Coal

Witnesses from four federal agencies, including Environmental Protection Agency (EPA) Administrator Gina McCarthy, answered pointed questions about the president’s June 2013–released Climate Action Plan (CAP) and associated rules at an oversight hearing of the Senate Committee on Environment & Public Works today.  Committee Chair Sen. Barbara Boxer (D-Calif.) began the hearing to review President Obama’s […]

Three Wyoming coal-fired power plants will be required to install costly controls to curb nitrogen oxide (NOx) emissions under a regional haze rule that was finalized by the Environmental Protection Agency (EPA) last week. The agency disapproved parts of a state implementation plan (SIP) submitted by Wyoming in January 2011 to address regional haze. It […]

Important process variables that affect unit efficiency were reviewed in Part 1 of this two-part report. Many of those process parameters were also identified as related to boiler air in-leakage.  These stealthy combustion losses are difficult to identify or locate yet have a significant effect on boiler combustion efficiency. Keeping your plant operating at or near […]

The Environmental Protection Agency (EPA) will today miss a legally set deadline to issue finalized standards for cooling water intake structures for all existing power generating facilities under Section 316(b) of the Clean Water Act.  The EPA’s 2004 Phase II Cooling Water Intake Structure rules were suspended in July 2007 in response to the Second […]

The EPA published the latest version of its new source performance standards (NSPS) for carbon pollution from new power plants in the Federal Register on Jan. 8, setting in motion a 60-day public comment period. The action stems from the 2007 Supreme Court decision in Massachusetts v. EPA that defined greenhouse gases as an air […]

Brayton Point’s non-price retirement (NPR) request was rejected in a Dec. 20 letter from ISO New England Inc. (ISO-NE) to EquiPower Resources Corp., owner of the 1530-MW fossil-fueled power station located in Somerset, Mass. The NPR had been filed on Oct. 6, 2013, which triggered a regional system assessment by ISO-NE. The review found that […]

An option to curb NOx emissions from the Navajo Generating Station (NGS) near Page, Ariz., put forth by the Environmental Protection Agency (EPA) last October has been endorsed by a coalition of the plant’s stakeholders. The EPA’s supplemental proposal incorporates in large part a Best Available Retrofit Technology (BART) alternative that was submitted by a […]

Increases in spot natural gas prices generally prompted wholesale electricity price hikes across the nation from in 2013, but power prices were the highest in the Pacific Northwest and New England, the Energy Information Administration (EIA) said on Tuesday.  Average wholesale electricity prices at the Mid-Columbia trading hub were $37.53/MWh—soaring 64% in 2013 compared to […]

In an email interview with POWER, Xue Wei, manager for Emerson Process Management Power & Water Solutions, China Business Development, provided some insight into the current state of control systems for Chinese power plants. His responses, edited for style, follow. POWER: How widespread are “state-of-the-art” control systems (yours and others) in new generating plants in […]

Arizona Public Service (APS) has purchased Southern California Edison’s (SCE’s) ownership share in the Four Corners Power Plant Units 4 and 5. The two units—located on Navajo land in Fruitland, N.M.—generate a combined 1,540 MW. Ownership had previously been split between six companies, with SCE owning the largest portion (48%) and APS owning 15% prior […]