Gas

Two senior power sector executives opened the 2016 ELECTRIC POWER Conference and Exhibition in New Orleans April 19 with a message that generators need to “think big” and embrace possibilities of disruptive technologies—or risk being run over on the road to the future. Leo Denault, chairman and CEO of Entergy Corp., delivered the opening keynote […]

Public benefits offered by the Mercury and Air Toxics Standards (MATS) far outweigh the costs, the Environmental Protection Agency (EPA) said as it released a review of the 2012-finalized rule’s cost implications. The final cost consideration—released just days before power plants that received a one-year extension must come into compliance with the rule—was prompted by […]

Financially bruised Peabody Energy Corp.—the world’s largest privately owned coal mining firm—is seeking bankruptcy protection. The St. Louis–headquartered company filed for voluntary Chapter 11 protection in a desperate attempt to strengthen liquidity and reduce debt amid what it says has been an “unprecedented industry downturn.” It filed petitions for most of its U.S. entities in […]

After 64 years as a landmark in Wilmington, N.C., one of three boiler units at Duke Energy’s retired coal-fired L.V. Sutton Plant crumpled in a dusty heap of contorted steel and splintered glass on April 10. The implosion is the first of three similar events to take place at the Sutton Plant. The next is […]

The average capacity factor for U.S. natural gas–fired combined cycle power plants (CCPPs) exceeded that for coal-fired plants in 2015 for the first time since the Energy Information Administration (EIA) has been keeping records, the agency noted on April 4. Gas generation exceeded coal generation for most of 2015, though coal ended slightly ahead for […]

In a joint report issued April 5, a group of California agencies and utilities said that if the Aliso Canyon natural gas storage facility north of Los Angeles cannot be returned to service after a major leak this past winter, repeated gas curtailments could occur this summer, leading to significant loss of generating capacity in Southern […]

The owner and management company of the Berkshire Power Plant—a 252-MW natural gas–fired combined cycle plant located in Agawam, Mass.—agreed to plead guilty on March 30 to felony charges that the companies violated and conspired to violate the federal Clean Air Act. The indictments against Berkshire Power Co. (BPC), the owner of the plant, and […]

If you’re still thinking of drones and robots as more toy than tool, think again. The drones now working in the power sector have gone far beyond remote-control hobbies and now resemble something closer to

Why would one want to validate a turbine design? The answer is that actual operation of new and more advanced gas turbines can reveal issues that are very difficult to predict on the drawing board. As a

A diverse coalition of major investor-owned utilities, public power authorities, and one of the largest independent power producers, as well as a combination of cities and states, clean energy groups, and environmental groups, filed briefs with the D.C. Circuit Court of Appeals in support of the Environmental Protection Agency’s (EPA’s) Clean Power Plan. The involved […]

Challenge:
After a major refurbishment, a Canadian nuclear plant required additional process and boiler feed water for plant start-up and commissioning.
The plant’s raw water supply contained measurements ranging from 1-10 NTU, conductivity from 70-100 and color units ranging from 180-420. The plant also experienced highly variable flow rates, ranging from 0-600 GPM, and issues with the

Over the past week, several states took action on the Clean Power Plan as Senate Majority Leader Mitch McConnell (R-Ky.) urged governors to “wait and see” on the carbon rule, and the Environmental Protection Agency’s (EPA’s) chief defended the rule. McConnell Urges Governors to Halt Compliance Work. In a March 21 letter to the National […]

Challenge
A global polymer producer located in Ohio sought to improve the annual outage cleaning of its heat exchangers.
Historically, industrial cleaning contractors hand lanced the heat exchanger tubes, servicing four to six exchangers per night for two weeks to fit within the outage schedule. But often, multiple heat exchangers would require re-cleaning to allow for heat

Construction of a 50-MWt plant that will demonstrate a novel oxyfuel natural gas power system using Allam Cycle technology with zero atmospheric emissions has kicked off in La Porte, Texas. The demonstration plant is being built by the technology’s developer, Durham, N.C.–based NET Power, along with Exelon Generation, CB&I, and 8 Rivers Capital. NET Power’s […]

The Energy Information Administration (EIA) said in its March 8 Short-Term Energy Outlook that natural gas would supply the largest share of U.S. electricity in 2016, continuing its rise against coal. EIA data from 2015 showed that gas and coal pulled into a near-tie on the year, with coal generating 1,356 TWh, for a 33.2% […]

Of nearly 18 GW of U.S. generating capacity permanently shuttered in 2015, 77% was conventional steam coal–fired. About 30% of that 13.7 GW in coal capacity was retired in April 2015, when the Environmental Protection Agency’s (EPA’s) Mercury and Air Toxics Standards (MATS) rule went into effect, said the Energy Information Administration (EIA) on March […]

China has been struggling for years with endemic air pollution in major cities like Shanghai, and the nation’s traditional heavy reliance on coal has been challenged head-on by new government policies to cut emissions and reduce the carbon intensity of the power sector. While major advanced coal plants and China’s massive build-out of its nuclear […]

MPW’s Bundle Blaster Side Cleaner system is designed to remotely clean the shell side of small to medium
sized tube bundles, up to 36 feet in length. The tube bundle is placed on hydraulically actuated rollers to
incrementally turn the bundle during the cleaning process while the cleaning head runs horizontally on a track
over the bundle. MPW’s

Entergy Corp. announced on March 4 that three of its subsidiaries had closed on a transaction to purchase the 1,980-MW Union Power Station near El Dorado, Ark. The plant includes four combined cycle gas turbine (CCGT) units, each rated at 495 MW. Each unit operates two GE 7-FA combustion turbines with inlet air fogging, two […]

The fleet of Siemens H-class high-efficiency gas turbines achieved more than 200,000 operating hours in January 2016. There are currently 19 turbines in the SGT-8000H series in commercial operation, and they are setting the standard for efficiency, reliability, and availability. Siemens has sold a total of 76 H-class gas turbines worldwide to date: This makes […]

Many combined cycle and cogeneration plants with heat recovery steam generators (HRSGs) were originally intended as baseload power sources or steam producers. In recent years, however, some have been

Steam turbines have to be warmed slowly to avoid excessive differential expansion of the various components, rotor stress, and potentially reduced service life. For that reason, startup times must be extended

Gas power technologies set new benchmarks over the past few months as gas turbine “gorillas” Siemens, General Electric (GE), and Mitsubishi Hitachi Power Systems Americas (MHPSA) all reported new

At the ballyhooed Paris climate conference last December, a little-noticed event occurred that could lead to important developments for electric generators. At the Paris meeting, some 80

Germany’s Energiewende (energy transition) was adopted as policy beginning in September 2010, some six months before the disaster at Japan’s Fukushima nuclear plant, and full legislative support was

Battered by stubbornly low natural gas prices and regulatory headwinds, coal-fired generation fell into a near-tie with natural gas in 2015, according to data released on Feb. 26 by the Energy Information Administration (EIA). For all of 2015, coal generated 1,356 TWh, while gas-fired generation produced 1,335 TWh, giving coal a slight 33.2% to 32.7% […]

New reports released this week see big growth in renewables from the recently extended federal tax credits, but big uncertainty due to the possible end of the Clean Power Plan (CPP). New York-based consulting firm Rhodium Group says investment plans in the power sector will be radically different if the Clean Power Plan doesn’t happen. […]

A proposal put forth by China—and one that it says has received “positive responses” and substantial backing from international groups, including the United Nations—foresees a global smart ultra-high-voltage (UHV) grid that transmits only “clean energy.” The Global Energy Interconnection (GEI) outlined by State Grid Corp. Chairman Zhenya Liu on February 25 at the IHS CERAWeek […]

Dynegy Inc. and Energy Capital Partners (ECP), through a newly formed joint venture, have agreed to acquire ENGIE’s U.S. fossil-fueled power generation portfolio, consisting of 8,731 MW of capacity located in the ERCOT, PJM, and ISO–New England transmission regions. The $3.3 billion deal was announced on February 25, with an expected closing date in the […]