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While the industry is aware that variations in both boiler load and fuel have impacts on combustion processes, recent observations have shown that these changes also have significant effects…

Refined coal technology is widely used in coal-fired power plants for emissions reduction. The technology is successfully implemented for different types of coals and combustion configurations…

Brown plume (visual opacity) formation from sodium-based dry sorbent injection systems has been observed when mitigating sulfur dioxide (SO2) in high SO2 and nitrogen oxides streams using fabric filter technology…

Three top vice presidents with Pacific Gas & Electric (PG&E) and the chief of staff of California Public Utilities Commission (CPUC) President Michael Peevey were all fired Sept. 15 over improper communications between the company and the CPUC. Though the emails concerned a pending Gas Transmission and Storage rate case, the dispute has become tied […]

Affirmative defense provisions can no longer insulate generators from monetary penalties for Clean Air Act violations that result from facility startup, shutdown, and equipment malfunction, the Environmental Protection Agency (EPA) has proposed.  In a supplemental notice of proposed rulemaking (SNPR) published on Sept. 17 in the Federal Register, the agency proposes to revise its February […]

With Units 6 and 7 back in operation, Colorado Springs Utilities (CSU) has restored 80% of the generation capacity at its Martin Drake Power Plant located in downtown Colorado Springs. The plant was taken offline after sustaining significant damage during a May 5 fire. Most of the damage occurred in the area surrounding Unit 5, […]

Consumers Energy—Michigan’s largest utility—reached an agreement with the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice that will result in more than $2 billion being spent on upgrades at its power plants and the closure of seven coal-fired units, according to the company. The settlement resolves claims that Consumers Energy violated the […]

Power companies will retire more coal-fired generating capacity and retrofit much fewer units with environmental controls than estimated just two years ago, the Government Accountability Office (GAO) reveals in a new report. The report released on Tuesday finds that in response to shifting market conditions and four Environmental Protection Agency (EPA) rules (not including the […]

The Environmental Protection Agency (EPA) has extended the public comment period for its proposed rule to limit carbon dioxide emissions from existing power plants by 45 days. Janet McCabe, acting assistant administrator for the EPA’s Office of Air and Radiation, today told reporters in a press call that the EPA’s comment period for its Clean […]

The U.S. Nuclear Regulatory Commission (NRC) on Sept. 16 issued design certification for GE Hitachi’s Economic Simplified Boiling Water Reactor (ESBWR), the company announced. The ESBWR is a Gen-III+ advanced boiling water reactor (BWR) that employs true passive safety systems and a simplified design utilizing natural circulation. These attributes allow the reactor to cool itself […]