The aim is to enable solar-powered households to sell surplus electricity back to energy companies.
The government has promised £10 million to back the use of photovoltaics in the UK, and supports the plans for use of 'smart' meters to divert unused electricity back to the national grid.
Test households in Pickets Lock, London generate 60% of their electricity through solar power.
Click the link below for more on photovoltaics.
Source
Building Sustainable Design