Active Power Receives Industry Recognition for Product Innovation and Economically Green Attributes.

Containerized Power System Named Finalist in Inaugural European Green IT Awards; CoolAir[R] Receives Network World's 2008 Category-Breaker Award

AUSTIN, Texas -- Critical backup power systems inventor and manufacturer Active Power, Inc. (NASDAQ: ACPW), today announced PowerCentre[TM], its containerized power system solution and CoolAir, its backup power and cooling product each received industry accolades. PowerCentre has been named a finalist for the inaugural European Green IT Awards in the category of 'New Green IT Product by an Established Vendor.' In addition, Network World recognized CoolAir as a 2008 Category-Breaker Award winner, part of the magazine's annual Best Products package.

The company's PowerCentre solution is one of five finalists in the 'New Green IT Product' category. Hosted by Lansdown Event Management, the European Green IT Awards recognize organizations and individuals that have demonstrated innovation and drive in green IT. Winners will be announced on March 13 during an awards dinner and program at the European Green IT Summit held in London.

PowerCentre is a complete continuous power system packaged in a standard size shipping container. The system consists of a standby engine, switchgear and the Active Power integrated flywheel based uninterruptible power supply (UPS) system. The system can be deployed in a number of environments and is mobile, meaning it can quickly be disconnected and redeployed at another location in a short period of time. Last year, Active Power delivered its containerized mobile power systems to several European based customers delivering more than 10 megawatts (MW) of critical power protection. One of the deployments was for a disaster recovery application where Active Power delivered a total of 7.6 MW of power.

"To be nominated as a finalist in this inaugural awards program is an honor, particularly among several well known brands in the IT market," said Jim Murphy, vice president, Sales for EMEA and APAC for Active Power. "Data centre operators are striving for improved efficiencies at a lower total cost of ownership without compromising reliability. They're also faced with increasingly power hungry servers that require more power in smaller spaces. Power Centre is able to address these concerns in a space saving containerized package."

For the Network World 2008 Category-Breaker Award, winners were selected by columnists and bloggers and announced on Feb. 25, 2008. The full Network World article can be found at http://www.networkworld.com/bestproducts/2008/. Active Power offers the only commercially available UPS solution that provides both backup power and backup cooling.

"The Category-Breaker award winners we selected represent some of the very best products that address the industry's biggest pain points," said James Gaskin, a columnist for Network World as well as a technology consultant and speaker (www.gaskin.com). "Active Power's solution solves a big concern, particularly among data center operators."

About Active Power

Active Power (NASDAQ: ACPW) provides efficient, reliable and green critical power solutions and uninterruptible power supply (UPS) systems to enable business continuity in the event of power disturbances. Founded in 1992, Active Power's flywheel-based UPS systems protect critical operations in data centers, healthcare facilities, manufacturing plants, broadcast stations and governmental agencies in more than 40 countries. Active Power also offers CoolAir, the only solution that provides both backup power and backup cooling. With expert power system engineers and worldwide services and support, Active Power ensures organizations have the power to perform. For more information, please visit www.activepower.com.

Cautionary Note Regarding Forward-Looking Statements 

This release may contain forward-looking statements that involve risks and uncertainties. Any forward-looking statements and all other statements that may be made in this news release that are not historical facts are subject to a number of risks and uncertainties, and actual results may differ materially. Specific risks include delays in new product development, product performance and quality issues and the acceptance of our current and new products by the power quality market. Please refer to Active Power filings with the Securities and Exchange Commission for more information on the risk factors that could cause actual results to differ.

Active Power, CleanSource and CoolAir are registered trademarks of Active Power, Inc. The Active Power logo is a trademark of Active Power, Inc. All other trademarks are the properties of their respective companies.