Active Power Receives Order from Star Technology Services for Containerised Power System

Active Power, Inc. (NASDAQ: ACPW), inventor and manufacturer of the most energy-efficient critical power systems in the world, has received an order from Star Technology Services for its modular containerised PowerHouse solution. One of the largest independent business to business (Internet service providers) in the United Kingdom, Star will install PowerHouse to provide its new mission critical data centre with energy efficient and reliable critical power protection. The power protection equipment is due to site by end of the year with the new facility expected to go live in spring 2009.

"Energy costs make up approximately 30 percent of Star’s total overhead,” said James Griffin, head of Hosting Strategy for the firm. "In fact, this cost has increased approximately 70 percent in the past 18 months. The fact we’re able to work with one contractor who can provide us a full turnkey power protection package with a high efficiency system is important to us. This high efficiency will directly impact our energy consumption and reduce our energy costs.”

Active Power will deploy the containerised system with its highly modular and expandable CleanSource® UPS (uninterruptible power supply), allowing Star to add capacity to the system as the data centre increases its capacity.

"Energy and space efficiency continue to be extremely important to data centre operators, particularly in the UK,” said Jim Murphy, vice president, Sales, EMEA for Active Power. "With the Star project, Active Power was able to tackle these concerns head on with the deployment of our PowerHouse system. The containerised unit is a continuous power system with rapid deployment capabilities. Energy and space efficiency, modularity, expandability and flexible placement are inherent benefits of the solution.”

Star Technology Services is scheduled to deliver a presentation at DatacenterDynamics London on Wednesday, Nov. 12 at the Royal Lancaster Hotel. The presentation will focus on driving efficiencies through rapidly deployed and right-sized power.

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 centres, healthcare facilities, manufacturing plants, broadcast stations and governmental agencies in more than 40 countries. 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, PowerHouse and PowerCentre are trademarks of Active Power, Inc. All other trademarks are the properties of their respective companies.