Exhibit 31.1
I, Andrew Marsh, certify that:
1. I have reviewed this annual report on Form 10-K/A of Plug Power Inc.;
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
Date: May 1, 2017 | by: | /s/ ANDREW MARSH |
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| Andrew Marsh |
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| Chief Executive Officer |
