energ y management s ys tems Permanently reducing your Energy Bills DA TA SHEET SOLAR PHOTOVOLTA IC (PV) SYS TEMS Produce your own Green Electricity Solar panel electricity systems known as Solar Photovoltaic (PV), capture the sun's energy using photovoltaic cells. These cells don't need direct sunlight to work - only light - they can still generate electricity on a cloudy day. The cells convert light into electricity, which can be used to run household appliances and lighting. Electricity can be stored (in batteries), connected to the main grid supply to be used in conjunction with the mains, or both. The benefits of Solar Electricity Cut your electricity bills: daylight is free, so once you've paid for the initial installation your electricity costs will be reduced. Off-set your electricity bills: each unit of electricity you generate will mean one less unit of electricity you have to buy from the grid. Sell electricity back to the grid: if your system is producing more electricity than you need, or when you can't use it, you can sell the surplus back to the grid. Cut your carbon footprint: solar electricity is green, renewable energy and doesn't release any harmful carbon dioxide (CO2) or other pollutants. A typical home Solar PV system could save over a tonne of CO2 per year - that's more than 30 tonnes over its lifetime. A small PV system installed by EMS which supplies power for the Ayres Visitor Centre How does Solar PV work? PV cells are made from layers of semi-conducting material, usually silicon. When light shines on the cell it creates an electric field across the layers. The stronger the sunshine, the more electricity is produced. Groups of cells are mounted together in panels or modules that can be mounted on your roof. The power of a PV cell is measured in kilowatts peak (kWp). That's the rate at which it generates energy at peak performance in full direct sunlight during the summer. EMS, PHRM Building, Hills Meadow, Douglas, Isle of Man, IM1 5EB T: 01624 613210 E: info@ems.co.im VAT No. 001 1669 26 Consultants authorised to undertake projects assisted by the Department of Economic Developments Business Support Scheme energ y management s ys tems Permanently reducing your Energy Bills DA TA SHEET EA ZY HEA T SOLAR PHOTOVOLTA IC (PV) SYS TEMS Sa vings A typical 3.6 kWp system can generate over 2,700 kilowatt hours of electricity a year - that's around three quarters of a typical household's electricity needs - and will save over a tonne of carbon dioxide every year. ** ** Source; Energy Savings Trust How electricity is measured The more electricity prices increase the greater the savings. The lifespan of Solar PV panels are typically well in excess of 25 years so once you have recouped your investment you will enjoying free electricity for many years to come. Example: a 100 hundred watt light bulb will use 1,000 watts (1 kW) in 10 hours - this would therefore equal 1 kWh (kilowatt hour). It should be born in mind that presently the MEA make an additional daily standing charge of 25.2p per day under the home generation tariff. If connecting a PV system to the MEA supply they will need to fit an additional meter to measure the amount of electricity you generate. Solar PV systems are rated in Kilowatt Peak - kWp. Electricity is charged for in Kilowatt hours - kWh. You will see on your electricity bill the number of units used / charged for in kWh’s. A Solar PV system rated at 1 kWp (1 kilowatt peak) will produce one kilowatt of electricity in one hour under optimum operating conditions. System Sizes and Applications The size of the system and how it is applied is entirely your choice - from a few watts to several thousand. You can start small and expand as required. Applications include: Solar powered remote lighting Electric gates Power for your garden or shed CCTV Street lighting Power at home The list is endless - tell us what you need and we’ll design a system for you Price & Des ign Our smallest complete “Grid Tie” system contains everything you need to start generating your own free electricity for your home and costs less than £2000. Self contained lighting kits can cost as little as £200. EMS, PHRM Building, Hills Meadow, Douglas, Isle of Man, IM1 5EB T: 01624 613210 E: info@ems.co.im VAT No. 001 1669 26 Consultants authorised to undertake projects assisted by the Department of Economic Developments Business Support Scheme