If you are looking to have solar power panels installed on your home roof you should know how much expense is going to be involved. Photovoltaic technology is a long-term commitment with payback moment typically 10 years and the panels themselves lasting a minimum of 25 years.
First things first: Is the home suitable?
Before you even start getting quotes you need to find out whether or not your home is suitable. This really is relatively easy to do yourself without needing to resort to a survey, which incidentally will be done before an organization installs panels in your roof.
The most important factor will be the orientation of your roof, ideally this should be facing due south (in the northern hemisphere). To determine this you'll either need a compass or if you don't have one go onto a web site like Google Maps and type in your post code. Your street will show up and the map will be orientated to the north. You need to simply check to see if your roof is pointing south. Ideally your homes roof should face south nevertheless, you may still be able to install panels over a south-east or south-westerly facing roof.
Whilst a south facing roof can be a major factor additionally, you will need to check for shading. Throughout the day the sun arcs across the sky at some point something could come relating to the roof and the Sun. Shading may occur from other buildings or trees. You may even get some shading from lamp posts and telephone poles.
How much do solar panels cost?
It is important to understand that the cost of the panels themselves is only going to play a part in the overall cost of getting a photovoltaic system installed. There are several other bits of equipment for example an inverter which are very costly. There is also the cost of the roof mounts, cables along with other electrical equipment needed to experience a fully functioning grid tied installation. Finally there is the labour costs of actually installing the device, this usually takes a couple of days.
The size of your array will determine how much you pay. Generally the larger the array size measured in kWp the greater the cost. The higher the kWp rating the more electricity the installed system will produce for you personally. There are also other factors to think about such as the make and model of panels used, the sort of inverter used and the quality of other equipment.
A little system of around 1kWp will surely cost around 4,000 pounds in britain fully installed. For a larger system you could look around and get a system installed with a qualified and certified installer for approximately 13,000 pounds for a 4kWp system. Costs do vary, my studies have shown the cost of a 3.6kWh in britain can vary from 11,590 entirely up to 19,830 pounds. It shows that if you shop around in some instances quotes can be almost double for comparative systems.
Solar power costs can vary dramatically
My advice is that if you are going to have a solar PV system installed is that you get as many quotes as possible. You can compare the systems through the amount of electricity they're expected to produce. Solar are a wide investment and getting it right means that you will not only pay much less, in some cases 90 percent less, but also get the best equipment that will reliably produce more electricity for you personally.
Just thought you may be interested in reading this guide: solar panels cost and cost of solar panels.
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