POWER

A report released on Friday by the Government Accountability Office (GAO) finds that power plant smokestacks of 500 feet or higher disperse pollutants over greater distances—and that stack height is one of several factors that contribute to the interstate transport of air pollution. The congressional investigative arm also finds that several boilers remain uncontrolled for certain pollutants, including several connected to tall stacks.

Italy on Monday overwhelmingly voted to abandon nuclear power after Germany’s cabinet last week backed a controversial policy to shutter that country’s nuclear plants by 2022.

The body of a contract worker trapped when a large boiler structure at the Paul L. Bartow Power Plant on Weedon Island near St. Petersburg, Fla., unexpectedly collapsed was recovered late Monday night, four days after the accident occurred, Progress Energy said.

The Department of Energy in the past week made three more conditional loan guarantee offers: $2 billion to support two concentrating solar power (CSP) projects in California—the Mojave Solar Project in San Bernardino County and the Genesis Solar Project in Riverside County—and a $350 million partial loan guarantee for an Ormat-owned Nevada geothermal project.

Through a combination of actions that encourage the development of untapped geothermal resources and new technologies, geothermal energy could account for around 3.5% of annual global electricity production by 2050 (a considerable increase from current levels of 0.3%) the International Energy Agency (IEA) says in a report released on Tuesday.

By Kennedy Maize Washington, D.C., June 12, 2011 – Venture capitalist Vinod Khosla appears to relish the role of contrarian, something the world of “green” and “smart” energy, whatever those terms mean, lacks in abundance. So it was that Khosla recently appeared at the annual Energy Storage Association meeting and made a presentation that led […]

GenOn has reportedly reached a settlement agreement with environmental groups PennEnvironment and the Sierra Club in a case that alleges the Houston-based company continuously violated its Clean Water Act discharge permit and discharged more than three million gallons of wastewater a day from its 1,700-MW coal-fired Conemaugh Generating Station in Western Pennsylvania into the Conemaugh River.

The Department of Energy has commissioned a testing facility as part of its National Carbon Capture Center (NCCC) to enable research and development of post-combustion carbon dioxide capture technologies for coal-based power plants and to speed up their deployment.

A day after Japan’s Nuclear and Industrial Safety Agency (NISA) doubled estimates of the total amount of radiation released into the atmosphere after an earthquake and tsunami ravaged Tokyo Electric Power Co.’s (TEPCO’s) Fukushima Daiichi nuclear power plant, the government nuclear watchdog released a 750-page report in which it admits, for the first time, that nuclear fuel may have possibly melted through reactor pressure vessels and accumulated at the bottom of outer containment vessels.

China has formally revoked grants to Chinese wind turbine manufacturers that agreed to use key parts and components made in China rather than purchasing imports after the U.S. filed a complaint with the World Trade Organization (WTO), saying the subsidies were prohibited under international trade rules. The U.S. took action after the United Steelworkers (USW) last September filed a trade case alleging that China used “protectionist and predatory” practices to develop its renewable sector at the expense of production and job creation in the U.S.

American Electric Power (AEP) and Duke Energy on Thursday said they would jointly develop a 55-mile, extra-high-voltage transmission project with the Tennessee Valley Authority (TVA) in Indiana and Kentucky.

The U.S. House Energy and Water Appropriations subcommittee on Thursday passed a bill that restores $35 million to the development of the Yucca Mountain permanent nuclear waste repository in Nevada, including $10 million that goes to the Nuclear Regulatory Commission (NRC) to continue its license application.

The latest recipient of a conditional commitment for a $45.6 million federal loan guarantee from the Department of Energy (DOE) is Fotowatio Renewable Venture’s 20-MW alternating current (AC) photovoltaic (PV) solar generating facility.

By Kennedy Maize Washington, D.C., June 1, 2011 – Maybe no electric utility in the country has a worse reputation for reliability that Pepco, which serves the nation’s capital and much of its Maryland suburbs. The company is under fire from District of Columbia and Maryland utility regulators for a record of storm-related blackouts over […]

In the wake of the devastating nuclear crisis afflicting the Fukushima Daiichi nuclear plant in Japan, Germany has embarked on an abrupt shift away from nuclear power, shutting down eight reactors for safety checks and ditching concerted efforts to keep nuclear power plants open in the long term. In mid-April, Chancellor Angela Merkel told reporters that leaders of Germany’s 16 states all want to “exit nuclear energy as soon as possible and make the switch to supplying via renewable energy.” The policy reversal has incited ardent opposition from the energy sector and industry.

Stricken by the economic crisis and forced to implement austerity measures, several countries around the world have been forced to abandon or slash subsidies for renewable power producers.

A rechargeable battery developed by researchers from Stanford University employs the difference in salinity between freshwater and saltwater to generate a current.

Italian Firm Wins Contract to Build Massive African Hydropower Plant. Italian construction firm Salini Costruttori said on March 31 it has signed a €3.35 billion contract with Ethiopia state-owned Ethiopia Electric Power Corp. to build a 5,250-MW hydropower plant on the Blue Nile, a tributary of the Nile River. The project, slated to be completed […]

The North American Electric Reliability Corp. (NERC) Reliability Standards are under constant revision even while new requirements are under active development. Three important regulatory definitions are currently being contested.

Radial, axial, and circumferential metallic seals installed on rotary, regenerative air preheaters have evolved little from the original metal strip designs that date back to the original Ljungström preheaters developed nearly a century ago. Unfortunately, metallic strip seals degrade soon after installation, allowing excessive air-to-gas leakage, which translates into increased fuel consumption and fan power.

Fourteen years ago, the MHI T-Point demonstration combined-cycle plant in Takasago, Japan, changed the way modern gas turbines are validated under real operating conditions. In February, T-Point marked yet another milestone by starting to validate the world’s largest and highest efficiency gas turbine, which operates at the unprecedented turbine inlet temperature of 1,600C.

A report released by the Government Accountability Office (GAO) today—and presented at a House Energy and Commerce Committee hearing on the Energy Department’s role in managing civilian radioactive waste—concludes that uncertainties exist about the direction of the nation’s policy for nuclear waste disposal.

In November 2008, a central Texas utility commissioned HPI, a full-service turbomachinery design and construction firm based in Houston, to perform a major upgrade of its plant’s power distribution and turbine control systems.

With natural gas serving as the fuel de jour, many utilities and merchant generators will be considering the purchase of new combustion turbines in the near future. If you are in the market for a gas turbine, here are some key design features you should discuss with turbine vendors prior to your next purchase.

Duke Energy will retire two coal-fired units at the four-unit 560-MW Gallagher Station in New Albany, Ind., instead of converting them to natural gas if regulators approve the company’s plans to buy the 640-MW natural gas–fired Vermillion Energy Facility in Cayuga, Ind.

Someone once said that "life begins at retirement." For people, perhaps, but not for our aging inventory of coal-fired power plants that are slated for retirement during the next decade.

Even though Texas is again basking in warm weather, federal regulators are still investigating the rolling blackouts that hit the Lone Star state during a record-breaking cold snap in early February.

Life-cycle cost of ownership is a common metric used to compare power plant system alternatives. However, the familiar formula for calculating the cost of generating electricity omits factors that are becoming increasingly important to business decisions. A new formula addresses those blind spots by estimating the value of the part-load performance of cycling combined-cycle plants.

New Jersey Governor Chris Christie on Thursday announced he would withdraw his state by the end of the year from the Regional Greenhouse Gas Initiative (RGGI)—a cap-and-trade carbon trading system that involves 10 Northeastern states—because the “program is not effective in reducing greenhouse gases and is unlikely to be in the future,” he said. The governor also said the state would not permit any new coal plants and that it would shut down “dirtier” intermediate and peaker plants.

Utilities struggling to meet renewable portfolio standards requirements have studied the conversion of existing coal-fired boilers to burn biomass. The results of those studies have been mixed, although test burns continue; the results of one such test are included. Overall, the market is tending toward smaller biomass projects, and the low price of natural gas is perhaps the biggest reason utility-scale projects are now few and far between.