Solar power is available all year round, it even works on hazy and overcast days. The efficiency however is higher and more savings can be made from March until September. During the winter season the system will still be able to provide heat to supplement the primary heat source and thereby reducing the running cost of the boiler or heat pump. Heating water is the second largest energy use in typical households.
Solar panels are the most common and affordable form of alternative energy available. There are grants available now for homes (built before 2006) and business, so it makes sense to invest. Solar has a fast payback period, has little or no running costs and will greatly increase your BER. Considering that fuel costs will continue to rise in the years ahead, investing in a solar heating system can be viewed as a genuine investment in the future.
Hot water from the sun, in Ireland?
Believe it or not, one square metre on your roof receives the equivalent of approx 100 litres of oil in free solar energy per year. A solar water heater produces hot water by transforming sunlight into heat through its solar panels. That heat is then stored in a large hot water cylinder so that it is available when you need it.
What if the sun is not shining?
A solar water heater not only converts direct sunlight but also indirect sunlight into heat, so it works even when the sky is overcast. There will be less solar heat available during the winter, but a back-up heater will boost the water temperature. The result is 100% comfort at all times, with plenty of hot water for a fraction of the cost.
Is my house suitable?
A solar water heater can suit most situations. All you need is:
-
space to put the solar panels (generally on the roof ) and room for the storage cylinder in your utility room or hot press.
-
access to the sun for the panels (orientated between south-east and south-west) and no over-shadowing by trees or other buildings.
What type of solar panel should I choose?
There are two types of solar collectors available in Ireland, Solar Flat Plate Panels and Evacuated tube. The way they work is much the same, energy from the sun is used to heat water and this is stored in a well insulated storage tank. It is important to do your research and make the correct choice.
Solar Flat Plate Panels
-
Solar panels are flat and look a little like roof windows. Can be integrated into roof or fixed on top of roof.
-
Solar panels harness the free energy from the sun and use it to provide up to 60% of your domestic hot water for free.
-
Reduces energy costs.
-
Easily fitted to new and existing houses.
Evacuated Tubes
-
Evacuated tube collectors consist of a number of tubes and are fixed on top of the roof.
-
Evacuated tubes are more efficient than flat plate panels. Can provide up to 70% of your domestic hot water for free.
-
They take up less space, however, they are more expensive that flat plate. The installation costs will be roughly the same.
-
Reduces energy costs.
-
Easily fitted to new and existing houses.
For more information please contact us