A draft plan on the solar potential of federal land identifies three Arizona sites encompassing nearly 14,000 acres as highly suitable for energy development.

Dale Whiting: The debate over the future of U.S. energy policy has become more vocal. Opponents of carbon emission cap-and-trade claim implementation will increase the average home energy bill by $1,700 per year.

Arizona has plenty of sun and just as great a need for new housing.

The Salt River Project board of directors approved a plan Monday to increase the utility’s use of renewable energy to supply its electricity customers.

Scottsdale has received the governor’s top award for energy efficiency for its landmark Green Building Program.

Scottsdale has received the governor’s top award for energy efficiency for its landmark Green Building Program.

Tempe Mayor Hugh Hallman is minutes away from throwing out the first baseball at a spring training game when longtime Councilman Ben Arredondo suspects something is seriously amiss with the city's top elected official.Arredondo reminds the mayor that it's 3 p.m. on a warm day. He stares in disbelief when he spots what Hallman is about to sip.

Renewable energy is all the rage these days. With gasoline prices rising, with greenhouse gases and global warming at the forefront of public concern, the lure of pollution-free energy from windmills, photovoltaic solar panels and geothermal wells has never been stronger.

Arizona Public Service wants to make sure all eligible low-income customers are participating in its energy discount programs.

The future of a mandate to use more renewable energy — and force Arizona customers to pay more to buy it — could be in the hands of Gov. Janet Napolitano.

A draft alternative energy plan prepared by the staff of Salt River Project proposes that the utility acquire 15 percent of its electricity from sustainable energy sources such as wind and solar by 2025, up from 2 percent now.

If ever there was a time to consider alternative sources of energy, this is it. Demand for oil is soaring and so is its price, so much so that economists fear inflation and other serious economic fallout.

Earth Day will mark a shift in direction for the 35-year-old Valley Forward business and civic organization.

Marvin Morrison, a Gilbert pioneer whose philanthropy and vision played a key role in development, education and planning in the East Valley, died Monday at the age of 83.

PARK CITY, Utah -- Cabinet members of the Obama administration vowed on Monday to help Western states develop a robust system for delivering renewable power.

U.S. Department of Energy said Tuesday it will fund research on a process developed by a Gilbert company that turns coal into synthetic gas.

The United States should put the same emphasis in developing alternative fuels this decade as it did in developing a lunar mission in the 1960s and the atom bomb in the 1940s, said Democratic Senate candidate Jim Pederson.

Standing at a gas station where regular unleaded was selling for $3.49 a gallon, Republican congressional candidate Dave Schweikert challenged opponent Rep. Harry Mitchell, D-Ariz., to help promote more domestic oil drilling.

The United States, like any forward-thinking investor, needs to diversify its energy portfolio. The country is not going to be able to drill its way out of this energy crisis; oil will not save us.

Arizona Corporation Commissioner Kris Mayes said Monday she wants the state's electric utilities to push harder to develop renewable energy sources such as solar, wind, geothermal and biomass.

Even before construction has started on a solar energy farm in Queen Creek, the planned facility has been sold for $75 million.