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Exelon has launched a series of planned power uprates across the company’s nuclear fleet that will generate between 1,300 MW and 1,500 MW of additional generation capacity—equal to a new reactor—within eight years.

Canada last week marked a major milestone in its move toward establishing a national carbon market by laying down the rules for a federal greenhouse gas offset system.

A report released on Monday by the Western Governors’ Association (WGA) and the U.S. Department of Energy (DOE) as part of the Western Renewable Energy Zones (WREZ) initiative identifies 36 areas in the Western Interconnection that have the potential both for large-scale development of renewable resources and low environmental impacts.

China’s Ministry of Environmental Protection (MEP) last week halted construction of two major hydroelectric projects on the Jinsha River for inadequate environmental reviews. The order has thrown into question a 200 billion yuan (US$29.2 billion) investment in hydro projects along the middle reaches of the river.

A superior court judge from Maricopa County, Ariz., has accepted jurisdiction to decide whether the Arizona Corporation Commission (ACC), a state regulatory body, has constitutional and statutory authority to adopt and implement renewable energy standards across the state.

An administrative law judge presiding over hearings on an appeal of an air permit granted by the Arkansas Department of Environmental Quality (ADEQ) to the $1.6 billion ultrasupercritical John W. Turk, Jr. Power Plant proposed for Hempstead County, Ark., on Monday threw out arguments by environmentalists questioning whether carbon dioxide emissions from the plant were properly considered.

Babcock & Wilcox Co. (B&W) entered the race to commercialize small-nuclear reactors today, unveiling the mPower, a modular 125-MW Generation III nuclear reactor that can be scaled to produce up to 750 MW.

U.S. Energy Secretary Steven Chu laid out the Obama administration’s position on nuclear energy, nuclear waste storage, and carbon sequestration at a House Energy and Water Development Appropriations Subcommittee last week.

A federation of Japanese power companies last week reportedly asked member companies to “rethink plans” to power the country’s nuclear plants with mixed oxide (MOX) fuel because many plants are unlikely to launch plutonium generation within the next three years, as expected.

European heavyweights Alstom and Siemens could vie to bid for AREVA’s transmission and distribution (T&D) business if the French state-controlled giant puts it up for sale to plug a €12 billion gap and finance its investments, market research group Frost & Sullivan said last week.