PLUG POWER INC — Director's Dealing 2011

May 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLUG POWER INC (PLUG)
CIK: 0001093691
Period of Report: 2011-05-12

Reporting Person: GARBERDING LARRY (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-12	Option to Purchase Plug Power Common Stock	$0.51	A	15000	Acquired	2021-05-12	Plug Power Common Stock (15000)	Direct

Footnotes

F1: Awarded pursuant to Plug Power's 2009 Non-Employee Director Compensation Plan.

F2: Consists of an option to acquire common stock granted on May 12, 2011 with respect to which: 15,000 shares will become exercisable one year from the grant date provided that the non-employee director has remained as a director of the Company during that one-year period.