Active Power Celebrates 2,000th Flywheel Shipment

Active Power (NASDAQ: ACPW), inventor and manufacturer of the most energy efficient critical power systems in the world, today announced the shipment of its 2,000th flywheel. The UPS (uninterruptible power supply) system containing the 2,000th flywheel was purchased by Active Powers OEM partner Caterpillar Inc. (NYSE: CAT) to support an application in the solar power sector. With this shipment, Active Power will have deployed more than 500 megawatts of flywheel UPS power protection to customers around the world with more than 50 million hours of runtime in the field.

We are thrilled to celebrate this important milestone with our employees, partners and customers worldwide, said Jim Clishem, president and CEO, Active Power. This sale represents the best of everything we do including high quality manufacturing of efficient and reliable systems; a strong sales partnership with Caterpillar; and promoting environmental sustainability. Because of the increasingly widespread market acceptance of flywheel UPS systems, Active Power is in an even stronger position to compete and win projects against conventional battery UPS suppliers.

These energy efficient and inherently reliable flywheel based UPS systems will protect the end users sensitive manufacturing processes from electrical disturbances. The units are also part of a larger deployment of similar systems that total six megawatts of green backup power protection.

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 Powers flywheel-based UPS systems protect critical operations in data centers, 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

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, the Active Power logo, CleanSource and CoolAir are trademarks of Active Power, Inc. All other trademarks are the properties of their respective companies.


Active Power
Investor Contact:
John Penver, 512-744-9234
Chief Financial Officer
Media Contact:
Lee Higgins, 512-744-9488
Public Relations Manager

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