat plate collectors is £2,000 - £3,000 while evacuated tube systems will cost £3,500 - £5,000.