P10 Industries (PIOE) 10-K 2005 FY Annual report

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Active Power, Inc. (the “Company”) for the period ending December 31, 2005 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John K. Penver, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13a or 15d, as applicable, of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John K. Penver

John K. Penver

Vice President of Finance and Chief Financial Officer

February 27, 2006

A signed original of this written statement required by Section 906 has been provided to Active Power, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.