A wind turbine that cost the Welsh government tens of thousands to build generates just £5 of electricity a month because it’s been put in the wrong place.
At a cost of £48,000, it will take a whopping 800 years before the turbine is cost effective.
The sustainable energy generator was put up at the government’s Aberystwyth office in 2009, according to BBC Wales.
But it was confirmed in a response to a Freedom Of Information request that between January 2012 and July this year the turbine had generated only 585 kilowatt hours of energy (kWh) – averaging 33 kWh a month, at a market value of £5.28.
Its makers had warned it would not be receive enough wind in the location before building it. The company Quiet Revolution showed the BBC a letter which made clear it was sceptical of the location.
However, the Welsh government said the turbine had been beset with mechanical problems during 2012.
It insisted the turbine was generating more electricity this year – but still only at the value of £8.84 a month. At this rate it would take 453 years to breakeven.
"I think the problem is quite simple - it's been put in the wrong place," Paul Burrell from Anemos, a company that installs wind turbines, told the BBC.
"It's very important with any wind turbine to ensure it's in the most exposed location possible. They need unobstructed access to wind from all directions… Unfortunately the Welsh government's one is located in a valley, two miles from the sea and has quite a short tower.”