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EXHIBIT 23.1
Consent of Independent Auditors
We consent to the incorporation by reference in the Registration Statement (Form
S-8) pertaining to the 2000 Stock Incentive Plan and 2000 Employee Stock
Purchase Plan of Active Power, Inc. of our report dated February 26, 2000
(except for Note 12, as to which the date is July 13, 2000), with respect to the
financial statements of Active Power, Inc. included in its Registration
Statement on Form S-1 (Registration No. 333-36946) filed with the Securities and
Exchange Commission.
/s/ ERNST & YOUNG LLP
Austin, Texas
August 7, 2000
