Dresser-Rand delivers Appomattox power plant equipment

Offshore staff

HOUSTON – The Dresser-Rand business, part of Siemens Power and Gas Division, recently delivered power generation equipment for a combined cycle power plant (CCPP) for Shell’s deepwater Appomattox platform.

The ~150 MW CCPP will feature four 27 MW gas turbine-driven generator sets equipped with heat recovery systems and a 40 MW steam turbine generator.

The gas turbine gen-sets are self-contained mini-modules complete with all electrical wiring, piping, tubing, and controls. The gen-set, ancillary equipment and baseplate remain connected after unit testing substantially reducing the time required to install, commission, and start-up the packages.

With CCPPs, a gas turbine generator produces electricity while the waste heat from the gas turbine is used to make steam to generate additional electricity via a steam turbine. The CCPP for Appomattox is designed to improve overall fuel efficiency, reduce emissions of greenhouse gases, and increase total power generation for the platform.  

The steam turbine generator package was manufactured in Wellsville, New York, and packaged in Olean, New York. An 18.5 MW load test was performed on the steam turbine generator set using the steam-producing capability at the Olean facility. The gas turbine generator packages were designed in Kongsberg, Norway.

Appomattox will be located 80 mi (129 km) off the coast of Louisiana in the Gulf of Mexico and is slated to start production around the end of this decade.


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