I was planning to write this post before the devastation of Japan’s nuclear power plant which has now focused people’s minds on the value of renewable energy.

My question is, how solar savvy are you? I’ve learnt quite a bit about solar power recently following a meeting with a potential client.  He is an eco builder who has invested considerably in solar panels in the hope of providing them to a company  which is planning to build a number of solar farms in East Anglia. This new industry looked very promising, thanks to the present lucrative feed in tariffs paid to producers of green energy. This, in effect, is a reward for generating your own green power and the scheme was launched by the government last April. It also pays home owners for each unit of “home grown” electricity they produce.

With payments of up to 41.3p per kilowatt-hour (kWh), feed-in-tarrifs have made domestic wind turbines and solar panels look like good investments. People installing these eligible green-energy systems receive a payment for every kWh of electritiy they produce – whether they use it or not. Payments vary depending on the size of the systems installed, with small domestic systems earning more per unit than larger installations, and power fed back into the grid earns an extra 3p per KhW. Payments are not made by the government, but funded by a levy on electricity bills. More than 22,000 households have so far signed up for feed-in-tariffss; 95% of them using PV panels. It has also been popular with farmers who have used them on agricultural buildings.

However, as a number of investors  have bought land to cover with photovoltaic panels and benefit from the tariffs, this has made the generous payment unsustainable. Last year’s spending review placed a cap of £360 million a year on feed-in-tariffs by 20-14-15. As a result, earlier this year  Chris Huhne, the energy secretary,  announced a review of tariffs for large scale solar PV schemes producing more than 50kW of power. Meanwhile, those in the solar business are anxiously holding their breath , but, according to The Guardian, early indications are  that only small domestic installations, of less than 50kW capacity – enough to cover 15 average house roofs but not a large barn roof – will be eligible for the feed-in tariffs at current rates.

They say that under the revised proposals, anything bigger than 50kW– from a farmer’s barn roof to a school building or a supermarket’s covered car park – will receive much smaller subsidies, allowing a rate of return of about 5% rather than the 12% envisaged for smaller projects. This is clearly not welcome news for them.

Those who have joined the scheme are able to continue receiving payments at the agreed rate, with adjustments for inflation, for the duration of the scheme (25 years for PV). Green energy enthusiasts are being urged to go solar sooner rather than later to benefit from the present scheme. There are grave concerns, however, that the investment, energy and new jobs which resulted from the launch of feed-in-tariffs could now be in jeopardy and confidence in the scheme is waning.

In the meantime, solar farms have been given the go-ahead in Cornwall and support is evident north of the border where the Scottish Government has set a target for 80 per cent of Scottish electricity consumption to come from renewables by 2020. A series of workshops are planned in schools to help promote the benefits of renewable energy sources, such as solar panels.

A show of government support is desperately needed by our government too. Who remembers David Cameron urging the electorate to “vote blue, go green’?