Wednesday 21 October 2009

The future’s bright for home owners with solar panels?

The solar panels are cheaper than ever and you can sell your surplus energy to the grid. No wonder, the future’s bright for home owners solar panels.

Real, gutsy solar power is as rare as hen’s teeth in this country. By the real deal I mean photovoltaic (PV solar) systems that convert sunlight into electricity as opposed to rather prosaic solar thermal systems that heat water. Last year just 6MW of solar PV solar panels were installed in this country. Compare and contrast the situation in Germany, where more than 1,500MW was installed last year and one in 10 buildings has a solar power system.

This is ludicrous because solar PV could provide 30-40% of the UK’s total electricity needs by 2050, reducing CO2 emissions by 15% a year. An average domestic system (a fairly modest 1.8kWp PV system) can provide at least 25% of a household’s energy. The sticking point has been the expense.

Luckily there are sunnier days ahead. We’ve been waiting years for a Feed-in Tariff scheme (rebranded as the Clean Energy Cash Back Scheme), and now it is expected to arrive in April 2010. This will guarantee domestic PV installations 36.5 pence per kw hour of electricity they feed back into the grid, probably for around 25 years.

If plans go through, they’ll get just 36p for their surplus output and be able to enjoy the more generous tariff and possibly a grant (£10m is available until April 2010 via the governments grants programme in the form of £2,500 per households.

And you’ll be able to take advantage of the fact that solar panels have come down in price. According to Sharp, a UK-based solar-module manufacturer, units are 30% cheaper than a year ago. You can get different types to stick on or integrate into your roof, not just the traditional crystalline cells using reject silicon from the electronics industry. The new wave is full of efficient, sleek models. Some look uncannily like normal roof tiles. Thanks to a recession in Spain (a voracious PV consumer) there are lots around.

But in the solar rush, remember to purchase responsibly. PV solar cells are far from ecologically innocuous, as they contain a concoction of toxic conductors. They should be manufactured in a closed-loop system to high environmental standards.

They also remain the only renewable really attuned to normal life. You can add them on to a house without incurring the wrath of planning departments or undertaking huge civil engineering projects.

Source - The Guardian

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