The cost of installing a typical solar water heating system is around £3,000 to £5,000 (including VAT at 5%). Savings are moderate - the system could provide most of your hot water in the summer, but much less during colder weather. Solar thermal can pay for itself in financial terms in as little as ten years.
Solar water heating systems can achieve savings on your energy bills. Based on the results of our recent field trial, typical savings from a well-installed and properly used system are £60 per year when replacing gas heating and £70 per year when replacing electric immersion heating; however, savings will vary from user to user.