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<title>UNITED STATES </title>


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<div style='page:Section1;'>

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

<p style='margin:0in;margin-bottom:.0001pt;text-align:center;font-size:12.0pt;font-family:Arial;margin-bottom:12.0pt'><b>&nbsp;</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:10.0pt;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-bottom:.0001pt;text-align:center;font-family:Times New Roman;margin-bottom:12.0pt; margin-left:0in; margin-right:0in; margin-top:0in'><b>
<font size="4">UNITED STATES</font></b></p>

<p style='margin-bottom:.0001pt;text-align:center;font-family:Times New Roman;margin-bottom:12.0pt; margin-left:0in; margin-right:0in; margin-top:0in'><b>
<font size="4">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:24.0pt;margin-left:0in;text-align:center;font-family:"Times New Roman";font-weight:bold;margin-bottom:12.0pt'>
<font size="4">Washington, D.C. 20549</font></p>

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

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

<p style='margin-bottom:.0001pt;text-align:center;font-family:Times New Roman;margin-bottom:12.0pt; margin-left:0in; margin-right:0in; margin-top:0in'><b>
<font size="4">FORM 8&#8209;K</font></b></p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:24.0pt;margin-left:0in;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;margin-bottom:12.0pt'>CURRENT REPORT</p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:24.0pt;margin-left:0in;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;margin-bottom:12.0pt'>Pursuant to Section 13 or
15(d) of the<br>
Securities Exchange Act of 1934</p>

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

<p style='margin:0in;margin-bottom:.0001pt;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;'>&nbsp;</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; <b><u>October 8, 2009</u></b></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>

<div align="center">

<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0
 style='border-collapse:collapse'>
 <tr>
  <td width=72 valign=top style='width:.75in;padding:0in 5.4pt 0in 5.4pt'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
  </td>
  <td width=504 valign=top style='width:5.25in;border:none;border-bottom:solid windowtext 1.0pt;
  padding:0in 5.4pt 0in 5.4pt'>
  <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 width=63 valign=top style='width:47.4pt;padding:0in 5.4pt 0in 5.4pt'>
  <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;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;margin-bottom:.25in'><font style="font-size: 10.0pt">(Exact
name of registrant as specified in charter)</font></p>

<div align="center">

<table class=MsoNormalTable border=0 cellpadding=0
 style='margin-left:29.4pt;border-collapse:collapse' width="75%">
 <tr>
  <td valign=top style='width:301px;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center;border:none;
  padding:0in'><b>Delaware</b></p>
  </div>
  </td>
  <td valign=top style='width:379px;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center;border:none;
  padding:0in'><b>0-27527</b></p>
  </div>
  </td>
  <td valign=top style='width:329px;padding-left:5.4pt; padding-right:5.4pt; padding-top:0in; padding-bottom:0in'>
  <div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center;border:none;
  padding:0in'><b>22-3672377</b></p>
  </div>
  </td>
 </tr>
 <tr>
  <td valign=top style='width:301px;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
  Jurisdiction<br>
  of Incorporation)</p>
  </td>
  <td valign=top style='width:379px;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 valign=top style='width:329px;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;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;margin-top:.25in'><u>968
Albany Shaker Road, Latham, New York&nbsp; 12110</u><u><br>
</u><font style="font-size: 10.0pt">(Address of Principal Executive
Offices)&nbsp; (Zip Code)</font></p>

<p style='margin:0in;margin-bottom:.0001pt;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;margin-top:.25in'><u>(518)
782-7700<br>
</u><font style="font-size: 10.0pt">(Registrant&#146;s telephone number,
including area code)</font></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";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";'><font style="font-size: 11.0pt">&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; </font></p>

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

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

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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>

</div>

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style='page-break-before:always'>
</b>

<div style='page:Section2;'>

<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:10.0pt;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-right:0in;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";margin-top:0in'><b><font style="font-size: 11.0pt">Item 7.01
Regulation FD Disclosure.</font></b><font style="font-size: 11.0pt"> </font></p>

<p style='margin-right:0in;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";margin-top:0in'><font style="font-size: 11.0pt">On October 8, 2009,
executives of Plug Power Inc. (the &#147;Company&#148;) are presenting to certain
investors the information described in the slides attached to this report as
Exhibit 99.1.&nbsp; The presentation will include, among other things, the
Company's expectation that it will ship 1,100 GenSys units and 1,000 GenSys
units in 2010 and that it will achieve profitability and positive cash flow in
2012.&nbsp; Exhibit 99.1 is incorporated by reference herein.</font></p>

<p style='margin-right:0in;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";margin-top:0in'><font style="font-size: 11.0pt">The information set
forth in this Item 7.01, including Exhibit 99.1 attached hereto, is intended to
be furnished and shall not be deemed &#147;filed&#148; for purposes of Section 18 of the
Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), or otherwise
subject to the liabilities of that section, nor shall it be deemed incorporated
by reference in any filing under the Securities Act of 1933, as amended, or the
Exchange Act, except as expressly set forth by specific reference in such
filing.</font></p>

<p style='margin-right:0in;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";margin-top:0in'><b><font style="font-size: 11.0pt">Item 9.01 Financial
Statements and Exhibits. </font></b></p>

<p style='margin-right:0in;margin-left:0in;font-size:12.0pt;font-family:"Times New Roman";margin-top:0in'><font style="font-size: 11.0pt">(d)&nbsp;&nbsp;&nbsp;&nbsp;
Exhibits.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>
<br>
</font></p>

<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="93%"
 style='width:93.0%;margin-left:.25in;border-collapse:collapse'>
 <tr>
  <td width="19%" valign=bottom style='width:19.24%;border:none;border-bottom:
  solid windowtext 1.0pt;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><a name="OLE_LINK2"></a><a name="OLE_LINK1"><b><font style="font-size: 11.0pt">Exhibit&nbsp;Number</font></b></a></p>
  </td>
  <td width="0%" valign=bottom style='width:.68%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b><font style="font-size: 11.0pt">&nbsp;</font></b></p>
  </td>
  <td width="80%" valign=bottom style='width:80.08%;border:none;border-bottom:
  solid windowtext 1.0pt;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'><b><font style="font-size: 11.0pt">Title</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="19%" valign=top style='width:19.24%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">&nbsp;</font></p>
  </td>
  <td width="0%" valign=bottom style='width:.68%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">&nbsp;</font></p>
  </td>
  <td width="80%" valign=top style='width:80.08%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="19%" valign=top style='width:19.24%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">99.1</font></p>
  </td>
  <td width="0%" valign=bottom style='width:.68%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">&nbsp;</font></p>
  </td>
  <td width="80%" valign=top style='width:80.08%;padding:0in 0in 0in 0in'>
  <p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";'><font style="font-size: 11.0pt">Slide presentation given by
  executives of Plug Power Inc. on October 8, 2009.</font></p>
  </td>
 </tr>
</table>

<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";margin-left:1.0in;text-indent:-1.0in'><font style="font-size: 11.0pt">&nbsp;</font></p>

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

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

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

</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:10.0pt;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-top:0in;margin-right:0in;margin-bottom:24.0pt;margin-left:0in;text-align:center;font-size:12.0pt;font-family:"Times New Roman";font-weight:bold;'>SIGNATURES</p>

<p style='margin-top:0in;margin-right:0in;margin-bottom:6.0pt;margin-left:0in;text-indent:10.5pt;font-size:10.0pt;font-family:"Times New Roman";text-indent:.5in'><font style="font-size: 12.0pt">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.</font></p>
<p style='margin-top:0in;margin-right:0in;margin-bottom:6.0pt;margin-left:0in;text-indent:10.5pt;font-size:10.0pt;font-family:"Times New Roman";text-indent:.5in'>&nbsp;</p>

<table border="0" style="border-collapse: collapse" width="100%" id="table1">
	<tr>
		<td width="35%" nowrap>
		<p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
		<td width="65%">

<p style='margin-top:0;margin-bottom:0;page-break-after:avoid;font-size:12.0pt;font-family:"Times New Roman";page-break-after:auto' align="left">PLUG POWER
INC.</p>

		</td>
	</tr>
	<tr>
		<td width="35%" nowrap>&nbsp;</td>
		<td width="65%">&nbsp;</td>
	</tr>
	<tr>
		<td width="35%" nowrap>&nbsp;</td>
		<td width="65%">&nbsp;</td>
	</tr>
	<tr>
		<td width="35%" nowrap>
		<p style="margin-top: 0; margin-bottom: 0">Date:&nbsp; October
8, 2009</td>
		<td width="65%">

<p style='margin-top:0in;margin-bottom:12.0pt;font-size:12.0pt;font-family:"Times New Roman";margin-top:0;margin-bottom:
0in;margin-bottom:0;'>&nbsp;By: /s/ Andrew Marsh</p>

		</td>
	</tr>
	<tr>
		<td width="35%" nowrap>
		<p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
		<td width="65%">

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

		</td>
	</tr>
	<tr>
		<td width="35%" nowrap>
		<p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
		<td width="65%">

<p style='margin-top:0in;margin-bottom:12.0pt;font-size:12.0pt;font-family:"Times New Roman";margin-top:0;margin-bottom:
0in;margin-bottom:0;'>Chief
Executive Officer</p>

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

<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";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>&nbsp;</p>
<p style='margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";text-align:center'>2</p>

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

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

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

</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>

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</html>
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{"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": "091112201"}, "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"}}
UNITED STATES
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):
October 8, 2009
PLUG POWER INC.
(Exact
name of registrant as specified in charter)
Delaware
0-27527
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))
Item 7.01
Regulation FD Disclosure.
On October 8, 2009,
executives of Plug Power Inc. (the "Company") are presenting to certain
investors the information described in the slides attached to this report as
Exhibit 99.1.  The presentation will include, among other things, the
Company's expectation that it will ship 1,100 GenSys units and 1,000 GenSys
units in 2010 and that it will achieve profitability and positive cash flow in
2012.  Exhibit 99.1 is incorporated by reference herein.
The information set
forth in this Item 7.01, including Exhibit 99.1 attached hereto, is intended to
be furnished and shall not be deemed "filed" for purposes of Section 18 of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise
subject to the liabilities of that section, nor shall it be deemed incorporated
by reference in any filing under the Securities Act of 1933, as amended, or the
Exchange Act, except as expressly set forth by specific reference in such
filing.
Item 9.01 Financial
Statements and Exhibits.
(d)    
Exhibits.
Exhibit Number
Title
99.1
Slide presentation given by
  executives of Plug Power Inc. on October 8, 2009.
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:  October
8, 2009
By: /s/ Andrew Marsh
Andrew
Marsh
Chief
Executive Officer
2