$140 million demonstration plant being constructed

Written By: Stratton Report
March 9, 2016


On March 9, NET Power, LLC, announced that it has begun construction on a demonstration on 50 MW power plant, intended to validate a natural gas power system that produces low-cost electricity with zero carbon dioxide emissions.

NET Power is a collaboration between Exelon Generation, CB&I, and 8 Rivers Capital. The $140 million program – which not only includes demonstration plant design and construction, but also ongoing technology advancement, a full testing and operations program, and commercial product development – is funded by a combination of cash and in-kind contributions from Exelon and CB&I.

The plant uses Allam Cycle technology, in which carbon dioxide is a working fluid to drive a combustion turbine. According to NET Power, this eliminates all atmospheric emissions without requiring carbon capture equipment, and ultimately produces pipeline-quality CO2 that can be sequestered or used in various industrial processes, including enhanced oil recovery. Toshiba has developed and is now manufacturing a new 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 services. 8 Rivers invented and continues to advance the technology behind the project.

NET Power’s CEO, Bill Brown notes:

“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. Today marks a significant step for our world-class team, including Exelon, CB&I, 8 Rivers and Toshiba, towards delivering a technology that will be the cornerstone of a modern global energy infrastructure that is clean, affordable and flexible.”

NET Power uses a novel process – an oxy-fuel, supercritical CO2 power cycle – to produce electricity. The NET Power system burns natural gas with oxygen, as opposed to air, and uses high-pressure carbon dioxide to drive a turbine. According to NET Power, this produces electricity as efficiently as the best natural gas power plants available today.

NET Power’s 50MW plant will generate power to the grid while demonstrating all key aspects of the Allam Cycle. Commissioning is expected to begin in late 2016 and be completed in 2017.