GAS POWER Direct

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 […]

If you’ve been paying attention to energy issues in the media lately, you may have encountered a curious narrative that’s starting to gain traction among supporters of renewable energy. Namely, that the core problem with wind and solar photovoltaic (PV) generation, which is matching moment-to-moment demand with the intermittency wind and sunlight, isn’t really a […]

  If you’ve seen U.S. coal industry executives casting wistful glances across the Atlantic recently, there’s a reason. In the U.S., natural gas is enjoying a boom unseen in decades, perhaps ever. New production from shale should make the country a net exporter within a decade. New gas-fired plants are starting up almost as fast […]

  As environmental regulations continue their forward march and gas prices remain low compared to historic rates due to increased domestic supply, the number of power plants changing their primary fuel source to natural gas has increased dramatically. In 2011 and 2012, just more than 5.5 GW of power plant capacity switched to burning primarily […]

Despite frail demand for natural gas in Europe and difficulties in upstream production growth in the Middle East and Africa, the “Golden Age” of natural gas will remain in full swing until at least 2018, recent projections from the International Energy Agency (IEA) show. A medium-term outlook released by the Paris-based autonomous intergovernmental organization in […]

A common talking point among critics of hydraulic fracturing is that they somehow “own the science” on shale development. The industry is merely raising doubt about scientific studies, they claim—just enough to confuse the public and make them think there’s a legitimate debate. As the Washington Post recently characterized Gasland Part II director Josh Fox’s opinion: Fox frets […]

  Lubricating oil is the lifeblood of virtually all rotating equipment found in a power plant. Keep it clean and the lube system is relatively low maintenance. However, cycling operation and restarts after a temporary or long-term shutdown can reveal a whole new class of perhaps unfamiliar problems. The fundamental question is determining when a […]

One lesson learned from the U.S. military’s far-flung operations during the 2010s was the critical importance of fuel supply lines. At the peak of the conflict in Afghanistan, getting each gallon of gasoline or diesel into remote operating bases could cost upwards of $1,000 when all transportation and security costs were factored in. With U.S. […]

Courtesy: Siemens. Copyright Brian Haux—SkyHawk Photography No nukes? No problem. The state of California, once home to three major nuclear power plants, weathered an early July heat wave in good shape despite having only one operating reactor, Unit 2 at Diablo Canyon Power Plant. Unit 1 at Diablo Canyon was forced to shut down for […]

Source: NREL The shale gas boom in the United States has upended energy planning not just in this country, but also around the world. Shale gas extraction is what business theorists refer to as a disruptive innovation, one that changes existing markets and creates new ones. Disruptive innovations are typically not new technologies so much […]

Courtesy: NRG When a new power plant is proposed, traditional battle lines are often drawn: The utility or plant owner on one side, usually with business interests in support, and concerned citizen and environmental groups on the other. Observers of NRG’s drive to replace its aging coal-fired Dunkirk Generating Station on the western shore of […]

Source: EPA It’s a solution that POWER’s legendary troubleshooter Marmaduke Surfaceblow, the six-foot-four marine engineer with a steel brush mustache and a foghorn voice, might have appreciated. Regulators across the country have begun to recognize that a significant source of pollution in major coastal cities arrives from over the horizon. Along with shipping containers, bulk […]

Courtesy: Pemex Rapid growth in U.S. gas exports to Mexico already is having profound effects north of the border, and things will only get more interesting. Gas producers in the Eagle Ford and other Texas shale plays are finding the new buyers they need. But gas consumers in the Southwest—caught with a losing hand of […]

Like any internal combustion engine, the power output and efficiency of a combustion turbine decrease as ambient temperatures rise. This loss of power and efficiency is caused by a reduction in ambient air density at higher temperatures. Since turbines are mass flow machines with a volumetrically limited intake, less-dense intake air results in degradation of […]

The benefits of combined heat and power haven’t been enough help it to keep pace with other generation resources. That’s why a new regulatory approach is needed.

Cheap natural gas is being blamed for many of the nuclear industry’s current predicaments. But is gas truly the culprit?

The complexities of operating under a broad renewable portfolio standard require careful analysis of the options when planning a new power plant. Here’s how one generator in California navigated the sea of conflicting priorities when it was time to upgrade.

Cycling is a fact of life for most gas plants. But do you really understand the true costs of cycling operation? Not having a full picture risks leaving substantial money on the table.

Don’t talk to New England about exporting natural gas. Without the Everett Marine Terminal, the region’s gas supply crunch would be a whole lot worse.

Sounding the call for new perspective, the North American Electric Reliability Corp. says it’s past time to formally consider gas availability and gas supply constraints when assessing the reliability of the bulk power system.

Though often cast as rivals for the same slice of the generation pie, gas and renewables, according to a new study of the ERCOT market, are natural allies for the long term.

Water has been one of the biggest headaches for fracking. But a new method offers a means to fracture shale—using natural gas itself.

Though current low natural gas prices are thought to deter renewable development, the long-term outlook suggests gas and renewables can work together.

Commissioner Philip Moeller of the Federal Energy Regulatory Commission talks with Editor Thomas Overton about the progress of gas-electric harmonization, potential risks to reliability in the dash to gas, and the future of gas-fired power.