O&M

Invensys Powerware Division and Active Power Inc. augment global distribution agreement

RALEIGH, NC, Sep 11, 2001 — Invensys Powerware Division and Active Power Inc., today announced a new agreement that will expand their relationship to distribute Active Power’s next-generation flywheel product, CleanSource2.

The new CleanSource2, developed by Active Power, will be distributed through Powerware’s global sales force.

Powerware will offer the CleanSource® battery-free technology with its three phase uninterruptible power systems (UPS), delivering a totally integrated world-class power solution. Under the terms of the agreement, Powerware has committed to actively promote the CleanSource product line through defined sales and marketing programs and is the only UPS company within the United States that will have access to this new flywheel product.

“This agreement gives us a competitive advantage by providing us with a differentiated product offering, and allows us to offer well-rounded power protection solutions,” said Angelo Mandarino, vice president, commercial sales, Powerware. “By offering the CleanSource technology in addition to our comprehensive product portfolio, we are giving our customers added reliability – as a battery-free option or an enhancement to their existing UPS/battery system.”

Powerware Global Services will provide service for the integrated systems, offering a seamless, single point of contact. Powerware Global Services features a 7 x 24 call center, product training, a worldwide spare parts logistics network, and more than 2000 dedicated service professionals around the globe. In addition, both models of the CleanSource2, the 250kW and the 500kW, can be monitored with Powerware’s Foreseer software to identify problems, execute corrective action and prevent failures.

“We are pleased to provide our battery-free technology through the Powerware sales force. In high-availability, redundant applications, the flywheel supplements the UPS system and batteries, further enhancing operational integrity,” said Mark Ascolese, senior vice president of business development, Active Power. “With over one million hours of reliable field operation in a variety of applications, CleanSource is a proven technology that will enhance Powerware’s solutions.”

Additional information on the complete portfolio of products and services offered by Powerware can be found on the company’s Web site at: www.powerware.com.

About Invensys Powerware

Invensys Powerware Division is a participant in the power solutions industry. Invensys Powerware integrates a full line of AC and DC power systems, power conversion products, standby batteries, telephone line surge suppression, power management software, remote monitoring, turnkey integration services and site support.

Powerware systems and services increase enterprise-wide systems availability and are utilized in local and wide area networking, data and voice over IP, colocation facilities, fixed-line and wireless communication networks, and industrial manufacturing. Invensys Powerware Division is headquartered in Raleigh, N.C., and is part of Invensys plc. Invensys plc is headquartered in London, England, and operates in all regions of the world through four focused divisions – Software Systems, Automation Systems, Powerware Division and Control Systems.

About Active Power

Active Power, Inc. (www.activepower.com) designs, manufactures and markets battery-free power quality products that provide the consistent, reliable electric power required by today’s digital economy.