City of Sheboygan Wins Sustainability Best Practices Award at Wastewater Treatment Plant

CHATSWORTH, Calif., July 7, 2011 (GLOBE NEWSWIRE) -- Capstone Turbine Corporation (www.capstoneturbine.com) (Nasdaq:CPST), the world's leading clean technology manufacturer of microturbine energy systems, today announced that the City of Sheboygan, Wisconsin received a prestigious award from the Great Lakes and St. Lawrence Cities Initiative (GLSLCI) for nearing self-sufficiency at its wastewater treatment plant using Capstone microturbines.

The city of Sheboygan was the only GLSLCI member city in the U.S. and Canada to receive the Wege Small Cities Sustainability Best Practices Award, which recognizes GLSLCI member cities working to protect the Great Lakes and St. Lawrence River, restore them, and improve the quality of the water resources for future generations. GLSLCI is a bi-national coalition of mayors and other local officials that work actively with federal, state, and provincial governments.

Rather than flare excess methane gas – the byproduct from sewage treatment processes that has a greenhouse gas impact on the atmosphere 21 times greater than carbon dioxide – the Sheboygan plant uses the methane to fuel 10 Capstone C30 and two C200 microturbines in a combined heat and power (CHP) application. Using waste methane as fuel, the microturbines fulfill 90 percent of the plant's annual energy needs and nearly eliminate the need to purchase natural gas for heating.

"We wanted something that made sense for the bottom line and the environment," said Dale Doerr, the plant's Superintendent. "The Capstone cogeneration system helps protect the environment and keep our costs down."

"Sheboygan is an example of how municipalities are leveraging Capstone microturbines to meet their sustainability goals," said Jim Crouse, Capstone's Executive Vice President of Sales and Marketing. "Capstone microturbines operate on renewable fuels worldwide at wastewater treatment plants, landfills, farms, and food processing facilities to cut costs and significantly reduce greenhouse gas emissions."

"Sheboygan is one of the most progressive cities in the country when it comes to using renewable energy sources," said Bob Ryan, Sheboygan Mayor. "Using Capstone microturbines, our sewage treatment plant produces more electricity than we use so we sell it back to the grid. If that's not sustainability, I don't know what is."

About Capstone Turbine

Capstone Turbine Corporation (www.capstoneturbine.com) (Nasdaq:CPST) is the world's leading producer of low-emission microturbine systems, and was the first to market commercially viable microturbine energy products. Capstone Turbine has shipped over 5,000 Capstone MicroTurbine(R) systems to customers worldwide. These award-winning systems have logged millions of documented runtime operating hours. Capstone Turbine is a member of the U.S. Environmental Protection Agency's Combined Heat and Power Partnership, which is committed to improving the efficiency of the nation's energy infrastructure and reducing emissions of pollutants and greenhouse gases. A UL-Certified ISO 9001:2008 and ISO 14001:2004 certified company, Capstone is headquartered in the Los Angeles area with sales and/or service centers in the New York Metro Area, Mexico City, Nottingham, Shanghai and Singapore.

The Capstone Turbine Corporation logo is available at https://www.globenewswire.com/newsroom/prs/?pkgid=6212

This press release contains "forward-looking statements," as that term is used in the federal securities laws, about our ability to help municipalities reach their sustainability goals, reduced costs and the environmental advantages of our products. Forward-looking statements may be identified by words such as "expects," "objective," "intend," "targeted," "plan" and similar phrases. These forward-looking statements are subject to numerous assumptions, risks and uncertainties described in Capstone's filings with the Securities and Exchange Commission that may cause Capstone's actual results to be materially different from any future results expressed or implied in such statements. Capstone cautions readers not to place undue reliance on these forward-looking statements, which speak only as of the date of this release. Capstone undertakes no obligation, and specifically disclaims any obligation, to release any revisions to any forward-looking statements to reflect events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

"Capstone Turbine Corporation" and "Capstone MicroTurbine" are registered trademarks of Capstone Turbine Corporation. All other trademarks mentioned are the property of their respective owners.

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Released July 7, 2011