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Technology Stocks : Capstone Turbine Corporation (CPST) -- Ignore unavailable to you. Want to Upgrade?


To: Maurice Winn who wrote (217)8/16/2001 5:16:14 PM
From: Maurice Winn  Respond to of 455
 
A landfill methane-powered Capstone microturbine electricity production in Los Angeles has started service:
biz.yahoo.com

<LAKE VIEW TERRACE, Calif.--(BUSINESS WIRE)--Aug. 16, 2001--The Los Angeles Department of Water and Power, City Council President Alex Padilla, city officials and community leaders dedicated today, the largest micro-turbine power plant in the world to run exclusively off landfill gas.

City officials and LADWP construction workers gathered to celebrate as the switch was flipped to start the facility. The project is part of the Green Power for a Green LA Program and represents a unique partnership between the LADWP and the South Coast Air Quality Management District.

The site consists of 50 efficient, low-emission power generation units called micro-turbines, which are based on the same technology as jet engines. The micro-turbines were developed by Capstone Turbine Corporation, which is based in Chatsworth. Each turbine generates 30 kilowatts of electricity for a combined total of 1.5 megawatts of electricity. Along with an existing six-megawatt plant, the micro-turbine project will provide enough electricity for 7,500 homes in the city of Los Angeles.

``This project demonstrates that Los Angeles continues its leadership role by implementing new solutions to energy and land issues,'' said City Council President Alex Padilla. ``I'm sure nearby residents will rest easier knowing that this plant is helping reduce pollution and generate valuable, clean energy to power their neighborhoods,'' he added.

Landfill gas that would otherwise be flared, or burned into the atmosphere is harnessed via the landfill's extensive piping network. The gas is used to power the micro-turbines, which in turn generate electricity. ...continued
>

Mqurice



To: Maurice Winn who wrote (217)8/16/2001 9:25:51 PM
From: Sword  Read Replies (2) | Respond to of 455
 
It's a combined cycle plant. Very good idea.

The fuel cell produces very high exhaust gases. This is used to heat another gas in a closed brayton cycle or a 2 phase gas transport that is driven through the turbine and then condensed and recycled in a closed system. Electricity is produced from the turbine as well as the fuel cell. The fuel cell waste heat reduced markedly in temperature. You get tremendous efficiencies with no harmful emissions.

"A hybrid system showing great promise is integration of gasification with a fuel cell. Fuel cells offer very high efficiencies, with emerging fuel cells having 60 percent efficiency. These emerging fuel cells also produce very high-temperature exhaust gases that can either be used directly in combined-cycle or used to drive a gas turbine. IGFC hybrids have the potential to achieve up to 60 percent efficiency and near-zero emissions. Moreover, the concentration of CO2 lends itself to removal by separation or other capture means. Such systems require that the syngas derived from gasification be free of contaminates for use in the fuel cell, or that the hydrogen be separated from the syngas (hydrogen is the fuel element for the fuel cell)."

Taken from fe.doe.gov

Looks good to me. I'm a buyer.

-Sword