Solar Panels Generates Electricity From Daylight
Photovoltaic panels (or solar pv panels) produce electricity from daylight not direct sunlight, so they still produce energy on cloudy or overcast days. The electricity produced can be used in the home or export to the national grid.
Most domestic households install a system between 2-3kWp, generating between 1,700-2,500 kWh (units) per annum. The largest domestic system allowed under the Feed-In-Tariff scheme is 4kWp.
You will need to consider the following factors:
In England, the permitted development rights for domestic renewable technologies mean that solar pv does not require planning permission, as long as they meet certain size criteria. Exceptions apply for installations on flat roofs, Listed Buildings and buildings in Conservation Areas and World Heritage Sites.
Make sure you inform your building insurance company of your installation. This should not increase your premiums but check first with your building insurance company.
Your roof should ideally face south at a pitched angle of 30-40% from the horizontal to give the best performance. East or west facing roofs can provide upto 85 per cent of this optimal performance.
A roof area of around 20m² would be sufficient to deliver around 50 per cent of a typical household’s electricity requirements.
Any shading on a single module will affect the performance of the whole system as all the modules are connected. Nearby trees, chimneys, TV aerials and vent pipes are all common causes of shading.
There are different options depending if you want the panels integrated into your roof, in which case you could use solar roof tiles (perfect if you are re-roofing) or want the system as a retrofit roof-mounted installation.
Solar PV panels benefit from the government’s Feed-In-Tariff scheme which was launched in April 2010. The scheme is guaranteed for 25 years.
For a domestic solar panels system installed from 1st April 2011 43.3p is paid for every unit of electricity produced and any electricity which is surplus and is exported back to the national grid will get paid an extra 3p, making it 47.3p per unit exported.
A typical household will generate a tax free income of between £800-£1,500 pa from the Feed-In-tariff. The tariff is guaranteed for 25 years and is index linked.
A typical payback period for the initial investment is in the region of 7-8 years.
You will also save on your electricity bills. A typical household could save around £200-£300 per annum on their electricity bills.
As you get paid for the solar panels electricity you use, it is more cost effective therefore to use your electricity during the daytime, rather than at night time when the solar pv system is not generating any electricity.
Therefore you should reorganise your domestic activities during daylight hours when the solar roof panels are working at their peak. Things like setting your dishwashing and washing machines on during the daytime and doing the ironing.
Only installers approved under the Microgeneration Certification Scheme (MCS) can gain access to the Feed-In-Tariffs for their customers.
Jacob Eco Energy Ltd is the first Solar Panel Installation company in Manchester to be MCS approved (Microgeneration Certification Scheme). Only solar panels fitted by a MCS approved installer can access the payments for the Feed-In-Tariffs..
Your MCS approved installer would issue you with the necessary paperwork for you to get your solar system grid connected.
Once your solar system is grid connected, you will supply your electricity supplier, usually quarterly, the readings from your solar panel meter. You will receive a cheque for the amount generated.
Substantial reduction on your annual electricity bills. A new income to your home simply by installation! An increase the value of your home by 6-8%. Reduction of carbon emissions for your grandchildren and future generations Better return on investment than current bank deposit accounts. Typical ROI from solar panels is approximately 7%..
Further information for business, green communities, landowners, the housing industry and architects.
Jacob Eco Energy is the first solar pv panel installation company in Manchester to be MCS approved (Microgeneration Certification Scheme), and we can offer guidance and professional advice around all renewable energy sources. Find out more about Solar pv panels electricity or contact us directly for free advice now.