About Solar Themal
Solar Thermal 
Solar Hot Water systems are one of the most established renewable technologies available today. You can create 50%-70% of your property's hot water during the year.
Solar Hot Water Systems or Solar Thermal Systems convert light into heat to warm domestic hot water. A conventional boiler or immersion heater is then used to make the water hotter, or to provide hot water when solar energy is unavailable.
There are two different types of solar thermal systems, the flat plate and the evacuated tube. The flat plate uses a black coated surface to absorb and contain as much of the Sun's radiation to maximise the hot water generation. The evacuated tube uses a vacuum filled glass tube to enclose each individual pipe, this reduces the heat loses making this method more efficient.
The system works all year round, though you'll need to heat the water further with a boiler or immersion heater during the winter months.