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It’s official: The coal- and oil-fired Salem Harbor Station north of Boston, scheduled to be retired next year, will be replaced with a fast-ramping natural gas combined cycle plant. The four-unit, 720-MW plant, which was built on the site of an existing coal terminal in the 1940s, was sold by previous owner Dominion Resources to […]

For the past few years, the North Dakota oil boom has run far ahead of the state’s ability to ship its oil and gas out of producing areas because of a lack of gathering pipeline infrastructure. While excess oil can be shipped by rail, the low price of natural gas has led producers to flare […]

The oldest power plant in South Korea is making way for something so new that no one has even attempted it before. Korea Midland Power Corp. (KOMIPO) announced earlier this year that Seoul Thermal Power Station, built in the 1930s, would be replaced with a new 800-MW two-unit combined cycle power plant—one that will be built […]

California’s drive to add flexibility to its grid in response to expanding renewable generation took another step forward in September as NRG Energy commissioned two new fast-start units at its El Segundo Energy Center near Los Angeles. The two units, with a combined 550 MW capacity, represent the second Siemens Flex-Plant to go into commercial […]

As variable generation from wind and solar power increases and peak loads grow and become more volatile, the U.S. electric grid will rely more and more on gas-fired power to maintain system flexibility. Often at the core of these gas-fired power plants are aeroderivative turbines, whose fast-start and cycling capabilities allow for frequent on-again, off-again […]

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Pressures on competitive power markets have fueled substantial declines in plant valuations over the past five years, with coal plants taking the brunt of the damage. That’s the conclusion of a new report from financial services firm Fitch Ratings released on Wednesday. The report, which calculated the net present value of plants across the country […]

The Energy Information Administration (EIA) reported Wednesday that although natural gas use for power generation through the first seven months of 2013 is down 14% from historic highs last year, it remains above the 2009–2011 average across the U.S. The drop is the result of higher gas prices relative to coal compared to 2012. However, […]

Much attention has been devoted recently to the increased cycling that is necessary in fossil plants as more renewable capacity is added to the grid, but data on the precise impacts has been slight. Now, a new study from the National Renewable Energy Laboratory (NREL) aims to correct that. The key findings: While cycling would increase […]