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Solar panels

Solar thermal, wood heating and ground systems aren't new to the market, but until the recent increases in fossil fuel prices most people weren't choosing them over oil, natural gas or electricity to heat their homes or businesses. Now, advances in technology and government subsidies and high fossil fuel prices are helping to change that.

Solar Water Heating uses the radiation from the sun to heat water in a panel usually sited on the roof which in turn can supply that heat as hot water or to a central heating system. Solar water heating can be used in the home or for larger applications. For a domestic system you will need 3-4 square metres of southeast to southwest facing roof receiving direct sunlight for the main part of the day. You'll also need space to locate an additional water cylinder if required.


If the system has been sized correctly, it can provide at least 40-60% of all your hot water requirements throughout the year. The average domestic system reduces carbon dioxide emissions by around 400kg per year.

Solar Water Heating should not be confused with generating electricity from the sun or photovoltaics (PV) in which solar power is used to directly generate electricity which can be used in the home or fed into the National Grid.

Regen (ni) offers solar water systems in a number of standard sizes, with solar panels from major manufacturers.
Photovoltaic (PV) cells use light to generate electricity. ‘Photovoltaic’ is a marriage of two words: ‘photo’, meaning light, and ‘voltaic’, meaning electricity. Photovoltaic technology, the term used to describe the hardware that converts solar energy into usable power, generates electricity from light.

Solar PV cells can be arranged in panels on a building’s roof, walls, or mounted at ground level and can often directly feed electricity into the building. Groups of solar PV cells can be added together to provide increasing levels of power. This can range from small, kilowatt-sized solar panels for use in domestic households, to larger arrays, which function as separate solar power plants feeding power directly into the electricity grid. Regen (ni) offers PV systems in a number of standard sizes, with solar panels from major manufacturers, and may be specified to be connected to the grid, or used to charge a battery bank for off-grid applications, where no grid connection is available.

An ideal location would be south facing on a 30 - 40 degree angled roof, with nothing shading the panels.

ReGen (ni) offer a full design service to analyse the requirements and recommend the most efficient and cost effective solutions for your application.


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