UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

June 29, 2015

Commission File Number: 000-53543

Ballard Power Systems Inc.

Canada

(Jurisdiction of incorporation or organization)

9000 Glenlyon Parkway

Burnaby, BC

V5J 5J8

Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: o Form 20-F     x Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934: o

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Ballard Power Systems Inc.
Date: June 29, 2015	By:	/s/ Tony Guglielmin
	Name:	Tony Guglielmin
	Title:	Chief Financial Officer

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EXHIBIT INDEX

Exhibit  No.	Description
99.1	News Release Dated June 29, 2015 — Ballard Announces Acquisition of Protonex

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