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Iowa

ENN

Muscatine, Iowa, residents to receive pollution warnings

Residents of an Iowa county that has made national headlines for its struggles with air pollution will now receive electronic warnings when air quality poses a health hazard.

By B. Adam Burke . 28 June 2012
ENN

Habitat homes achieve efficiency and affordability

As energy efficiency advocates press for tougher energy codes in Minnesota, Illinois and elsewhere, they're pointing to affordable housing supporters such as Habitat for Humanity to help make their case.

7 May 2012
ENN

Foundries twisting in breeze over wind tax credit

Even though over 150 American foundries have shut down since the start of the current economic crisis, a group of entrepreneurs believe they can help revive the industry by supplying large, metal components for wind turbines.
Photo by Mark Bridge via Creative Commons

By Brian Rogal . 27 March 2012
ENN

Critic: Nuclear power risks greater than advertised

Arjun Makhijani, author of Carbon-Free and Nuclear-Free: A Roadmap for U.S. Energy Policy, says nuclear power proponents are underestimating the risks and overselling its reliability.

12 March 2012
ENN

Could sweet sorghum dethrone corn as biofuel king?

A Chicago biotech company that’s working to genetically engineer varieties of sweet sorghum that would convert sugar to biofuel before it even leaves the plant, while using half as much water to grow as corn.
Photo by ILRI via Creative Commons

9 February 2012
ENN

Iowa State professor puts electric motors on a diet

Dionysios Aliprantis thinks current electric motors are just too big. Secondly, it’s his contention that they simply don’t work hard enough. Too fat. Too lazy.

By Guest Contributor . 8 February 2012
ENN

Energy storage creates many winners, so who pays?

The benefits of energy storage projects are far reaching, from reduced maintenance costs at power plants to less price volatility for electricity customers. That raises a tricky market question for pumped-hydro, compressed air and other types of energy storage projects: Who should pay for them?

23 January 2012
ENN

Scrapped Iowa project leaves energy storage lessons

After years of study, investors concluded Iowa's sandstone aquifers aren't suitable for compressed-air energy storage. However, the research leaves behind promising economic findings and lessons for other energy storage projects.

19 January 2012
ENN

Renewable or not? How states count hydropower

When is hydropower a renewable energy source? The answer, at least from a policy perspective, depends on the state.

13 January 2012
ENN

Tiny turbines help Iowa researchers test wind

Engineers at Iowa State University in Ames are using tiny, 10-inch wind turbine models to test how hills, valleys and turbine placement can affect the power output of wind farms

14 December 2011

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