Duke Energy Carolinas moves forward with possible new generation in South Carolina
GREENVILLE, S.C. - Duke Energy Carolinas on Thursday filed an application for a Certificate of Environmental Compatibility and Public Convenience and Necessity (CECPCN) with the Public Service Commission of South Carolina (PSCSC) seeking approval to construct and operate a 750-megawatt natural gas-fired combined cycle plant at the existing Lee Steam Station in Anderson County, S.C.
Thursday’s filing was in partnership with North Carolina Electric Membership Corporation (NCEMC), which will be a minority owner of 100 megawatts of the project if constructed.
Though no final decision to build at Lee has been made, it is prudent to continue with the regulatory actions necessary to keep the project moving forward.
“The energy needs of our customers are significant over the next 15 years,” said Clark Gillespy, Duke Energy state president – South Carolina. “Our commitment is to meet our customers’ needs in a way that balances affordable, reliable and increasingly clean electricity, and this project will help us satisfy that need.”
The utility’s request is part of a comprehensive, long-term plan to add new generation, modernize the fleet, maintain a diverse fuel portfolio, and manage customer costs while delivering a high-quality, reliable power supply.
Natural gas-fired combined cycle plants are a good match to meet needed base and intermediate load demands because of their high efficiency and flexibility. Their emissions of sulfur dioxide and nitrogen oxide are very low, and natural gas emits about half the carbon dioxide as coal.
A combined cycle unit uses combustion turbine generators, boilers and a steam turbine generator to produce electricity.
Natural gas is burned in the combustion turbines to produce mechanical power that is converted into electrical power by the generators. For increased efficiency, the hot exhaust gases from the combustion turbines are used to create steam in the boilers that spins a steam turbine-generator and creates additional power.
The proposed project would represent a substantial long-term investment by Duke Energy Carolinas in the Lee Steam Station site and surrounding community, adding about 500 jobs during the height of construction.
“The Lee site is a great location for a combined cycle plant,” Gillespy said. “Duke Energy will be able to leverage existing site infrastructure to minimize new generation project costs and impacts to the community and environment.”
Construction could begin after the company receives the necessary regulatory approvals. The new plant could begin commercial operation as early as June 2017.
Duke Energy Carolinas
Duke Energy Carolinas owns nuclear, coal-fired, natural gas and hydroelectric generation. That diverse fuel mix provides approximately 20,000 megawatts of owned electric capacity to approximately 2.4 million customers in a 24,000-square-mile service area of North Carolina and South Carolina.
Headquartered in Charlotte, N.C., Duke Energy is a Fortune 250 company traded on the New York Stock Exchange under the symbol DUK. More information about the company is available at: www.duke-energy.com.
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