Austin, Texas (November 14, 2005) -- Active Power, Inc. (NASDAQ: ACPW) today announced that it has received the 2005 Award for Customer Development Leadership from Frost & Sullivan, a leading backup power industry analyst.

The Frost & Sullivan Award for Customer Development Leadership is presented each year to the company that has demonstrated the most insight into customer needs and product demands. The recipient company has optimized its product line by leveraging its products with the various price, performance and feature points required by the backup power industry. This award recognizes Active Power’s accomplishments in new product introductions, ability to accommodate different market segments by repurposing technology, enhancement of product offerings and strategic technology and marketing alliances.

The award will be officially presented to Active Power’s Chairman and CEO, Joe Pinkerton, during the evening hospitality event Monday, November 14th at the 7x24 Exchange Fall Conference at La Costa Resort in Carlsbad, CA. Active Power’s new product, CoolAir™ DC, based on Active Power’s proprietary Thermal and Compressed Air Storage technology, will also be officially launched at the event.

“After receiving Frost & Sullivan’s award in 2003 for Product Line Strategy, we now feel even more strongly that the path we are blazing in the battery-free reliability market is the correct one,” stated Jim Clishem, President and COO of Active Power. “Coupled with the success of the flywheel over nearly a decade and our revolutionary new CoolAir product, this award validates our position as the undisputed leader in pioneering battery-replacement technologies for the UPS industry.”

About Active Power:
Active Power, Inc. (www.activepower.com) designs, manufactures and markets battery-free backup power products that provide the consistent, reliable electric power required by today's digital economy. An ISO 9001-registered company, Active Power is the first to commercialize a flywheel energy storage system, CleanSource®, that provides a highly reliable, low-cost and non-toxic replacement for lead-acid batteries used in conventional power quality installations. Active Power has also recently developed a new battery-free extended runtime product line (CoolAir™) based on its proprietary thermal and compressed air storage technology. For more information visit www.activepower.com, e-mail info@activepower.com or call toll free 877-BUYACPW (289-2279).


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 our Active Power logo are registered trademarks of Active Power, Inc.  All other trademarks are the properties of their respective companies.


Active Power Contacts:
Michael Chibib
Investors
512.744.9453
mchibib@activepower.com

Derek Jones
Corporate Communications
512.744.9210
djones@activepower.com