Archive: Environmental

Duke Energy, American Electric Power Separately Seeking to Go Net-Zero Carbon by 2050

Two formidable U.S. coal power generators this week separately revised their carbon dioxide emissions reduction targets. Duke Energy announced it would achieve net-zero carbon emissions by 2050. American Electric Power (AEP), meanwhile, said it would extend its target from 60% to 70% from 2000 levels by 2030, and by more than 80% by 2050—but it […]

Nine Utility Companies Suing Trump Over Emissions Rule

A coalition of nine utility companies is suing the Trump administration over its plan to replace the Obama-era Clean Power Plan. New York-based Consolidated Edison said the Affordable Clean Energy, or ACE, rule undermines efforts the companies already have in place to cut greenhouse gas emissions from power generation. The companies, who call their group […]

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Power Companies Advance Voluntary Avian Protection Without Threat of Liability for Incidental Take

With shifts in political winds come shifts in agency legal interpretations. In January 2017, the solicitor of the U.S. Department of the Interior (DOI) issued a formal legal opinion interpreting the Migratory Bird Treaty Act (MBTA) to prohibit the incidental take (accidental injury or death) of migratory birds. This “midnight” legal opinion was widely viewed […]

New York City to Get Eight Floating Aeroderivative Gas Turbines

New York City may soon be powered with two new power barges outfitted with eight Siemens 76-MW aeroderivative gas turbines.  Under a Sept. 5-announced contract signed by Astoria Generating Co. (AGC) and Siemens, the power barges—a relatively new Siemens offering based on a concept it calls “SeaFloat”—will replace two of four existing power barges at […]

2018 Exceptional Year for Nuclear Power Firsts

Last year, five of the world’s 449 operable nuclear reactors reached 50 years of operation for the first time, four first-of-their kind reactor designs were brought online, and while the industry showed capacity factor impacts from load-following, the global nuclear fleet performed  at an average capacity factor of about 80%, says a new report from […]

THE BIG PICTURE: Renewable Portfolio Standards

As of August 2019, 29 U.S. states and the District of Columbia had renewable portfolio standards (RPSs), and eight others had non-binding renewable portfolio goals. Three states also had clean energy standards, which set targets for low-carbon non-renewables, like nuclear, and two had clean energy goals. Shown in the bars below are the shares of generation by source […]

Solar Baseload in the Kalahari: Kathu Solar Park

A greenfield concentrated solar power (CSP) project with novel parabolic trough technology and a molten storage system has revitalized a remote region. But the project is also laudable for its social

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Combustion Optimization to Improve Heat Rate and Lower NOx

Power plant operators are always looking for ways to boost performance. A combustion optimizer designed to improve efficiency and lower emissions could help. It supports more flexible operation of boilers by

Vistra May Close 2 GW of Illinois Coal Power By Year’s End

Vistra Energy will shutter four coal-fired power plants—a total 2 GW—as required by Illinois’ recently revised Multi-Pollutant Standard (MPS) rule, but CEO Curtis Morgan noted the move was “inevitable” due to the changing regulatory environment and unfavorable economic conditions in the MISO market.  The company on Aug. 21 said it will close the 54-year-old 915-MW […]