Japan’s scramble to replace generation lost from nuclear power plants that were shuttered after the March 2011 Fukushima Daiichi nuclear accident has forced it to rely on pricey imports of fossil fuels—and soaring energy costs are hammering the world’s third-largest economy.

More and more electricity is generated by natural gas. This trend is likely to persist. Hydraulic fracturing technology is increasing domestic supplies and enabling natural gas prices to remain at historic lows.

A pervasive drought in northeast Brazil has dried up power supplies from the region’s hydropower facilities, making the area prone to blackouts and crippling economic growth in one of the country’s emerging agricultural havens.

The use of low-grade coal is becoming synonymous with circulating fluidized bed (CFB) power plants. Although CFB technology may often be a better choice than pulverized coal technology, that is not always the case. Owners and developers need to consider several technical and economic factors before making this decision.

Selected business news and deals in the power generation industry.

Covanta Energy and the City and County of Honolulu recently completed a $300 million expansion of a 20-year-old waste-to-energy (WTE) facility. The plant is now capable of processing up to 3,000 tons of municipal refuse daily, recycling all the metals, and generating up to 90 MW—enough to supply nearly 10% of Oahu’s electricity.

A 20-MW facility in Ford Heights, Ill., that burns waste tires to produce power is to be shut down to resolve allegations by the Environmental Protection Agency (EPA) of Clean Air Act violations.

Dr. Steven Chu gave what was likely his last public speech as U.S. secretary of energy today on the last day of the ARPA-E Energy Innovation Summit. As usual for Chu presentations, it was a mix of data, vision, and humor. It fell to others to comment on the value and legacy of his service, especially to energy research and development.

Southern California Edison now expects the Nuclear Regulatory Commission to decide in late April or May whether or not the 2,300-MW San Onofre Nuclear Generating Station (SONGS) Units 2 and 3 may restart in time for this summer’s demand season.

The Advanced Research Projects Agency-Energy (ARPA-E) may be the most important federal agency many in the power industry have never heard of. Whatever generation technology you are associated with, ARPA-E’s work will affect its future.