GE proposes gas-fired expansion to Linden Cogen plant

A proposal was posted July 11 to the New York State Public Service Commission website, in the docket for alternatives if the Indian Point nuclear plant has to shut, from GE Energy Financial Services for the gas-fired Linden Expansion project.

The proposal, which was heavily redacted, said this project involves the use of two highly efficient GE LMS100 natural gas fired simple cycle combustion turbines to provide power to New York through existing electrical transmission lines associated with the adjacent Cogen Technologies Linden Venture LP cogeneration facility. The power rating for this new facility was redacted.

The LMS100 turbines have a lower heat rate and higher thermal efficiency than other simple cycle combustion turbines. Due to a compressor intercooler and increased firing temperatures, the LMS100 turbines can achieve thermal efficiencies of 44% to 46%, about 10% higher than some of the most efficient simple cycle turbines currently in the market and compares favorably to combined cycle combustion turbine efficiency, the company noted.

Due to the LMS100 quick start capability, achieving full load in about ten minutes, the LMS100 has lower startup emissions. The project will utilize the most stringent emission control technology to minimize NOx and carbon monoxide emissions. Clean burning and efficient natural gas will minimize particulate matter, SO2 and CO2 emissions. Greenhouse gas emissions will be minimized due to the high efficiency of the turbine and the use of clean burning natural gas.

New facility can share infrastructure with existing cogen

The Linden Expansion project will be constructed on an industrial site adjacent to the existing Linden Cogen facility co-located within the Phillips 66 Bayway Refinery. Being adjacent to the existing Linden Cogen facility will allow for utilization of many of the existing systems including stormwater and wastewater management, water supply, natural gas supply and electrical transmissions systems with little impact to the surrounding community.

Modifications to existing environmental permits and authorizations to incorporate activities related to the expansion project will expedite obtaining the necessary environmental approvals, allowing for construction and startup to meet the New York Power Authority‘s (NYPA) June 1, 2016, commercial operation date for Indian Point alternative projects.

The Linden Cogen facility currently operates under a combined PSD and Title V Operating Permit. This permit was renewed in June 2012. The renewed permit authorizes emissions from the six existing combined cycle combustion turbines, five heat recovery steam generators and ancillary equipment. The permit incorporates recent state and federal regulatory requirements.

Modification of this permit to include the two proposed LMS100 combustion turbines will be necessary. Control technologies will include water injection and selective catalytic reduction to minimize NOx emissions. An oxidation catalyst will be installed to minimize carbon monoxide and volatile organic carbon emissions.

The project is being designed to interconnect with the New York City (Zone J) transmission system via an existing 345-kV cable and connection into Con Edison’s Goethals substation on Staten Island.

The LMS100 expansion integrates with the proposed Con Ed project to un-bottle Staten Island generation resources and address potential Indian Point/downstate generation retirement. Phase 1 of this project would mitigate a contingency within New York City by separating a common pipe double leg feeder into two separate feeders with independent positions at the Goethals and Linden Substations. Phase 2 increases transmission capacity by adding forced cooling to existing feeders between the Goethals, Gowanus and Farragut substations. For Phase 2 the length or feeders, operating voltage level (345 kv) would not change but the rating would increase by 200 MW.

The project company will be indirectly owned by GE Energy Financial Services (GE EFS), a subsidiary of General Electric (NYSE: GE). GE EFS’s investments include controlling interests in the Homer City Generation project (a 1.9 GW coal-fired plant in Indiana County, Pa.), Birchwood Power Partners (a 242-MW coal-fired plant in King George County, Va.), as well as multiple gas-fired plants utilizing GE F-class technology such as East Coast Power/Linden Cogen (1 GW gas-fired cogen plant in Linden, N.J), CPV Sentinel (an 800-MW gas fired simple-cycle plant using GE LM.S100 near Palm Springs, Calif.), and Shady Hills (a 517-MW dual-fueled simple-cycle power plant in Spring Hill, Fla.). Key customers include Dominion Virginia Power, Con Edison of New York, Duke Energy Florida and Phillips 66.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.