From left to right: Alex Hinojosa, North American Development Bank deputy managing director, Bob Powell, North America, SunEdison Solar Energy president, U.S. Air Force Col. Kevin E. Blanchard, 355th Fighter Wing commander, Bill Green, MIC Solar Energy Holdings LLC chief executive officer, G…
Solar panels collect sunlight at Davis-Monthan Air Force Base, Ariz. The Davis-Monthan solar array project is placed on 170 acres of underutilized land, making this the largest of its kind on any U.S Department of Defense installation. The Air Force has stated a goal to increase renewable en…
State utility regulators are considering plans to waive — or possibly eliminate — a mandate that Tucson Electric Power Co. and other utilities get a certain amount of renewable energy from rooftop solar installations.
The U.S. economy is still weak, with 7 percent unemployment, many millions underemployed and fewer people employed in November than six years ago.
Weekes, a pioneer of gamma-ray astronomy, searches for the enormously energetic particles coming from pulsars, supernovae and black holes.
It took eight long years, but Tombstone finally blasted its way onto True West Magazine’s Top 10 True Western Towns for 2014. Tombstone comes in at No. 9, while Dodge City, Kan., takes the top spot.
Gisele Bundchen hugs her mother Vania as she sits on a "Snowmobike" in the Duracell Power Lodge, surrounded by her sisters. Patricia Bundchen, seen far left, is Gisele's twin. (PRNewsFoto / Procter & Gamble, Stuart Ramson)
The University of Arizona Tech Park will add a new solar-farm design to its solar-technology demonstration area next year, with the addition of a one-megawatt concentrating photovoltaic array.
State utility regulators approved new fees for Arizona Public Service Co. customers with solar-energy systems, in a decision that could ultimately affect solar customers in Tucson.
Singer-songwriter Chris Jamison has been getting to know Arizona one winery at a time.
Whether you are in favor of Rosemont Copper or opposed, your decision ought to be based on the most current facts.
The Arizona Game and Fish Department will get about $10 million over a decade from Rosemont Copper for land, water rights and wildlife projects to compensate for impacts of the proposed Rosemont Mine, the department announced Tuesday.
When Congress expanded the Renewable Fuel Standard in 2007, it did so with three important policy objectives in mind.
How did we reach the point where the government is promoting a dreadful fuel that gets worse fuel economy than gasoline or diesel, drives up food prices, damages car engines and has unintended environmental consequences?
A controversial dirt lot in downtown Tucson could finally see some long-anticipated construction now that lawsuits among the developer, city and Rio Nuevo Board are settled.
A German energy giant dedicated its first solar-energy installations in the U.S. on Monday under sunny skies in Tucson.
A 1950s church school building near downtown is getting a new life as a corporate headquarters.
There is not enough water. Supplies are decreasing due to drought conditions and demand is increasing.
A decision by state regulators to halt a move toward retail electric competition was met with relief by opponents and dismay by backers who said they will continue to press the issue.
If you live in an older home, Southwest Gas may be willing to replace your natural-gas lines — for free.