Comments on: Coal Creeps Back Into UK Power Sources http://www.globalcool.org/en/2007/03/28/coal-creeps-back-into-uks-power-sources/ Working with you to change the world. Thu, 04 Dec 2008 00:25:08 +0000 http://wordpress.org/?v=2.0.5 by: Tom Greeves http://www.globalcool.org/en/2007/03/28/coal-creeps-back-into-uks-power-sources/#comment-461 Thu, 29 Mar 2007 19:30:55 +0000 http://www.globalcool.org/en/2007/03/28/coal-creeps-back-into-uks-power-sources/#comment-461 It is very worrying that major power stations are going back to coal. It would not be half so bad if they were introducing the latewt technology, ie. gassifying the coal, removing the CO2 and other pollutants, burning the gas to drive gas turbines and then using the exhaust gases to generate steam to drive more turbines. I understnad this give around 50% efficiency compared with 30%. Pumping the CO2 underground seems a bit risky to me and uses quite a bit of power, reducing that 50%. The right approach is local power generation using CHP from gas, or better from biomass, plus small scale winf and PV. All tall buildings should carry PV arrays and wind generators and new tall buildings should be carbon neutral. Woking has shown us the way, and London is doing its best to follow - albeit a long way behind - we should all follow. It is very worrying that major power stations are going back to coal. It would not be half so bad if they were introducing the latewt technology, ie. gassifying the coal, removing the CO2 and other pollutants, burning the gas to drive gas turbines and then using the exhaust gases to generate steam to drive more turbines. I understnad this give around 50% efficiency compared with 30%. Pumping the CO2 underground seems a bit risky to me and uses quite a bit of power, reducing that 50%.
The right approach is local power generation using CHP from gas, or better from biomass, plus small scale winf and PV. All tall buildings should carry PV arrays and wind generators and new tall buildings should be carbon neutral. Woking has shown us the way, and London is doing its best to follow - albeit a long way behind - we should all follow.

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