It’s been said that “it doesn’t cost the earth to save the planet.” If we all changed parts of our lives, from simply turning off appliances were not using to installing a solar hot water system we could reduce CO2 emissions and really make a difference.
When it comes to Solar Water Heating Systems, technology is well developed and there is a large choice of equipment that will suit many different applications. As well as providing you with a third of your hot water needs; a Solar Water Heating System can reduce CO2 emissions by up to 400kg, which is £40 a year of your hot water bill.
Solar Water Heating Systems can be used in your home or for larger appliances such as swimming pools. If installed correctly, they require hardly any maintenance and can even add value to your home.
In the UK the government is pushing more and more for everyone to become environmentally friendly and more people are becoming aware of the benefits of Solar water Heating.
There are three main components to a domestic Solar Water Heating System:
o Solar Panels – these are fitted to your roof and collect heat from the suns radiation. There are two main types of solar panels, the first being flat panels, which have an absorber plate with a transparent cover to collect the suns heat. The second is evacuated tube systems, which is a row of glass tubes that contain absorber plates that feed into a manifold where heated fluid is transported.
o A Heat Transfer System – collected heat is transferred to heat water
o A Hot Water Cylinder – stores hot water that is heated during the day and supplies it for later use
A common concern surrounding Solar Water Heating Systems is what happens if there is not enough sun? A Solar Water Heating System monitors the water temperature and when this temperature becomes to low a backup system will activate to heat the water at the top of the cylinder, while solar power still pre-heats the water in the lower part of the cylinder. Even in winter a Solar Water Heating System accounts for 50% of all your water heating every year.
The average cost of a Solar Water Heating System installation is anything between £2,000 and £3,000 for a flat panel system and between £3,500 and £4,500 for an evacuated tube system. For the installation of a Solar Water Heating System it is ideal to use a south facing roof as you will receive direct sunlight for the main part of the day. You should also make sure you have adequate space for the water cylinder to be installed.
Solar Water Heating first really became popular in Florida and Southern California in the 1920’s. Then in 1967 20% of Israel’s population started using Solar energy due to a wealth of sunlight. Israel is now the world leader in the use of solar energy after a law was passed by Israeli Knesset in 1970’s following an energy cr