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  <div style="MARGIN-BOTTOM: -2px" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">As filed with the Securities and Exchange Commission on July 8, 2011</font></font></div>
  
  <div style="TEXT-ALIGN: right"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Registration No. 333- </font></font></div>
  
  <hr style="MARGIN-TOP: -2px; COLOR: black" size="4">
  <hr style="MARGIN-TOP: -10px; COLOR: black" size="1">
  <div style="MARGIN-TOP: -5px" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="4" style="FONT-FAMILY: Times New Roman">UNITED STATES<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="4" style="FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">WASHINGTON, DC 20549<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">______________________________</font></font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font size="4" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">FORM S-8<br>
  </font></font><font size="4" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">REGISTRATION STATEMENT<br>
  </font></font><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">UNDER<br>
  </font></font><font size="2" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">THE SECURITIES ACT OF 1933<br>
  </font></font></font><font size="2" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">_______________________________________</font> </font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="4" style="FONT-FAMILY: Times New Roman">MECHANICAL TECHNOLOGY, INCORPORATED<br>
  </font></font><font size="2" style="FONT-FAMILY: Times New Roman">(Exact name of registrant as specified in its charter)<br>
  <font style="DISPLAY: inline; FONT-WEIGHT: bold">_______________________________________</font></font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
  <tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">New York</font></font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">14-1462255</font></font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(State or other jurisdiction of incorporation or</font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(I.R.S. Employer Identification Number)</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">organization)</font></td>
  <td align="left" nowrap width="50%">&#160;</td>
  </tr></table>
  </div>
  
  <br>
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">431 New Karner Road<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Albany, New York 12205<br>
  </font></font><font size="2" style="FONT-FAMILY: Times New Roman">(Address of Principal Executive Offices, including zip code) <br>
  <font style="DISPLAY: inline; FONT-WEIGHT: bold">_______________________________________</font><br>
  </font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan<br>
  </font></font><font size="2" style="FONT-FAMILY: Times New Roman">(Full title of the plan)</font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
  <tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: times new roman">Copies of Correspondence to:</font></font></td>
  </tr><tr>
  <td nowrap width="49%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="50%" style="TEXT-ALIGN: center">&#160;</td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Peng K. Lim</font></font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Brett E. Cooper, Esq.</font></font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">President and Chief Executive Officer</font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Orrick, Herrington &amp; Sutcliffe LLP</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">431 New Karner Road</font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">The Orrick Building</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Albany, New York 12205</font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">405 Howard Street</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(518) <font style="FONT-FAMILY: times new roman">533-2200</font></font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">San Francisco, CA 94105-2669</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Name, address, and telephone number, including area</font></td>
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(415) <font style="FONT-FAMILY: times new roman">773-5918</font></font></td>
  </tr><tr valign="bottom">
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">code, of agent for service)</font></td>
  <td align="left" nowrap width="50%">&#160;</td>
  </tr><tr>
  <td colspan="2" nowrap width="99%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">_______________________________________<br>
  </font></font></td>
  </tr></table>
  </div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act. (Check one): </font></div>
  
  <div>&#160;</div>
  
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  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
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  <td align="left" nowrap width="60%"><font size="2" style="FONT-FAMILY: times new roman">Large accelerated filer <font style="FONT-FAMILY: wingdings">o</font></font></td>
  <td align="left" nowrap width="40%"><font size="2" style="FONT-FAMILY: times new roman">Accelerated filer </font><font size="2" style="FONT-FAMILY: wingdings">o</font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="60%"><font size="2" style="FONT-FAMILY: times new roman">Non-accelerated filer <font style="FONT-FAMILY: wingdings">o </font><font style="FONT-FAMILY: times new roman">(Do not check if a smaller reporting company)</font></font></td>
  <td align="left" nowrap width="40%"><font size="2" style="FONT-FAMILY: times new roman">Smaller reporting company <font style="FONT-FAMILY: wingdings">x</font></font></td>
  </tr></table>
  </div>
  
  <br>
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">CALCULATION OF REGISTRATION FEE </font></font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
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  <td nowrap width="18%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Proposed</font></td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Proposed</font></td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-TOP: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  </tr><tr valign="bottom">
  <td nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">maximum</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">maximum</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  </tr><tr valign="bottom">
  <td nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Title of securities</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Amount to be</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">offering price per</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">aggregate</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">Amount of</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">to be registered</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">registered<font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(1)</font></font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">share</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">offering price</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">registration fee</font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">Common stock,</font></td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">$0.01 par value per</font></td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="right" nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">share (Common</font></td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">600,000</font></td>
  <td align="right" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">$0.64<font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(2)</font></font></td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">$384,000</font></td>
  <td align="right" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">$44.58</font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="18%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">Stock&#8221;)</font></td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="20%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="19%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="20%" style="BORDER-RIGHT: #000000 1pt solid; BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid">&#160;</td>
  </tr></table>
  </div>
  
  <div>&#160;</div>
  
  <div style="TEXT-ALIGN: justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(1) </font>Pursuant to Rule 416(a) promulgated under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;), this registration statement shall also cover any additional securities that become issuable by reason of any stock dividend, stock split, recapitalization or other similar transaction.</font></div>
  
  <div style="TEXT-ALIGN: justify"><font size="2">&#160;</font></div>
  
  <div style="TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(2) </font>Pursuant to Rule 457(h) under the Securities Act, the registration fee for the additional 600,000 shares available to be offered or sold under the Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan is based upon a price of $0.64 per share, the average of the closing of the bid and asked prices of the Common Stock as reported on Pink Sheets as of July 06, 2011.</font></div>
  
  <div style="TEXT-ALIGN: justify">&#160;</div>
  
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  <br>
  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">PART I </font></font></div>
  
  <div style="TEXT-ALIGN: justify">&#160;</div>
  
  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS </font></font></div>
  
  <div style="TEXT-ALIGN: justify">&#160;</div>
  
  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">All Information required by Part I of Form S-8 to be contained in the prospectus is omitted from this registration statement in accordance with Rule 428 under the Securities Act. </font></div>
  
  <div style="TEXT-ALIGN: justify" align="justify"><font size="2">&#160;</font></div>
  
  <div style="TEXT-ALIGN: justify" align="justify">
  <div style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: Times New Roman">1 </font></div>
  </div>
  
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  <br>
  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">PART II </font></font></div>
  
  <div style="TEXT-ALIGN: center">&#160;</div>
  
  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT </font></font></div>
  
  <div style="TEXT-ALIGN: justify">&#160;</div>
  
  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">EXPLANATORY NOTE</font></font><font size="2" style="FONT-FAMILY: Times New Roman"> </font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">On June 5, 2006, the Registrant filed with the Securities and Exchange Commission (the &#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Commission</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;) a Registration Statement on Form S-8 (File No. 333-134730) (the &#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">2006 S-8</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;) registering 250,000 shares (as adjusted to reflect a eight-for one reverse stock split effected in May 2008 (the &#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Reverse Split</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;)) of the Registrant&#8217;s common stock, $0.01 par value per share (the &#8220;Common Stock&#8221;), to be issued pursuant to the Registrant&#8217;s Amended and Restated 2006 Equity Incentive Plan (&#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">2006 Plan</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;). On September 18, 2009, the Registrant filed with the Commission a Registration Statement on Form S-8 (File No. 333-161993) (the &#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">2009 S-8</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;) registering an additional 350,000 shares of Common Stock to be issued pursuant to the 2006 Plan. </font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">This Registration Statement on Form S-8 registers an additional 600,000 shares of Common Stock that may be issued pursuant to the 2006 Plan. Pursuant to General Instruction E of Form S-8, this Registration Statement on Form S-8 hereby incorporates by reference the contents of the 2006 S-8 and the 2009 S-8. </font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE. </font></font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">The following documents, which have been filed by the Company with the Commission, are incorporated in this Registration Statement by reference:</font></div>
  
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  <div style="PADDING-LEFT: 15pt; TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(a)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2010, filed with the Commission on March 25, 2011;</font></div>
  
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  <div style="PADDING-LEFT: 15pt; TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(b)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The Company&#8217;s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011, filed with the Commission on May 12, 2011;</font></div>
  
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  <div style="PADDING-LEFT: 15pt; TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(c)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">All other reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the &#8220;</font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Exchange Act</font></font><font size="2" style="FONT-FAMILY: Times New Roman">&#8221;) since the end of the fiscal year covered by the document referred to in (a) above; and</font></div>
  
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  <div style="PADDING-LEFT: 15pt; TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">(d)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The description of the Company's Common Stock included in the Registration Statement on Form 10 (File No. 0-6890) filed in connection with the registration of the Company's Common Stock under Section 12(g) of the Exchange Act. </font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>All documents that the Company files after the date of this prospectus pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the termination of this offering, shall be deemed to be incorporated by reference into this prospectus and will automatically update information in this prospectus; provided, however, that notwithstanding the forgoing, unless specifically stated to the contrary, none of the information that the Company discloses under Items 2.02 or 7.01 of any Current Report on Form 8-K that the Company may from time to time furnish to the Commission will be incorporated by reference into, or otherwise included in, this prospectus.</font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.</font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 8. EXHIBITS. </font></font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">See Index to Exhibits. </font></div>
  
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  <div style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: Times New Roman">2 </font></div>
  
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  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">SIGNATURES </font></font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in Albany, New York, on July 7, 2011. </font></div>
  
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  <td align="left" colspan="3" nowrap width="50%"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">MECHANICAL TECHNOLOGY, INCORPORATED</font></font></td>
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  <div><font size="2" style="FONT-FAMILY: times new roman">By&#160;&#160; </font></div>
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  <td align="left" nowrap width="39%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Peng K. Lim</font></td>
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  <td align="left" nowrap width="50%">&#160;</td>
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  <td align="left" colspan="2" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Peng K. Lim</font></td>
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  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" colspan="2" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">President and Chief Executive Officer</font></td>
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  <div style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">POWER OF ATTORNEY </font></font></div>
  
  <div style="TEXT-ALIGN: justify">&#160;</div>
  
  <div style="TEXT-ALIGN: justify" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature to this Registration Statement on Form S-8 appears below hereby constitutes and appoints Peng K. Lim, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement on Form S-8, and to sign any registration statement for the same offering covered by this Registration Statement on Form S-8 that is to be effective on filing pursuant to Rule 462(b) promulgated under the Securities Act of 1933, and all post-effective amendments thereto, and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or his substitute or their substitutes, may lawfully do or cause to be done by virtue hereof. </font></div>
  
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  <div style="TEXT-ALIGN: justify" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on July 7, 2011. </font></div>
  
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  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">TITLE</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ Peng K. Lim</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">President, Chief Executive Officer and Director</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Peng K. Lim</font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">(Principal Executive Officer)</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ Frederick W. Jones</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">Acting Chief Financial Officer</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Frederick W. Jones</font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">(Principal Financial Officer)</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ Thomas J. Marusak</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Thomas J. Marusak</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ William P. Phelan</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">William P. Phelan</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ E. Dennis O&#8217; Connor</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">E. Dennis O&#8217;Connor</font></td>
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  <td align="left" nowrap width="49%"><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: times new roman">/s/ Dr. Walter L. Robb</font></font></td>
  <td align="left" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
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  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Dr. Walter L. Robb</font></td>
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  <td align="left" nowrap width="3%" style="BORDER-BOTTOM: #000000 1pt solid"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: times new roman">Exhibit</font></font></font></td>
  <td align="left" nowrap width="1%"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td align="left" nowrap width="3%" style="BORDER-BOTTOM: #000000 1pt solid"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: times new roman">Description</font></font></font></td>
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  <td align="left" nowrap valign="top" width="3%"><font size="2" style="FONT-FAMILY: times new roman">5.1</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Opinion of Orrick, Herrington &amp; Sutcliffe LLP</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%">&#160; </td>
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  <td align="left" nowrap valign="top" width="3%"><font size="2" style="FONT-FAMILY: times new roman">10.1</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Consent of PricewaterhouseCoopers LLP</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Consent of Orrick, Herrington &amp; Sutcliffe LLP (included in Exhibit 5.1)</font></td>
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  <td align="left" colspan="2" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Power of Attorney (included on the Signature Page to this Registration Statement)</font></td>
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text: mti_s8.htm
  As filed with the Securities and Exchange Commission on July 8, 2011
  Registration No. 333-
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, DC 20549
  ______________________________
  FORM S-8
  REGISTRATION STATEMENT
  UNDER
  THE SECURITIES ACT OF 1933
  _______________________________________
  MECHANICAL TECHNOLOGY, INCORPORATED
  (Exact name of registrant as specified in its charter)
  _______________________________________
  New York
  14-1462255
  (State or other jurisdiction of incorporation or
  (I.R.S. Employer Identification Number)
  organization)
  431 New Karner Road
  Albany, New York 12205
  (Address of Principal Executive Offices, including zip code)
  _______________________________________
  Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan
  (Full title of the plan)
  Copies of Correspondence to:
  Peng K. Lim
  Brett E. Cooper, Esq.
  President and Chief Executive Officer
  Orrick, Herrington & Sutcliffe LLP
  431 New Karner Road
  The Orrick Building
  Albany, New York 12205
  405 Howard Street
  (518)
  533-2200
  San Francisco, CA 94105-2669
  (Name, address, and telephone number, including area
  (415)
  773-5918
  code, of agent for service)
  _______________________________________
  Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):
  Large accelerated filer
  o
  Accelerated filer
  o
  Non-accelerated filer
  o
  (Do not check if a smaller reporting company)
  Smaller reporting company
  x
  CALCULATION OF REGISTRATION FEE
  Proposed
  Proposed
  maximum
  maximum
  Title of securities
  Amount to be
  offering price per
  aggregate
  Amount of
  to be registered
  registered
  (1)
  share
  offering price
  registration fee
  Common stock,
  $0.01 par value per
  share (Common
  600,000
  $0.64
  (2)
  $384,000
  $44.58
  Stock")
  (1)
  Pursuant to Rule 416(a) promulgated under the Securities Act of 1933, as amended (the "Securities Act"), this registration statement shall also cover any additional securities that become issuable by reason of any stock dividend, stock split, recapitalization or other similar transaction.
  (2)
  Pursuant to Rule 457(h) under the Securities Act, the registration fee for the additional 600,000 shares available to be offered or sold under the Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan is based upon a price of $0.64 per share, the average of the closing of the bid and asked prices of the Common Stock as reported on Pink Sheets as of July 06, 2011.
  PART I
  INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
  All Information required by Part I of Form S-8 to be contained in the prospectus is omitted from this registration statement in accordance with Rule 428 under the Securities Act.
  1
  PART II
  INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
  EXPLANATORY NOTE
  On June 5, 2006, the Registrant filed with the Securities and Exchange Commission (the "
  Commission
  ") a Registration Statement on Form S-8 (File No. 333-134730) (the "
  2006 S-8
  ") registering 250,000 shares (as adjusted to reflect a eight-for one reverse stock split effected in May 2008 (the "
  Reverse Split
  ")) of the Registrant's common stock, $0.01 par value per share (the "Common Stock"), to be issued pursuant to the Registrant's Amended and Restated 2006 Equity Incentive Plan ("
  2006 Plan
  "). On September 18, 2009, the Registrant filed with the Commission a Registration Statement on Form S-8 (File No. 333-161993) (the "
  2009 S-8
  ") registering an additional 350,000 shares of Common Stock to be issued pursuant to the 2006 Plan.
  This Registration Statement on Form S-8 registers an additional 600,000 shares of Common Stock that may be issued pursuant to the 2006 Plan. Pursuant to General Instruction E of Form S-8, this Registration Statement on Form S-8 hereby incorporates by reference the contents of the 2006 S-8 and the 2009 S-8.
  ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.
  The following documents, which have been filed by the Company with the Commission, are incorporated in this Registration Statement by reference:
  (a)
  The Company's Annual Report on Form 10-K for the year ended December 31, 2010, filed with the Commission on March 25, 2011;
  (b)
  The Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011, filed with the Commission on May 12, 2011;
  (c)
  All other reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the "
  Exchange Act
  ") since the end of the fiscal year covered by the document referred to in (a) above; and
  (d)
  The description of the Company's Common Stock included in the Registration Statement on Form 10 (File No. 0-6890) filed in connection with the registration of the Company's Common Stock under Section 12(g) of the Exchange Act.
  All documents that the Company files after the date of this prospectus pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the termination of this offering, shall be deemed to be incorporated by reference into this prospectus and will automatically update information in this prospectus; provided, however, that notwithstanding the forgoing, unless specifically stated to the contrary, none of the information that the Company discloses under Items 2.02 or 7.01 of any Current Report on Form 8-K that the Company may from time to time furnish to the Commission will be incorporated by reference into, or otherwise included in, this prospectus.
  Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
  ITEM 8. EXHIBITS.
  See Index to Exhibits.
  2
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in Albany, New York, on July 7, 2011.
  MECHANICAL TECHNOLOGY, INCORPORATED
  By
  /s/ Peng K. Lim
  Peng K. Lim
  President and Chief Executive Officer
  POWER OF ATTORNEY
  KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature to this Registration Statement on Form S-8 appears below hereby constitutes and appoints Peng K. Lim, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement on Form S-8, and to sign any registration statement for the same offering covered by this Registration Statement on Form S-8 that is to be effective on filing pursuant to Rule 462(b) promulgated under the Securities Act of 1933, and all post-effective amendments thereto, and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or his substitute or their substitutes, may lawfully do or cause to be done by virtue hereof.
  Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on July 7, 2011.
  SIGNATURE
  TITLE
  /s/ Peng K. Lim
  President, Chief Executive Officer and Director
  Peng K. Lim
  (Principal Executive Officer)
  /s/ Frederick W. Jones
  Acting Chief Financial Officer
  Frederick W. Jones
  (Principal Financial Officer)
  /s/ Thomas J. Marusak
  Director
  Thomas J. Marusak
  /s/ William P. Phelan
  Director
  William P. Phelan
  /s/ E. Dennis O' Connor
  Director
  E. Dennis O'Connor
  /s/ Dr. Walter L. Robb
  Director
  Dr. Walter L. Robb
  3
  INDEX TO EXHIBITS
  Exhibit
  Description
  5.1
  Opinion of Orrick, Herrington & Sutcliffe LLP
  10.1
  Mechanical Technology, Incorporated Amended and Restated 2006 Equity Incentive Plan
  23.1
  Consent of PricewaterhouseCoopers LLP
  23.2
  Consent of Orrick, Herrington & Sutcliffe LLP (included in Exhibit 5.1)
  24.1
  Power of Attorney (included on the Signature Page to this Registration Statement)