Tennessee Valley Authority (TVA) in the US has awarded an order to GE for the supply of two high-efficiency 7HA.02 gas turbine generators for the Thomas H Allen Fossil Plant, which previously housed three coal-fired units.
In accordance with the US Environmental Protection Agency (EPA) guidelines to reduce coal emissions, TVA has set a 2018 deadline for transforming the Allen plant into a combined cycle gas plant.
The 60-hertz gas turbines from GE will run on natural gas and will reduce carbon dioxide (CO2) emissions by around 65%. The transformation will also be able to reduce both sulphur dioxide (SO2) and nitrogen oxide (NOx) emissions by more than 95%.
Upon completion, the Allen plant is likely to generate 1,000MW power, which will be sufficient to power approximately 1 million US homes.
GE Power & Water president and CEO for power generation product unit Vic Abate said: "TVA has a strong plan to meet its obligations with the EPA, while providing its customers with efficient, reliable power generation technologies.
"GE’s H-class technology is transforming the industry, and we feel it is the best power solution for TVA and the greater Memphis region."
The plant was initially built by Memphis Light, Gas and Water Division. It supplies power to the Memphis area and a major part of the western region covered by the TVA. The new combined-cycle plant will also cover the same areas.
It is promised that the gas turbines will provide a net combined-cycle efficiency of more than 61% and a shorter installation schedule.
The gas turbines are likely to start commercial operations by May 2018, and GE is expected to deliver the equipment by August 2016.