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Mini-turbines set to harness energy from pressure in UK gas pipelines | Environment | guardian.co.uk

The enormous pressure inside the gas pipeline grid that supplies UK homes is set to be harnessed to generate clean electricity.

Work to place small turbines inside the gas network will start later this year at Beckton in east London. This first scheme will produce 20MW by 2010 from the natural gas that rushes through the pipes. Repeated across the country, the technology could generate up to 1GW - equivalent to the output of a conventional coal or nuclear power station.

Andrew Mercer of company 2OC, which has developed the "geo-pressure" technology, said: "We're very lucky that somebody else has built this pipeline infrastructure. We can borrow it to produce renewable energy."

When natural gas is drilled from underground reservoirs it is at far too high a pressure to be used safely in homes. "It would just blow up your gas cooker," Mercer said. Instead, the pressure must be released at hundreds of sites across the supply network known as letdown stations.



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by In Wales (inwales aaat eurotrib.com) on Tue Jan 6th, 2009 at 03:25:53 PM EST
[ Parent ]
I wonder where this is possible. Most pipeline networks need to expand considerable energy to build the pressure and push gas around. Taking away the kinetic energy from the gas seems a rather stupid thing to do there.

In the long run, we're all dead. John Maynard Keynes
by Jerome a Paris (etg@eurotrib.com) on Tue Jan 6th, 2009 at 04:10:35 PM EST
[ Parent ]
They're exploiting the bit where you have to reduce off that pressure to put the gas into the domestic piping. Regenerative braking for gas networks.
by Colman (colman at eurotrib.com) on Wed Jan 7th, 2009 at 11:56:04 AM EST
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