Active Power, Inc. (NASDAQ: ACPW), inventor and manufacturer of the most energy-efficient critical power systems in the world, today announced that it has deployed a total of 2.4 megawatts of CleanSource UPS (uninterruptible power supply) systems to Data Cave, Inc., a full service collocation datacenter facility based in Columbus, Ind. Data Cave initially deployed two of Active Power’s expandable 600 kVA UPS systems in June 2009. In September, Data Cave added additional modules of high efficiency UPS capacity to double the power capability of each system to 1200 kVA.

“We approach our power infrastructure plan with an eye on the high nines,” said Caleb Tennis, president, Data Cave. “Active Power was a no brainer, knowing our customers demand high efficiency and reliability. Because of its modular product design, we seamlessly doubled the capacity of each UPS system. This enables us to power more mission critical equipment with the same amount of run time. The UPS systems provide ample time for the generators to fire up and provide power to the load.”

“Active Power offers a highly modular UPS system so customers are able to quickly make expansions in the field when more power is required which is one of our key differentiators compared to competitive UPS systems,” said Gary Rackow, vice president, Sales, for the Americas. “Customers are able to add additional capacity as business and IT needs evolve. Besides modularity, mission critical organizations recognize the inherent benefits of the Active Power system and are choosing to deploy our product to reap these benefits which include increased reliability, energy and space efficiency and modularity.”

A tier IV datacenter facility, Data Cave is a custom purpose built center designed to withstand large scale natural disasters including tornadoes, floods, earthquakes and thunderstorms. The 84,000 square foot facility has in place completely redundant architecture including cooling, electrical power distribution and networking infrastructure. The facility's multiple data suites are each segregated within the center which provides increased security in addition to key card access, biometric hand scanners and video surveillance.

To learn more about the UPS expansion project and its progress, refer to Data Cave’s blog here.

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 datacenters, 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 and PowerHouse are trademarks of Active Power, Inc. All other trademarks are the properties of their respective companies.