The benefits of solar electricity

There are a number of benefits that come with installing a solar PV system, not least of which is being able to earn £560 a year through your bill savings and the Feed-In Tariff.

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  • Reduce your electricity bills: A typical home PV system can produce around 50 percent of the electricity used by an average household in a year. Because this is free to you, you can save around £140 a year on your bills, more as energy prices rise.
  • 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 PV system could save around 1 tonne of CO2 per year – that’s around 25 tonnes over its lifetime.
  • Money for the electricity you generate: Under the FIT scheme you can be paid a Generation Tariff of 14.90p/kWh, which adds up to a payment of around £370 a year for the average household.
  • 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 it back to the Grid and make 4.64p/kWh, paying the average home £50 a year. Find out more about the Feed-in-Tariff here.
  • A safe investment: The Government have guaranteed the Feed-In Tariff for 20 years and your tariff rate is fixed when you sign up. It is also index linked so that it retains its value

What to do next?

Calculate how much electricity you can generate!


Will my roof be strong enough to take a solar PV system?
Check this with your installation company as he should be able to confirm when the survey is completed prior to installation (they must do this before starting any installation). The majority is roofs are strong enough to take the weight of solar panels but should you need any extra reinforcement, you should factor this extra into your calculations and payback.
Do I need to inform my electricity supplier when I get solar PV panels installed?
For systems below 4kW peak power your installer will inform them once the installation is complete. In the unlikely event that your system is larger than 4kW you will require permission in advance from your network operator.
How much can you be paid for electricity you produce using a solar PV system?
The Feed in Tariff scheme currently pays up to 15.44p/kWh for all the electricity your system generates even if used in your property. You will also be paid 4.5p/kWh for each unit of electricity you produce and don't use as it can be exported back to the Grid. See our Feed in Tariff tables for further details.
What is the difference between monocrystalline and polycrystalline PV panels?
Firstly, they look different - polycrystalline wafer has a dark blue colour, whereas monocrystalline wafer is black. Monocrystalline panels tend to be slightly more expensive and efficient than polycrystalline panels,
What guarantees do solar PV panels come with?
It does vary from manufacturer to manufacturer but typically Solar PV panels will come with an output guarantee in the region of 20 and 25 years. The Inverter will have a shorter life, and your should budget to have this replaced once during the life of your system (25 years or more) and therefore has a shorter guarantee, typically around 5 years. The labour guarantee will depend on your installer and your should ask or study the fine print in your quote; 5 years is fairly typical.
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