December 24, 2010, 11am PST
After years of debate, San Francisco plans to close the diesel- and natural gas-burning Potrero Hill Plant, one of the dirtiest facilities in California, by January 1, reports John Coté.
December 8, 2010, 5am PST
Alternating current (AC) beat out direct current (DC) because it worked well over short distances. But direct current is significantly easier to control on a smart grid and travels better, says Herman J. Trabish.
November 18, 2010, 12pm PST
The California city spent years cultivating an urban forest for shade and cooling benefits, which now presents a unique challenge to tapping the area's solar potential. A new company has a solution.
October 14, 2010, 11am PDT
A controversial $2.5 B wind farm planned off the shores of Cape Cod is touted by supporters as a way to jumpstart the state's green economy. Beth Daley argues the project was rushed to the drawing board despite not making economic sense.
July 30, 2010, 1pm PDT
Diana Powers reports that the cost of solar photovoltaic panels has declined "to the point where they are lower than the rising projected costs of new nuclear plants, according to a paper published this month."
July 7, 2010, 9am PDT
Former California Governor (and current gubernatorial candidate) Jerry Brown may be the only person able to give the state a clean energy policy -- mainly because he's already done it before, according to this article.
March 29, 2010, 7am PDT
One source of renewable energy isn't going to cut it; the future is in using multiple sources, and even combining them in a single power plant, says blogger jnshere.
March 14, 2010, 9am PDT
President Obama has proposed eliminating federal subsidies for fossil fuels in 2011, but for now they're still a $72 billion piece of the pie. Solar, wind and geothermal? $12.2 billion.
February 1, 2010, 1pm PST
As part of a $133 million renovation of a federal building in Portland, the Government Services Administration plans to add 200-foot high "vegetated fins" that will carpet the building with plants and - hopefully - energy savings.
January 7, 2010, 11am PST
Arizona Governor Jan Brewer has come out as a strong proponent of bringing nuclear power back into the state's energy fold.
October 22, 2009, 1pm PDT
A Stanford professor and a UC Davis researcher say we could make the switch to 100% renewable energy by 2030... if we really want to.
October 1, 2009, 11am PDT
Renewable energy production takes a lot of water. With droughts and shortages plaguing many areas, the limited supply could crimp the ability of renewable energy providers to create green energy.
September 16, 2009, 10am PDT
The islands of Hawaii are proving to be a laboratory for renewable energy projects, playing host to a variety of pilot projects that could end up paving the way for the rest of the country's transition to an energy menu with more renewable options.
September 9, 2009, 5am PDT
As the push for renewable energy increases, The Nature Conservancy points out that renewables need a lot of land to work and could cause "energy sprawl."
August 26, 2009, 8am PDT
Small scale hydroelectricity projects are popping up all over the country, especially in remote and environmentally sensitive places.
August 26, 2009, 5am PDT
The ailing auto industry has many manufacturers in the Midwest transitioning to the renewable energy market, opening factories to build wind turbine parts and solar panels.
The Christian Science Monitor
August 25, 2009, 1pm PDT
The goal is to increase California's use of clean, renewable sources of electricity so as to meet the state's climate protection goal. Two bills are being debated that will require that 33% of electricity sources be composed of renewables by 2020.
August 16, 2009, 9am PDT
A new report from an interdisciplinary group of officials and advocates outlines where new energy transmission lines are needed in California, where they should be sited, and how best the state can transition to a renewable energy future.
August 5, 2009, 9am PDT
The City of San Jose, California is on its way to becoming the nation's first energy-independent city, deriving all of its energy from renewable sources.
July 16, 2009, 11am PDT
A new city bike sharing design concept not only gives people access to bikes, but also provides power for the local bus system and even pays riders to do it.
The Christian Science Monitor