The tariff levels set out above apply to systems installed before April 2012. Systems installed after this will be subject to new lower tariff rates: The government proposes that the model incorporates annual ‘degression’ whereby the tariff level will reduce by a fixed percentage for systems installed in the future. Generators will continue to receive the same tariff rate for the 20 year period (25 years for Solar PV) as they did upon installation.
Is your roof:
If your home fulfills these criteria then you may be eligible for the installation of a free solar electricity system.