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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
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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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