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The 'zero-emission' gas power plant

NCE stock energy

Construction of a gas fired power station said to produce no carbon emissions has begun in the US.

North Carolina energy consortium Net Power this week said it had broken ground on a 50MW demonstration plant in Texas.

The organisation – a collaboration between Exelon Generation, Chicago Bridge & Iron Company (CB&I) and 8 Rivers Capital – said the plant would showcase technology that used carbon dioxide as a working fluid.

It claimed the plant would only produce water, electricity and pipeline-quality carbon dioxide, which it said could be used in industrial processes.

“Net Power is the first technology that allows policy and economics to work together, instead of against each other, to ensure the world meets our climate targets,” said Net Power chief executive Bill Brown.

A $140 million (£97M) programme includes demonstration plant design and construction; ongoing technology advancement; testing and operations; and commercial product development.

It has been funded by cash and in-kind contributions from Exelon and CB&I, while Toshiba is manufacturing a supercritical CO2 turbine and combustor for the project.

CB&I is performing the engineering, procurement and construction of the plant; Exelon is providing operations, maintenance and development; 8 Rivers invented the technology.

Net Power said its system used an ’oxy-fuel, supercritical CO2 power cycle’ to produce electricity efficiently while inherently eliminating all air emissions.

It said the system burned natural gas with oxygen and used high-pressure carbon dioxide to drive a turbine. 

Commissioning of the demonstration plant is expected to begin this year and be completed in 2017.

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