Gallery: Seven Vertical Axis Wind Turbines Added To London’s 2012 Olymp...

 

The Olympic Delivery Authority has installed vertical axis wind turbines in London’s Olympic Park after plans to place a single, giant wind turbine fell through. The London 2012 Olympic Games has received some flak for not meeting its green targets and failing to be the ‘Green Olympics’ that it promised to be, but the installation of the seven qr5 turbines suggests that Olympic organizers are still attempting to meet their sustainable goals.

Vertical axis wind turbines work differently to conventional three blade turbine and are actually deemed to be more efficient as they don’t require power or a minimum wind speed to start. The original Olympic plans discussed the potential installation of a large wind turbine at the Stratford park site, but it never happened. Now the smaller vertical wind turbines are stepping in to fill the renewable energy void that it has left.

The seven qr5 turbines are being provided by British wind turbine manufacturer Quiet Revolution, and although there is no official statement from either the company or the Olympic Authority on their installaion, it is know nthat the turbines stand 18 metres tall and can provide up to 7,500 kWh of power a year.

Speaking to The Guardian, a spokesman for the Olympic Delivery Authority said that the wind turbines each cost £40,000, but are expected to pay for themselves within 12 years. “Sustainability has been designed into the project from the beginning, and as a result the ODA will significantly exceed its 50 per cent target to reduce the carbon footprint of the construction of the Olympic Park,” he said.

“These seven turbines serve a valuable dual function by providing 40 per cent of the energy for high-powered streetlights as well contributing to the overall renewable energy target. The turbines are connected to the Park’s energy supply, which feed renewable energy into the Olympic Park energy network during the day, which offsets power used by the lamp at night.”

+ Quiet Revolution

via The Guardian

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  1. save energy August 1, 2012 at 6:01 am

    FORM WITHOUT FUNCTION

    some simple maths -

    From the Guardian article-
    “The 18-metre tall turbines BOAST 8kW of capacity and CAN provide up to 7,500 kWh of power a year IF average wind speeds reach seven metres per second.”
    (Note the words – 18-metre tall – BOAST 8kW – CAN – IF.)

    The seven wind turbines which have been installed have a total installed capacity of 7*8 = 56kW.

    According to the UK Wind Speed Database the area only gets 5m/sec at 25m ht – that reduces output by approx 1/3rd = 37.3kWh

    But ….. According to Dept of Energy & Climate Change , on-land wind load factor = 26% so reducing that to aprox 9.3kWh

    “for high-powered streetlights” assume 100w/lamp = 93 streetlights.

    £280,000 to power 93 streetlights !!!! WTF that’s over £3,000 each

    And you still need a conventional power plant for the other 74% of the time of low/no wind production – or the lights go out.

    That’s the folly of wind

    (They do look nice though)

    PS
    I just looked at the Nordic power system site.
    The Cost €/MW
    Norway- 0.2% Windpower = 10
    Sweden -1.3% Windpower = 10
    Denmark- 21% Windpower = 48

    Cheap abundant “green” energy….it’s a scam

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