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  domestic hot water
Generating domestic hot water (DHW) from solar panels has moved into the mainstream. We can supply systems to heat most of your DHW for approximately 4 months of the year, in the remaining 8 months the incoming water will be heated to varying degrees by the system, so that even in winter the incoming 10degree water will be preheated to perhaps 30degrees before its topped off by the boiler/immersion. These savings make a significant improvement to your fuel bills. Importantly modern systems do not need direct sunlight, they will still be heating water on cloudy days.

Power costs have been increasing at about 10% annually, with our reliance on imported Gas from Russia and the Middle east, this is unlikely to change. Once funded a solar system runs on a 40watt pump. If we assume that the solar system provides about 65% of a households water and an equivalent cost of 15p/kWh. The annual Hot Water cost is 635 for a house with 150 Litre tank (at 65% solar produced that is a saving of 412/annum). So with a 10% increase / annum we are looking at 6-7 year payback. This has been further improved by the Government backed Renewable Heat Incentive scheme which was introduced in early 2015. This pays a fixed income of 19.2p for every kilowatt hour of heat produced over a period of 7 years.

There are a number of systems available, either Heat Tube collectors or Flatplate collectors. They are either installed over the top of the slates/tiles or the flatplate collectors can be mounted into the roof itself. This eliminates the need for slates/tiles on a new build or refurbished roof etc.

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