December 23, 2018, 7am PST
Move over, Hawaii and California, with your ambitious goals of going to 100 percent renewable electricity generation by 2045. The District's city council passed legislation on Tuesday that sets 2032 as the target to reach 100 percent renewable.
November 17, 2018, 7am PST
Texas doesn't do small, so a new wind power regeneration record must be big.
November 8, 2018, 6am PST
Two western states had very similar renewable energy initiatives on the ballot sponsored by NextGen America requiring utilities to get 50 percent of electricity by 2030. It passed in Nevada but was rejected in Arizona.
October 23, 2018, 12pm PDT
President Trump and his cabinet have been busy rolling back environmental regulations and promoting coal burning, and now they claim credit for a reduction in greenhouse gas emissions last year even greater than in 2016.
October 19, 2018, 10am PDT
Voters in two Western states next month will determine whether to require energy utilities to increase their share of electricity from renewable sources to 50 percent by 2030. In Arizona, the campaign has become the costliest in state history.
September 5, 2018, 12pm PDT
Water is an important part of the thermal energy process – one that we may not think as much about.
July 20, 2018, 12pm PDT
New York Times climate reporter, Brad Plumer, comments on California's landmark accomplishment in reducing emissions, observing that with the low-hanging electricity generation fruit picked, reducing transportation emissions will prove formidable.
July 13, 2018, 9am PDT
It is possible to achieve state-mandated global warming reduction goals after all. The nation's first such goal, signed into law by Republican governor Arnold Schwarzenegger in 2006, called for reducing emissions to 1990 levels by 2020.
June 18, 2018, 6am PDT
Last month the Trump administration directed Energy Secretary Rick Perry to require grid operators to purchase power from aging coal and nuclear power plants, enabling them to keep operating as a matter of "national security." Regulators disagree.
June 4, 2018, 10am PDT
The president hopes to revitalize the nation's sagging coal industry by forcing utilities to purchase power from aging coal and nuclear power plants in the name of national defense. The news is already paying dividends for coal companies.
June 2, 2018, 1pm PDT
A new natural gas power plant promises a revolution in carbon capture.
June 10, 2017, 11am PDT
California is demonstrating that improving the economy and the environment go hand in hand. A new inventory report from the state's Air Resources Board notes changes in gross domestic product, population, and greenhouse gas emissions since 2000.
California Air Resources Board
April 14, 2017, 8am PDT
Nations have sunk billions of dollars into carbon capture and storage for coal plants and have little to show for it. A new natural gas demonstration plant outside Houston is confident it is up to the task — without using federal grants.
January 16, 2017, 9am PST
The country's first "clean coal" facility has also been described as "the world's largest post-combustion carbon capture system."
July 15, 2016, 1pm PDT
A state with many natural advantages for solar power is having a hard time making the business pencil out.
March 25, 2016, 2pm PDT
The overhaul of the U.S. energy grid is already well underway.
February 17, 2016, 2pm PST
Electricity costs in California have risen more than $2 billion from October 2011 to September 2015, according to a new report studying the effects of California's historic drought.
August 5, 2015, 9am PDT
A series of maps from The Washington Post answers the questions of how and where the United States gets its energy.
October 29, 2014, 11am PDT
Around the world, countries are building new dams for hydroelectric power at a frenzied pace. Vox examines the benefits and drawbacks of hydroelectric power.
April 24, 2014, 1pm PDT
Although the United States built less new energy capacity than in the same time period last year, renewable energy dominated the capacity to come online so far in 2014.