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<title>Plug Power Form 8-K</title>


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<div style='page:Section1;'>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b><font style="font-size: 13.5pt">&nbsp;</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b><font style="font-size: 13.5pt">&nbsp;</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b><font style="font-size: 13.5pt">UNITED STATES</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b><font style="font-size: 13.5pt">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b>Washington,
D.C. 20549</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>_______________________________</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b><font style="font-size: 18.0pt">FORM 8&#8209;K</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b>CURRENT
REPORT</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt;text-align:center'><b>Pursuant
to Section 13 or 15(d) of the<br>
Securities Exchange Act of 1934</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b><i>__________________________________</i></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>&nbsp;</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>Date of Report (Date
of earliest event reported):&nbsp; March 22, 2012</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

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  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
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  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b><font style="font-size: 14.0pt">PLUG POWER INC.</font></b></p>
  </td>
  <td valign=top style='padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
  </td>
 </tr>
</table>

</div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:.25in;text-align:center'><b><font style="font-size: 10.0pt">(Exact name of registrant as specified in charter)</font></b></p>

<div align=center>

<table class=MsoNormalTable border=0 cellpadding=0
 style='margin-left:0pt;border-collapse:collapse' width="85%">
 <tr>
  <td width=174 valign=top style='width:33%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>Delaware</b></p>
  </td>
  <td width=213 valign=top style='width:34%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>1-34392</b></p>
  </td>
  <td width=182 valign=top style='width:33%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>22-3672377</b></p>
  </td>
 </tr>
 <tr>
  <td width=174 valign=top style='width:33%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>(State or Other <br>
  Jurisdiction<br>
  of Incorporation)</p>
  </td>
  <td width=213 valign=top style='width:34%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>(Commission File
  Number)</p>
  </td>
  <td width=182 valign=top style='width:33%;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>(IRS Employer<br>
  Identification No.)</p>
  </td>
 </tr>
</table>

</div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-top:.25in;text-align:center'><b><u>968
Albany Shaker Road, Latham, New York&nbsp; 12110<br>
</u></b><b><font style="font-size: 10.0pt">(Address of Principal Executive
Offices)&nbsp; (Zip Code)</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-top:.25in;text-align:center'><b><u>(518)
782-7700<br>
</u></b><b><font style="font-size: 10.0pt">(Registrant&#146;s telephone number,
including area code)</font></b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>Check the
appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions (<i>see </i>General Instruction A.2. below):</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<font face="Wingdings">o</font>&nbsp;&nbsp; Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<font face="Wingdings">o</font>&nbsp;&nbsp; Soliciting material
pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<font face="Wingdings">o</font>&nbsp;&nbsp; Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<font face="Wingdings">o</font>&nbsp;&nbsp; Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:justify;line-height:13.0pt'>&nbsp;</p>
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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">
2</p>

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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><b>Item 1.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Entry into a Material Definitive
Agreement.</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-indent:.5in'>&nbsp;</p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>
On March 23, 2012, Plug Power Inc. (the &#147;Company&#148;) entered into an underwriting
agreement (the &#147;Underwriting Agreement&#148;) with Roth Capital Partners, LLC as the
sole manager (the &#147;Underwriter&#148;), related to the public offering of an aggregate
of 13,000,000 shares of the Company's common stock, par value $0.01 per share
(&#147;Common Stock&#148;), at a public offering price of $1.15 per share, less the
underwriting discounts and commissions payable by the Company (the &#147;Offering&#148;).&nbsp;
The Underwriter will purchase the Common Stock at a discounted price of $1.0695
per share, representing a seven percent (7.0%)
discount to the public offering price.&nbsp; The Company has granted the Underwriter
the option to purchase, at the same discounted price, an aggregate of up to an
additional 1,950,000 shares of Common Stock as may be necessary to cover
over-allotments made in connection with the Offering.&nbsp; </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>The Offering is expected to close on March 28, 2012,
subject to the satisfaction of customary closing conditions.&nbsp; The net proceeds
to the Company are expected to be approximately $13,603,500 after deducting
underwriting discounts and commissions and estimated expenses payable by the
Company associated with the Offering.&nbsp; The Offering is being made pursuant to
the Company&#146;s existing shelf registration statement on Form S-3 (File No.
333-173268), which was filed with the Securities and Exchange Commission (the
&#147;Commission&#148;) on April 1, 2011 and declared effective by the Commission on
April 8, 2011 and is described in more detail in a prospectus supplement dated
March 22, 2012 and to be filed with the Commission on March 23, 2012 and an
accompanying base prospectus dated April 1, 2011. </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>The Underwriting Agreement contains customary
representations, warranties, and agreements by the Company, and customary
conditions to closing, indemnification obligations of the Company and the
Underwriter, including for liabilities under the Securities Act of 1933, as
amended, other obligations of the parties, and termination provisions. </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>Pursuant to the Underwriting Agreement, the Company agreed,
subject to certain exceptions, not to offer, issue or sell any shares of Common
Stock or securities convertible into or exercisable or exchangeable for shares
of Common Stock for a period of ninety (90) days following the Offering without
the prior written consent of the Underwriter. </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>The Underwriting Agreement has been attached hereto as an
exhibit to provide investors and security holders with information regarding
its terms.&nbsp; It is not intended to provide any other factual information about
the Company.&nbsp; The representations, warranties and covenants contained in the
Underwriting Agreement were made only for purposes of the Underwriting
Agreement and as of specific dates, were solely for the benefit of the parties
to the Underwriting Agreement, and may be subject to limitations agreed upon by
the contracting parties, including being qualified by confidential disclosures
exchanged between the parties in connection with the execution of the
Underwriting Agreement. </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>A copy of the opinion of Goodwin Procter LLP relating to
the legality of the issuance and sale of the securities in the Offering is
attached as Exhibit 5.1 hereto.&nbsp; A copy of the Underwriting Agreement is filed
herewith as Exhibit 1.1 and is incorporated herein by reference.&nbsp; The foregoing
description of the Offering by the Company and the documentation related
thereto does not purport to be complete and is qualified in its entirety by
reference to such Exhibit. </p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
<p style='margin-top:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";' align="center">3</p>

<div style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>

<hr size=2 width="100%" noshade color=navy align=center>

</b></div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

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<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><b>Item 9.01&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial Statements and Exhibits</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><b>&nbsp;</b></p>

<table border="0" style="border-collapse: collapse" width="100%" id="table1">
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">(d)</td>
		<td width="90%" valign="bottom">

<p style='margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"; margin-top:0'>Exhibits. </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
		<td width="90%" valign="bottom">

<p style='margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman";page-break-after:avoid; margin-top:0'>&nbsp;</p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">1.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman";'>Underwriting
Agreement dated as of March 23, 2012 by and between Plug Power Inc. and Roth
Capital Partners, LLC </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">5.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Opinion of Goodwin Procter LLP </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">23.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Consent of Goodwin Procter LLP (contained in
Exhibit 5.1) </p>

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		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
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	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">99.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Press release of Plug Power Inc. issued March 22,
2012 </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">99.2</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Press release of Plug Power Inc. issued March 23,
2012</p>

		</td>
	</tr>
</table>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";page-break-after:avoid'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">4</p>

<div style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>

<hr size=2 width="100%" noshade color=navy align=center>

</b></div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<br clear=all
style='page-break-before:always'>


<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:12.0pt'><font style="font-size: 10.0pt">&nbsp;</font></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:24.0pt;text-align:center'><b>SIGNATURES</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:6.0pt;text-indent:.5in'>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 hereunto duly
authorized.</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:6.0pt;text-indent:.5in'><font style="font-size: 10.0pt">&nbsp;</font></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-bottom:6.0pt;text-indent:.5in'><font style="font-size: 10.0pt">&nbsp;</font></p>

<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%"
 style='width:100.0%;border-collapse:collapse'>
 <tr>
  <td style='padding:0in 0in 0in 0in' width="40%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
  </td>
  <td style='padding:0in 0in 0in 0in' width="60%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:13.65pt'>PLUG POWER INC.</p>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:13.65pt'>&nbsp; </p>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:13.65pt'>&nbsp; </p>
  </td>
 </tr>
 <tr>
  <td style='padding:0in 0in 0in 0in' width="40%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>Date:&nbsp; March 23, 2012</p>
  </td>
  <td style='padding:0in 0in 0in 0in' width="60%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:13.65pt'>By:&nbsp;&nbsp;
	<u>/s/ Andrew Marsh&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
	</u></p>
  </td>
 </tr>
 <tr>
  <td style='padding:0in 0in 0in 0in' width="40%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
  </td>
  <td style='padding:0in 0in 0in 0in' width="60%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:36.35pt'>Andrew Marsh</p>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:36.35pt'>Chief Executive Officer.</p>
  </td>
 </tr>
 <tr>
  <td style='padding:0in 0in 0in 0in' width="40%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>
  </td>
  <td style='padding:0in 0in 0in 0in' width="60%">
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:13.65pt'>&nbsp;</p>
  </td>
 </tr>
</table>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:.5in'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">
5</p>

<div style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>

<hr size=2 width="100%" noshade color=navy align=center>

</b></div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<br clear=all
style='page-break-before:always'>


<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>EXHIBIT INDEX</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>&nbsp;</b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>
<b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </b></p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><b>&nbsp;</b></p>

<table border="0" style="border-collapse: collapse" width="100%" id="table2">
	<tr>
		<td valign="bottom" width="10%"><b>Exhibit No.</b></td>
		<td width="90%" valign="bottom">
		<p align="center"><b>Description</b></td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
		<td width="90%" valign="bottom">

<p style='margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman";page-break-after:avoid; margin-top:0'>&nbsp;</p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">1.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman";'>Underwriting
Agreement dated as of March 23, 2012 by and between Plug Power Inc. and Roth
Capital Partners, LLC </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">5.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Opinion of Goodwin Procter LLP </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">23.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Consent of Goodwin Procter LLP (contained in
Exhibit 5.1) </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">99.1</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Press release of Plug Power Inc. issued March 22,
2012 </p>

		</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">&nbsp;</td>
		<td width="90%" valign="bottom">&nbsp;</td>
	</tr>
	<tr>
		<td valign="bottom" width="10%">
		<p style="margin-top: 0; margin-bottom: 0">99.2</td>
		<td width="90%" valign="bottom">

<p style='margin-top:0;margin-bottom:0;font-size:12.0pt;font-family:"Times New Roman"'>Press release of Plug Power Inc. issued March 23,
2012</p>

		</td>
	</tr>
</table>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";page-break-after:avoid'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";' align="center">
6</p>

<div style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b>

<hr size=2 width="100%" noshade color=navy align=center>

</b></div>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";line-height:1.0pt'>&nbsp;</p>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'>&nbsp;</p>

</div>

</body>

</html>
[{"type": "8-K", "sequence": "1", "filename": "plug8k-5.htm", "secsgml_size_bytes": 34232}]
{"company-data": {"conformed-name": "PLUG POWER INC", "cik": "0001093691", "assigned-sic": "3620", "irs-number": "223672377", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-34392", "film-number": "12712604"}, "business-address": {"street1": "968 ALBANY-SHAKER ROAD", "city": "LATHAM", "state": "NY", "zip": "12110", "phone": "5187827700"}, "mail-address": {"street1": "968 ALBANY-SHAKER ROAD", "city": "LATHAM", "state": "NY", "zip": "12110"}}
Plug Power Form 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington,
D.C. 20549
_______________________________
FORM 8‑K
CURRENT
REPORT
Pursuant
to Section 13 or 15(d) of the
Securities Exchange Act of 1934
__________________________________
Date of Report (Date
of earliest event reported):  March 22, 2012
PLUG POWER INC.
(Exact name of registrant as specified in charter)
Delaware
1-34392
22-3672377
(State or Other
Jurisdiction
of Incorporation)
(Commission File
  Number)
(IRS Employer
Identification No.)
968
Albany Shaker Road, Latham, New York  12110
(Address of Principal Executive
Offices)  (Zip Code)
(518)
782-7700
(Registrant's telephone number,
including area code)
Check the
appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions (
see
General Instruction A.2. below):
o
Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material
pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))
o
Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))
2
Item 1.01        Entry into a Material Definitive
Agreement.
On March 23, 2012, Plug Power Inc. (the "Company") entered into an underwriting
agreement (the "Underwriting Agreement") with Roth Capital Partners, LLC as the
sole manager (the "Underwriter"), related to the public offering of an aggregate
of 13,000,000 shares of the Company's common stock, par value $0.01 per share
("Common Stock"), at a public offering price of $1.15 per share, less the
underwriting discounts and commissions payable by the Company (the "Offering"). 
The Underwriter will purchase the Common Stock at a discounted price of $1.0695
per share, representing a seven percent (7.0%)
discount to the public offering price.  The Company has granted the Underwriter
the option to purchase, at the same discounted price, an aggregate of up to an
additional 1,950,000 shares of Common Stock as may be necessary to cover
over-allotments made in connection with the Offering.
The Offering is expected to close on March 28, 2012,
subject to the satisfaction of customary closing conditions.  The net proceeds
to the Company are expected to be approximately $13,603,500 after deducting
underwriting discounts and commissions and estimated expenses payable by the
Company associated with the Offering.  The Offering is being made pursuant to
the Company's existing shelf registration statement on Form S-3 (File No.
333-173268), which was filed with the Securities and Exchange Commission (the
"Commission") on April 1, 2011 and declared effective by the Commission on
April 8, 2011 and is described in more detail in a prospectus supplement dated
March 22, 2012 and to be filed with the Commission on March 23, 2012 and an
accompanying base prospectus dated April 1, 2011.
The Underwriting Agreement contains customary
representations, warranties, and agreements by the Company, and customary
conditions to closing, indemnification obligations of the Company and the
Underwriter, including for liabilities under the Securities Act of 1933, as
amended, other obligations of the parties, and termination provisions.
Pursuant to the Underwriting Agreement, the Company agreed,
subject to certain exceptions, not to offer, issue or sell any shares of Common
Stock or securities convertible into or exercisable or exchangeable for shares
of Common Stock for a period of ninety (90) days following the Offering without
the prior written consent of the Underwriter.
The Underwriting Agreement has been attached hereto as an
exhibit to provide investors and security holders with information regarding
its terms.  It is not intended to provide any other factual information about
the Company.  The representations, warranties and covenants contained in the
Underwriting Agreement were made only for purposes of the Underwriting
Agreement and as of specific dates, were solely for the benefit of the parties
to the Underwriting Agreement, and may be subject to limitations agreed upon by
the contracting parties, including being qualified by confidential disclosures
exchanged between the parties in connection with the execution of the
Underwriting Agreement.
A copy of the opinion of Goodwin Procter LLP relating to
the legality of the issuance and sale of the securities in the Offering is
attached as Exhibit 5.1 hereto.  A copy of the Underwriting Agreement is filed
herewith as Exhibit 1.1 and is incorporated herein by reference.  The foregoing
description of the Offering by the Company and the documentation related
thereto does not purport to be complete and is qualified in its entirety by
reference to such Exhibit.
3
Item 9.01        Financial Statements and Exhibits
(d)
Exhibits.
1.1
Underwriting
Agreement dated as of March 23, 2012 by and between Plug Power Inc. and Roth
Capital Partners, LLC
5.1
Opinion of Goodwin Procter LLP
23.1
Consent of Goodwin Procter LLP (contained in
Exhibit 5.1)
99.1
Press release of Plug Power Inc. issued March 22,
2012
99.2
Press release of Plug Power Inc. issued March 23,
2012
4
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 hereunto duly
authorized.
PLUG POWER INC.
Date:  March 23, 2012
By:
/s/ Andrew Marsh
Andrew Marsh
Chief Executive Officer.
5
EXHIBIT INDEX
Exhibit No.
Description
1.1
Underwriting
Agreement dated as of March 23, 2012 by and between Plug Power Inc. and Roth
Capital Partners, LLC
5.1
Opinion of Goodwin Procter LLP
23.1
Consent of Goodwin Procter LLP (contained in
Exhibit 5.1)
99.1
Press release of Plug Power Inc. issued March 22,
2012
99.2
Press release of Plug Power Inc. issued March 23,
2012
6