Gas

Combined cycle plants have the advantages of being extremely efficient and can be built in two phases when power needs peak unexpectedly. Ulsan 4 was built in response to the country’s 2011 power crisis for both reasons. The first task was installation of the combustion turbines in time to meet the 2013 summer peak demand. […]

Once merely a staple of backup and distributed generation, reciprocating engines are now challenging other resources for utility-scale generation—in addition to carving out some new niches. Grant County is a rural, sparsely populated county in southwestern Kansas. It doesn’t have a lot of people—its population in the 2010 U.S. Census was just 7,829—but what it […]

EU Doles Out €1 Billion in Funding for Renewable Projects Under NER 300. The European Commission on July 10 awarded €1 billion ($1.34 billion) to 19 renewable energy projects and a carbon capture and storage (CCS) project under its NER 300 program. The projects will cumulatively raise European Union (EU) renewable energy production by about […]

Calpine Corp. has its hands in two deals with large power companies—selling a plant to Duke Energy in Florida while buying a plant from Exelon Corp. in Massachusetts. On Aug. 25, Calpine announced that it has agreed to buy Exelon’s 809-MW Fore River Generating Station, which is located about 12 miles southeast of Boston, for […]

Geographically and politically, Texas and Germany are on opposite sides of the world, but both believe strongly in competitive energy markets, and both have largely deregulated their power industries. Now both are reconsidering their market designs. Its easy to think that Germany and Texas could not be more different. One is northern, cold, and Old […]

Dynegy Inc.—the Houston-based power company with operations in the Midwestern, Northeastern, and Western U.S.—has signed two separate agreements to acquire generation assets from Duke Energy and Energy Capital Partners (ECP). The acquisition includes a total of 12,313 MW of coal and gas generation, which will increase the company’s total portfolio to nearly 26 GW. Dynegy […]

Europe’s third-largest power provider last week revealed it may be forced to shut down more conventional power plants compromising a total of 1 GW and terminate 470 MW in supply contracts if market conditions in Germany do not improve.  RWE has blamed “political intervention” for “making [its] business challenging”—and specifically, the subsidized expansion of renewables […]

Long viewed as a potential “next big thing” for power generation—often drawing unwarranted hyperbole in the process—and more recently as niche distributed generation, fuel cells are finally beginning to make some noise at grid scale. Hydrogen- and natural gas–powered fuel cells have been deployed over the past decade in behind-the-meter and microgrid applications for on-site […]

The Tennessee Valley Authority (TVA) is poised to decide on the fate of a coal-fired power plant in Tennessee.  At its next meeting on Aug. 21, the TVA board will likely choose to retire three existing coal-fired units at the Allen Fossil Plant in Shelby County, Tenn., by December 2018 and replace them with a […]

NRG Energy is the latest company in a string of generators choosing to cease burning coal at generating units to comply with environmental rules.   An environmental action plan to reduce air pollution in Illinois released by the New Jersey–based company on Aug. 7 proposes to retire the 251-MW coal-fired Unit 3 at the 761-MW […]

With three recent requests to the Federal Energy Regulatory Commission (FERC), the Environmental Protection Agency (EPA) has signaled it may seek to slow the recent drive to export liquefied natural gas (LNG). Three times this year, the Texas regional office of the EPA has asked FERC to consider wider impacts of increased greenhouse gas emissions […]

This supplement to “Strategies for Inspecting HRSGs in Two-Shift and Low- Load Service” in the August issue includes additional discussion of the heat recovery steam generator (HRSG) Inspectors Toolkit and HRSG Inspection Guide sections of the main article plus additional photos of damage caused by rapid startups and two-shifting of units over time. More Tools […]

A combination of falling natural gas prices, greater integration of renewable generation, and advancing technology has meant changing roles for many plants, particularly gas turbine combined cycle plants. (See “Managing the Changing Profile of a Combined Cycle Plant” in the June 2014 issue.) The added wear and tear on plant equipment, and the changing maintenance […]

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Zeng Ming, Duan Jinhui, Wang Liang, Gu Shanshan In 2013, urbanization in China reached 53.73%. Urbanization has become an important field for national reform. On the one hand, urbanization is effective for

Consensus is that the locus of world energy demand has shifted away from the U.S. and Europe to Asia, driven by the soaring economies of the 10 countries that make up the Association of Southeast Asian Nations

Aheat-recovery steam generator (HRSG) is much like other power generation equipment—run it at design conditions and chances are it will run with high availability and require only routine maintenance for

Power plants are, with good reason, almost universally regarded as fixed assets to be operated, maintained, and retired on the spot where they were built. The idea of relocating something as large and

The past week saw a flurry of Congressional hearings probing how the Environmental Protection Agency’s (EPA’s) proposed carbon pollution rules will affect grid reliability and the economy.  On Reliability  The U.S. House Energy and Commerce Committee on Tuesday summoned the Federal Energy Regulatory Commission’s (FERC’s) four sitting commissioners and future chair Norman Bay to testify on […]

Interest in the Environmental Protection Agency’s (EPA’s) carbon pollution standards for existing power plants—the “Clean Power Plan,” proposed under the authority of the Clean Air Act Section 111(d)—was so high that the agency had to add double the days and double the rooms at all four locations this week. At all locations, power industry speakers […]

Speaking at the Energy Innovation Symposium in Washington D.C. on July 23, Southern Co. CEO Tom Fanning said that he would love “to announce another nuclear plant” later this year. But Fanning made it clear during his keynote address to attendees at the Bipartisan Policy Center’s American Energy Innovation Council–sponsored event that he favors an […]

San Diego Gas & Electric (SDG&E) on July 21 formally requested permission from the California Public Utilities Commission (CPUC) to enter into a power purchase agreement (PPA) with NRG Energy for up to 633 MW from the proposed Carlsbad Energy Center. The move is what SDG&E and NRG hope is the last chapter in a […]

When GenOn Energy (now part of NRG Energy) announced in March 2012 that it would retire the 1950s-era coal-fired Shawville Generating Station in western Pennsylvania—blaming the impending Mercury and Air Toxics Standards (MATS)—the reaction was swift and bitter. “Pragmatic energy policies should not guillotine coal from the nation’s energy grid,” then-state Rep. Bud George, who […]

Rep. Fred Upton (R-Mich.), chairman of the House Energy and Commerce Committee, on Tuesday unveiled five pillars on which U.S. energy policy should be built and discussed how the nation should tackle climate risks and grid threats.  The lawmaker told attendees at the Energy Information Administration (EIA) 2014 Energy Conference that the nation’s new era […]

Optimism about U.S. energy security, which is rooted in the abundant supply of fossil fuels alone, is misplaced, Maria van der Hoeven, head of the International Energy Agency (IEA) told attendees at an energy conference in Washington, D.C., on Monday.  The U.S. has seen a dramatic reversal in its energy fortunes over the past seven […]

After bottoming out at 822 billion cubic feet (Bcf) the week ending Mar. 28—the lowest level since April 2003—U.S. inventories of natural gas in underground storage have risen sharply this summer, though levels remain below recent averages, according to Energy Information Administration (EIA) data. Following a severe winter in which the country burned through a […]

Under rules proposed by the Environmental Protection Agency (EPA) on June 2, 2014, existing fossil fuel–fired U.S. power plants must comply with state-specific goals to lower carbon pollution from the power sector by 2030, while modified and reconstructed power plants will be subject to technology-based performance standards. The EPA’s “Clean Power Plan” rule affecting existing […]

RWE AG is Europe’s third-largest electricity and fifth-largest gas marketer, with holdings in upstream oil and gas production, power grids, and energy trading. Its German power subsidiary has been the utility poster child for the effects of the Energiewende, the transformation of the Germany power system away from nuclear and coal toward renewable energy and […]

At the Edison Electric Institute (EEI) annual meeting this week in Las Vegas, the tone was one of collaboration with partners from Washington to distributed generation companies. Those partnerships will be needed as the investor-owned utility (IOU) industry fights not so much a war on coal as a war for mindshare and wallet share in […]

Florida Power & Light (FPL), Florida’s largest utility, announced on June 25 that it was looking to invest directly in natural gas exploration and production as a means of securing future gas supplies and guarding against price volatility. NextEra Energy subsidiary FPL, the largest consumer of gas in the state, has been rapidly expanding its […]