EXHIBIT 21.1

SUBSIDIARIES OF THE REGISTRANT

Name of Subsidiary	Country of Incorporation
Active Power (Switzerland) AG	Switzerland
Active Power Solutions Limited	United Kingdom
Active Power (Germany) GmbH	Germany
Active Power (Italy) SrL	Italy
Active Power (Algeria) SARL	Algeria
Active Power (Japan) KK	Japan
Active Power (Hong Kong) Limited	Hong Kong
Active Power (Beijing) Co. Limited	China