Coal

Maybe it’s time to start talking about the “POWER bump.” Over two years ago, POWER magazine published a story about a new concept for generating power from waste heat. Today, Sarnia, Ontario’s AVEtec Energy Corp. announced that Silicon Valley entrepreneur and venture capitalist Peter Thiel will fund a prototype Atmospheric Vortex Engine (AVE) invented by the company’s president, Louis Michaud. The technology holds promise for low-cost thermal plant efficiency gains by generating power from waste heat.

The Natural Resources Defense Council (NRDC) on Monday made public a proposal that calls for the Environmental Protection Agency (EPA) to use its authority under the Clean Air Act (CAA) to set greenhouse gas (GHG) emissions standards for existing power plants. The NRDC approach would have the EPA create “systemwide standards” rather than ones based on individual generating units.

Allowing unlimited U.S. exports of liquefied natural gas (LNG) would increase marginal costs of supply and raise domestic natural gas prices, but it would have "net economic benefits" across a range of scenarios ranging from relatively normal conditions to stress cases with high costs of producing natural gas in the U.S. and exceptionally large demand for U.S. LNG exports around the world, a report prepared for the Department of Energy and released on Wednesday suggests.

NRG Energy has given up a $1.2 billion plan to add a 744-MW pulverized coal unit to its Limestone Electric Generating Station near Jewett, Texas, saying low natural gas prices had rendered the project uneconomic.

Regulatory uncertainty concerning the disposal of coal ash has stalled coal ash recycling in the U.S. and kept levels below those reported in 2008 for a third consecutive year, suggests a new report from the American Coal Ash Association (ACAA).

Compared to projections from last year, an Early Release Overview of the Energy Information Administration’s (EIA’s) Annual Energy Outlook 2013 (AEO2013) released on Wednesday foresees higher gas production and, with it, a higher share of gas generation by 2040. The outlook also projects a growing share of renewable and nuclear power, but dampened future coal use.

U.S. Environmental Protection Agency efforts to regulate mercury emissions from coal- and oil-fired power plants have spanned nearly two decades. In February of this year the agency promulgated the Mercury and Air Toxics Standards, but changes to the standards continue.

Coal used for power generation has been the cornerstone of economic development, social progress, and a higher quality of life around the globe and is now fueling the 21st-century economic miracle rapidly unfolding in China. Meanwhile, China is leading the world in coal-fired plant efficiency and the deployment of clean coal technologies.

A post-combustion polymeric membrane system that promises to separate and capture 90% of the carbon dioxide emitted from a pulverized coal plant has been successfully demonstrated and last week received approval from  the Department of Energy (DOE) to advance to a larger-scale field test.