POWERnews

The Nuclear Regulatory Commission (NRC) on Tuesday delayed approving a recommendation made by technical staff that calls for upgrades or replacements of "hardened" venting systems at the nation’s 31 Mark I and Mark II boiling water reactors (BWRs), giving staff a year instead to assess other options and produce a "technical evaluation" on the proposal.

In a letter to President Obama last week, four Senate Democrats expressed "continued concern" about the Environmental Protection Agency’s (EPA’s) plans to issue greenhouse gas (GHG) new source performance standard (NSPS) rules for new fossil fuel-fired power plants. The proposed rules could ban "new state-of-the-art" plants from being built and hamper advancements that could benefit the nation’s coal power sector, the senators argued.

An explosion caused by a steam pipe rupture at the natural gas-fired AES Alamitos Generating Station rocked a neighborhood in Long Beach, Calif. on Wednesday morning. No injuries were reported.

Responding to a recent claim by the Nuclear Regulatory Commission (NRC) that the Entergy’s Palisades nuclear power plant is at risk of pressurized thermal shock., the Louisiana-based company said the plant "is a safe and secure facility [and has a] license to operate … through 2031."

Southern California Edison (SCE) on Friday released a new technical evaluation that concludes steam generators at its San Onofre Nuclear Generating Station (SONGS) Unit 2 can safely be operated at 100% power. The evaluation reinforces a more conservative plan proposed by the company to federal regulators to operate the unit, which has been shut down since January 2012, at 70% for five months.

A dozen environmental groups on Wednesday called on the U.S. Trade Representative to reconsider a World Trade Organization (WTO) challenge to domestic content rules and subsidies in India’s national solar program, urging it instead to agree to a solution that allows India to support and build its domestic solar industry.

Despite a sharp decrease of Chinese solar module shipments that are now subject to U.S. tariffs, solar photovoltaic (PV) prices continued to fall and installations nationwide grew 76% over 2011 to reach a total nameplate capacity of 3,313 MW in 2012 and an estimated market value of $11.5 billion, a new report from industry group Solar Energy Industries Association (SEIA) shows.

The Environmental Protection Agency (EPA) estimates final regulations curbing greenhouse gas (GHG), mercury, and air toxics emissions from new sources could appear in the Federal Register over the next six weeks. Also forthcoming are final cooling water intake rules and proposed effluent guidelines. The coal ash rule, which has no target date for a final rule, may not be issued this year, the agency said.

The Nuclear Regulatory Commission (NRC) on Monday denied a petition from Unistar Nuclear Operating Services to review an August 2012 decision by the NRC’s Atomic Safety and Licensing Board (ASLB) that found the company was ineligible to obtain a construction and operation license (COL) for its proposed—and then abandoned—Calvert Cliffs 3 EPR because it was completely foreign-owned.

The Federal Energy Regulatory Commission (FERC) and the U.S. Coast Guard within the U.S. Department of Homeland Security on Tuesday signed a memorandum of understanding (MOU) to cooperate with each other on the development of projects that generate power from waves, tides, ocean currents, and the flow of rivers. A group of bipartisan senators, meanwhile, introduced a companion bill to a recently passed House bill that seeks to expand hydropower in the U.S.