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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>As filed with the
Securities and Exchange Commission on December 28, 2007 </FONT></H1>

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<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Registration No.
333-__________ </B> </FONT><HR ALIGN=LEFT WIDTH=100% SIZE=1 NOSHADE COLOR=BLACK></P>



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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>UNITED STATES <BR>SECURITIES AND
EXCHANGE COMMISSION <BR>Washington, D.C. 20549 </FONT></H1>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>FORM S-8 <BR>
REGISTRATION STATEMENT <BR>Under <BR>THE SECURITIES ACT OF
1933 </FONT></P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Orion Energy Systems,
Inc.</B>                                <BR>(Exact name of registrant as specified in its charter) </FONT></P>

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<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Wisconsin</FONT></TD>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>39-1847269</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(State or other jurisdiction</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(I.R.S. Employer</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>of incorporation or organization)</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Identification No.)</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2><BR>1204 Pilgrim Road</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Plymouth, WI</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>53073</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(Address of principal executive offices)</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(Zip Code)</FONT></TD></TR>
</TABLE>




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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Orion Energy Systems,
Inc. 2003 Stock Option Plan, as amended <BR><U>Orion Energy Systems, Inc. 2004 Stock and
Incentive Awards Plan</U><BR>(Full title of the plan)  </FONT></P>


<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Neal R. Verfuerth</FONT></TD>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>&nbsp;</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>President and Chief Executive Officer</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Copy to:</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Orion Energy Systems, Inc.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>1204 Pilgrim Road</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Steven R. Barth, Esq.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Plymouth, WI 53073</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Carl R. Kugler, Esq.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(920) 892-9340</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Foley &amp; Lardner LLP</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>(Name, address and telephone number, including</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>777 East Wisconsin Avenue</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>area code, of agent for service)</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Milwaukee, Wisconsin 53202</FONT></TD></TR>
</TABLE>

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<BR>








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<TR VALIGN=Bottom>
     <TD ALIGN=CENTER COLSPAN=5><FONT FACE="Times New Roman" SIZE=2>CALCULATION OF REGISTRATION FEE</FONT><HR WIDTH=100% SIZE=2 COLOR=BLACK NOSHADE></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Title of<BR>
Securities to be<BR>
Registered</FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Amount<BR>
to be<BR>
Registered<SUP>(1)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Proposed Maximum<BR>
Offering Price Per<BR>
Share<SUP>(2)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Proposed Maximum<BR>
Aggregate Offering<BR>
Price<SUP>(2)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Amount of<BR>
Registration<BR>
Fee</FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD></TR>
<TR VALIGN=Bottom>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>Common Stock,</FONT></TD>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>6,451,177 shares</FONT></TD>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>$19.21</FONT></TD>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>$123,927,111</FONT></TD>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>$3,805</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman" SIZE=2>no par value</FONT></TD></TR>
<TR>
     <TD COLSPAN=5><HR NOSHADE COLOR=#000000 SIZE=2></TD></TR>
</TABLE>




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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(1) </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
number of shares of common stock, no par value (&#147;Common Stock&#148;),
          consists of the aggregate number of shares that may be sold (i) upon the
          exercise of options that have been granted under the Orion Energy Systems, Inc.
          2003 Stock Option Plan, as amended (the &#147;2003 Plan&#148;), and the Orion
          Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (the &#147;2004
          Plan&#148; and, together with the 2003 Plan, the &#147;Plans&#148;) and (ii)
          upon the exercise of options or issuances of stock awards that may hereafter be
          granted under the 2004 Plan. The terms of the Plans provide for a change in the
          number of shares that may be issued under the Plans to prevent dilution or
          enlargement in the event of certain transactions, including certain stock
          dividends and similar transactions. Accordingly, pursuant to Rule 416 under the
          Securities Act of 1933, as amended, this Registration Statement covers, in
          addition to the number of shares stated above, an indeterminate number of
shares           that may be subject to grant or otherwise issuable after the occurrence
of any           such change under the terms of the Plans. </FONT></TD>
</TR>
</TABLE>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(2) </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Estimated
pursuant to Rule 457(c) and (h) under the Securities Act of 1933, as           amended,
solely for the purpose of calculating the registration fee on the basis           of the
average of the high and low prices of the Common Stock as reported on the
          Nasdaq Global Market on December 21, 2007. </FONT></TD>
</TR>
</TABLE>
<BR>


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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART I </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
document or documents containing the information specified in Part I are not required to
be filed with the Securities and Exchange Commission (the &#147;Commission&#148;) as part
of this Form S-8 Registration Statement. </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART II </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT </FONT></H1>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 3. Incorporation of Documents
by Reference </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following documents previously filed with the Commission by Orion Energy Systems, Inc.
(hereinafter referred to as the &#147;Company&#148; or the &#147;Registrant&#148;) are
hereby incorporated herein by reference: </FONT></P>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a) </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
Company&#146;s prospectus filed pursuant to Rule&nbsp;424(b)(4) of the
               Securities Act of 1933, as amended, as filed with the Commission on
December 19,                2007 as a part of the Company&#146;s Registration Statement
on Form S-1, as                amended (Reg. No. 333-145569), which includes audited
financial statements of                the Company for the year ended March 31, 2007 and
a description of the                Company&#146;s common stock, no par value (the &#147;Common
Stock&#148;). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b) </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
description of the Common Stock contained in the Company&#146;s Registration
               Statement on Form 8-A (File No. 001-33887) filed with the Commission on
               December&nbsp;14, 2007 pursuant to Section&nbsp;12(b) of the Securities
Exchange                Act of 1934, as amended (the &#147;Exchange Act&#148;), including
any amendment                or report filed for the purpose of updating such
description. </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All
documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act after the date of filing of this Registration Statement and
prior to such time as the Company files a post-effective amendment to this Registration
Statement that indicates that all securities offered hereby have been sold or that
deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be a part hereof from the date of filing
of such documents. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 4. Description of
Securities. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable. </FONT></P>


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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 5. Interests of
Named Experts and Counsel. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable. </FONT></P>


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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 6. Indemnification
of Directors and Officers. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Article&nbsp;IX
of the Company&#146;s Amended and Restated Bylaws (the &#147;Bylaws&#148;) provides that,
to the fullest extent permitted or required by Wisconsin law, the Company will indemnify
all of its directors and officers, any trustee of any of the Company&#146;s employee
benefit plans and any person who is serving at the Company&#146;s request as a director,
officer, employee or agent of another entity, against certain liabilities and losses
incurred in connection with these positions or services. The Company will indemnify these
parties to the extent the parties are successful in the defense of a proceeding and in
proceedings in which the party is not successful in the defense of the proceeding unless,
in the latter case only, it is determined that the party breached or failed to perform his
or her duties to the Company and this breach or failure constituted: </FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-2- </FONT></P>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&#149; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>a
willful failure to deal fairly with the Company or the shareholders of the Company in
connection with a matter in which the director or officer has a material conflict of
interest; </FONT></TD>
</TR>
</TABLE>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&#149; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>a
 violation  of  criminal  law,  unless the  director  or officer  had  reasonable  cause
to believe  his or her  conduct was                   unlawful;</FONT></TD>
</TR>
</TABLE>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&#149; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>a
transaction from which the director or officer derived an improper personal profit; or</FONT></TD>
</TR>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&#149; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>willful
misconduct.</FONT></TD>
</TR>
</TABLE>
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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Bylaws provide that the Company is required to indemnify its directors and executive
officers and may indemnify its employees and other agents to the fullest extent required
or permitted by Wisconsin law. Additionally, the Bylaws require the Company under certain
circumstances to advance reasonable expenses incurred by a director or officer who is a
party to a proceeding for which indemnification may be available. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wisconsin
law further provides that it is the public policy of the State of Wisconsin to require or
permit indemnification, allowance of expenses and insurance to the extent required or
permitted under Wisconsin law for any liability incurred in connection with a proceeding
involving a federal or state statute, rule or regulation regulating the offer, sale or
purchase of securities. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under
Wisconsin law, a director is not personally liable for breach of any duty resulting solely
from his or her status as a director, unless it is proved that the director&#146;s conduct
constituted conduct described in the bullet points above. In addition, the Company intends
to obtain directors&#146; and officers&#146; liability insurance that will insure against
certain liabilities, including liabilities under the Securities Act of 1933, as amended,
subject to applicable restrictions. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 7. Exemption from
Registration Claimed. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
Applicable. </FONT></P>


<BR><BR><BR>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-3- </FONT></P>


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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 8.  Exhibits.  </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following exhibits have been filed (except where otherwise indicated) as part of this
Registration Statement: </FONT></P>


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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           <U>Exhibit No.</U> </FONT></TD>
<TD WIDTH=80% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Exhibit</U></FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.1) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Articles of Incorporation of the Company (incorporated by
               reference to Exhibit 3.3 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.2) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Bylaws of the Company (incorporated by reference to Exhibit
               3.5 to the Company&#146;s Registration Statement on Form S-1 (Reg. No.
               333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.3) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Investors&#146; Rights Agreement by and among the Company                and
the signatories thereto, dated August 3, 2007 (incorporated by reference to
               Exhibit 4.1 to the Company&#146;s Registration Statement on Form S-1 (Reg.
No.                333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.4) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Orion
Energy Systems, Inc. 2003 Stock Option Plan, as amended (incorporated by
               reference to Exhibit 10.6 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.5) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2003 Stock
               Option Plan (incorporated by reference to Exhibit 10.7 to the Company&#146;s
               Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.6) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amendment
to Stock Option Agreement between Bruce Wadman and Orion Energy                Systems,
Inc. dated February 19, 2007 (incorporated by reference to Exhibit 10.8                to
the Company&#146;s Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.7) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Orion
Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (incorporated by
               reference to Exhibit 10.9 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.8) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Equity
               Incentive Plan (incorporated by reference to Exhibit 10.10 to the Company&#146;s
               Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.9) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Stock
               and Incentive Awards Plan (incorporated by reference to Exhibit 10.11 to
the                Company&#146;s Registration Statement on Form S-1 (Reg. No.
333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(5)</FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Foley &amp; Lardner LLP. </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(23.1) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Grant Thornton LLP. </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(23.2) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Foley &amp; Lardner LLP (contained in Exhibit 5 hereto). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(24) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Power
of Attorney (included on the signature page to this Registration           Statement). </FONT></TD>
</TR>
</TABLE>
<BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-4- </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 9. Undertakings. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;
               The undersigned Registrant hereby undertakes:  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;               To
file, during any period in which offers or sales are being made, a
               post-effective amendment to this Registration Statement:  </FONT></P>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;
               To include any prospectus required by Section 10(a)(3) of the Securities
Act of                1933;  </FONT>
</TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;
               To reflect in the prospectus any facts or events arising after the
effective                date of the Registration Statement (or the most recent
post-effective amendment                thereof) which, individually or in the aggregate,
represent a fundamental change                in the information set forth in the
Registration Statement; and  </FONT>
</TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;
               To include any material information with respect to the plan of
distribution not                previously disclosed in the Registration Statement or any
material change to                such information in the Registration Statement;  </FONT>
</TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>provided</U>, <U>however</U>, that
paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be
included in a post-effective amendment by those paragraphs is contained in periodic
reports filed with or furnished to the Commission by the Registrant pursuant to Section 13
or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the Registration Statement. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;          That,
for the purpose of determining any liability under the Securities Act of           1933,
each such post-effective amendment shall be deemed to be a new           registration
statement relating to the securities offered herein, and the           offering of such
securities at that time shall be deemed to be the initial bona           fide offering
thereof.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;          To
remove from registration by means of a post-effective amendment any of the
          securities being registered which remain unsold at the termination of the
          offering.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;          The
undersigned Registrant hereby undertakes that, for purposes of determining           any
liability under the Securities Act of 1933, each filing of the           Registrant&#146;s
annual report pursuant to Section 13(a) or Section 15(d) of           the Securities
Exchange Act of 1934 that is incorporated by reference in the           Registration
Statement shall be deemed to be a new registration statement           relating to the
securities offered herein, and the offering of such securities           at that time
shall be deemed to be the initial bona fide offering thereof.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;          Insofar
as indemnification for liabilities arising under the Securities Act of           1933 may
be permitted to directors, officers and controlling persons of the           Registrant
pursuant to the foregoing provisions, or otherwise, the Registrant           has been
advised that in the opinion of the Commission such indemnification is           against
public policy as expressed in the Securities Act of 1933 and is,           therefore,
unenforceable. In the event that a claim for indemnification against           such
liabilities (other than the payment by the Registrant of expenses incurred           or
paid by a director, officer or controlling person of the Registrant in the
          successful defense of any action, suit or proceeding) is asserted by such
          director, officer or controlling person in connection with the securities being
          registered, the Registrant will, unless in the opinion of its counsel the
matter           has been settled by controlling precedent, submit to a court of
appropriate           jurisdiction the question whether such indemnification by it is
against public           policy as expressed in the Securities Act of 1933 and will be
governed by the           final adjudication of such issue.  </FONT></P>



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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-5- </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURES </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;S-8 and has duly caused this Registration Statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of Plymouth, State of
Wisconsin, on December 28, 2007. </FONT></P>


<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>ORION ENERGY SYSTEMS, INC.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR><BR>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>By:&nbsp;&nbsp;<U>/s/ Neal R. Verfuerth</U></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Neal R. Verfuerth</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;President and Chief Executive Officer</FONT></TD></TR>
</TABLE>




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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated. Each
person whose signature appears below constitutes and appoints Neal R. Verfuerth and Daniel
J. Waibel, and each of them, his or her true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for him or her and in his or her name,
place and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement and to file the same, with all
exhibits thereto, and other documents in connection therewith, with the Securities and
Exchange Commission, granting unto each said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform each and every act and thing requisite
and necessary to be done in connection therewith, as fully to all intents and purposes as
he or she might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them, or their or his or her substitute or
substitutes, may lawfully do or cause to be done by virtue hereof. </FONT></P>




<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TH><FONT FACE="Times New Roman" SIZE=2>Signature</FONT><HR ALIGN=LEFT WIDTH=98% SIZE=1 COLOR=BLACK NOSHADE></TH>
     <TH><FONT FACE="Times New Roman" SIZE=2>Title</FONT><HR ALIGN=LEFT WIDTH=98% SIZE=1 COLOR=BLACK NOSHADE></TH></TR>
<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Neal R. Verfuerth</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>President and Chief Executive Officer and Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Neal R. Verfuerth</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>(Principal Executive Officer)</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Daniel J. Waibel</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Chief Financial Officer (Principal Financial Officer</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Daniel J. Waibel</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>and Principal Accounting Officer)</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Thomas A. Quadracci</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Chairman of the Board</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Thomas A. Quadracci</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Michael J. Potts</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Michael J. Potts</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Diana Propper de Callejon</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Diana Propper de Callejon</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ James R. Kackley</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>James R. Kackley</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Eckhart G. Grohmann</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Eckhart G. Grohmann</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR>/s/ Patrick J. Trotter</FONT><HR WIDTH=60% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>Patrick J. Trotter</FONT></TD></TR>
</TABLE>


 <BR>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-6- </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXHIBIT INDEX </FONT></H1>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           <U>Exhibit No.</U> </FONT></TD>
<TD WIDTH=80% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Exhibit</U></FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.1) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Articles of Incorporation of the Company (incorporated by
               reference to Exhibit 3.3 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.2) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Bylaws of the Company (incorporated by reference to Exhibit
               3.5 to the Company&#146;s Registration Statement on Form S-1 (Reg. No.
               333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.3) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amended
and Restated Investors&#146; Rights Agreement by and among the Company                and
the signatories thereto, dated August 3, 2007 (incorporated by reference to
               Exhibit 4.1 to the Company&#146;s Registration Statement on Form S-1 (Reg.
No.                333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.4) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Orion
Energy Systems, Inc. 2003 Stock Option Plan, as amended (incorporated by
               reference to Exhibit 10.6 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.5) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2003 Stock
               Option Plan (incorporated by reference to Exhibit 10.7 to the Company&#146;s
               Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.6) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amendment
to Stock Option Agreement between Bruce Wadman and Orion Energy                Systems,
Inc. dated February 19, 2007 (incorporated by reference to Exhibit 10.8                to
the Company&#146;s Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.7) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Orion
Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (incorporated by
               reference to Exhibit 10.9 to the Company&#146;s Registration Statement on
Form                S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

<!-- MARKER FORMAT-SHEET="Para Hang Lv 1-TNR" FSL="Project" -->
<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.8) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Equity
               Incentive Plan (incorporated by reference to Exhibit 10.10 to the Company&#146;s
               Registration Statement on Form S-1 (Reg. No. 333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

<!-- MARKER FORMAT-SHEET="Para Hang Lv 1-TNR" FSL="Project" -->
<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(4.9) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Stock
               and Incentive Awards Plan (incorporated by reference to Exhibit 10.11 to
the                Company&#146;s Registration Statement on Form S-1 (Reg. No.
333-145569)). </FONT></TD>
</TR>
</TABLE>
<BR>

<!-- MARKER FORMAT-SHEET="Para Hang Lv 1-TNR" FSL="Project" -->
<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(5) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Foley &amp; Lardner LLP. </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(23.1) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Grant Thornton LLP. </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(23.2) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Foley &amp; Lardner LLP (contained in Exhibit 5 hereto). </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=15% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(24) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Power
of Attorney (included on the signature page to this Registration           Statement). </FONT></TD>
</TR>
</TABLE>
<BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>-7- </FONT></P>

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</HTML>
[{"type": "S-8", "sequence": "1", "filename": "cmw3175.htm", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 51134}]
{"company-data": {"conformed-name": "ORION ENERGY SYSTEMS, INC.", "cik": "0001409375", "assigned-sic": "3640", "irs-number": "391847269", "state-of-incorporation": "WI", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-148401", "film-number": "071332609"}, "business-address": {"street1": "1204 PILGRIM ROAD", "city": "PLYMOUTH", "state": "WI", "zip": "53073", "phone": "800-660-9340"}, "mail-address": {"street1": "1204 PILGRIM ROAD", "city": "PLYMOUTH", "state": "WI", "zip": "53073"}}
As filed with the
Securities and Exchange Commission on December 28, 2007
Registration No.
333-__________
UNITED STATES
SECURITIES AND
EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
THE SECURITIES ACT OF
1933
Orion Energy Systems,
Inc.
(Exact name of registrant as specified in its charter)
Wisconsin
39-1847269
(State or other jurisdiction
(I.R.S. Employer
of incorporation or organization)
Identification No.)
1204 Pilgrim Road
Plymouth, WI
53073
(Address of principal executive offices)
(Zip Code)
Orion Energy Systems,
Inc. 2003 Stock Option Plan, as amended
Orion Energy Systems, Inc. 2004 Stock and
Incentive Awards Plan
(Full title of the plan)
Neal R. Verfuerth
President and Chief Executive Officer
Copy to:
Orion Energy Systems, Inc.
1204 Pilgrim Road
Steven R. Barth, Esq.
Plymouth, WI 53073
Carl R. Kugler, Esq.
(920) 892-9340
Foley & Lardner LLP
(Name, address and telephone number, including
777 East Wisconsin Avenue
area code, of agent for service)
Milwaukee, Wisconsin 53202
CALCULATION OF REGISTRATION FEE
Title of
Securities to be
Registered
Amount
to be
Registered
(1)
Proposed Maximum
Offering Price Per
Share
(2)
Proposed Maximum
Aggregate Offering
Price
(2)
Amount of
Registration
Fee
Common Stock,
6,451,177 shares
$19.21
$123,927,111
$3,805
no par value
(1)
The
number of shares of common stock, no par value ("Common Stock"),
          consists of the aggregate number of shares that may be sold (i) upon the
          exercise of options that have been granted under the Orion Energy Systems, Inc.
          2003 Stock Option Plan, as amended (the "2003 Plan"), and the Orion
          Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (the "2004
          Plan" and, together with the 2003 Plan, the "Plans") and (ii)
          upon the exercise of options or issuances of stock awards that may hereafter be
          granted under the 2004 Plan. The terms of the Plans provide for a change in the
          number of shares that may be issued under the Plans to prevent dilution or
          enlargement in the event of certain transactions, including certain stock
          dividends and similar transactions. Accordingly, pursuant to Rule 416 under the
          Securities Act of 1933, as amended, this Registration Statement covers, in
          addition to the number of shares stated above, an indeterminate number of
shares           that may be subject to grant or otherwise issuable after the occurrence
of any           such change under the terms of the Plans.
(2)
Estimated
pursuant to Rule 457(c) and (h) under the Securities Act of 1933, as           amended,
solely for the purpose of calculating the registration fee on the basis           of the
average of the high and low prices of the Common Stock as reported on the
          Nasdaq Global Market on December 21, 2007.
PART I
INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS
The
document or documents containing the information specified in Part I are not required to
be filed with the Securities and Exchange Commission (the "Commission") as part
of this Form S-8 Registration Statement.
PART II
INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents
by Reference
The
following documents previously filed with the Commission by Orion Energy Systems, Inc.
(hereinafter referred to as the "Company" or the "Registrant") are
hereby incorporated herein by reference:
(a)
The
Company's prospectus filed pursuant to Rule 424(b)(4) of the
               Securities Act of 1933, as amended, as filed with the Commission on
December 19,                2007 as a part of the Company's Registration Statement
on Form S-1, as                amended (Reg. No. 333-145569), which includes audited
financial statements of                the Company for the year ended March 31, 2007 and
a description of the                Company's common stock, no par value (the "Common
Stock").
(b)
The
description of the Common Stock contained in the Company's Registration
               Statement on Form 8-A (File No. 001-33887) filed with the Commission on
               December 14, 2007 pursuant to Section 12(b) of the Securities
Exchange                Act of 1934, as amended (the "Exchange Act"), including
any amendment                or report filed for the purpose of updating such
description.
All
documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act after the date of filing of this Registration Statement and
prior to such time as the Company files a post-effective amendment to this Registration
Statement that indicates that all securities offered hereby have been sold or that
deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be a part hereof from the date of filing
of such documents.
Item 4. Description of
Securities.
Not
applicable.
Item 5. Interests of
Named Experts and Counsel.
Not
applicable.
Item 6. Indemnification
of Directors and Officers.
Article IX
of the Company's Amended and Restated Bylaws (the "Bylaws") provides that,
to the fullest extent permitted or required by Wisconsin law, the Company will indemnify
all of its directors and officers, any trustee of any of the Company's employee
benefit plans and any person who is serving at the Company's request as a director,
officer, employee or agent of another entity, against certain liabilities and losses
incurred in connection with these positions or services. The Company will indemnify these
parties to the extent the parties are successful in the defense of a proceeding and in
proceedings in which the party is not successful in the defense of the proceeding unless,
in the latter case only, it is determined that the party breached or failed to perform his
or her duties to the Company and this breach or failure constituted:
-2-
•
a
willful failure to deal fairly with the Company or the shareholders of the Company in
connection with a matter in which the director or officer has a material conflict of
interest;
•
a
 violation  of  criminal  law,  unless the  director  or officer  had  reasonable  cause
to believe  his or her  conduct was                   unlawful;
•
a
transaction from which the director or officer derived an improper personal profit; or
•
willful
misconduct.
The
Bylaws provide that the Company is required to indemnify its directors and executive
officers and may indemnify its employees and other agents to the fullest extent required
or permitted by Wisconsin law. Additionally, the Bylaws require the Company under certain
circumstances to advance reasonable expenses incurred by a director or officer who is a
party to a proceeding for which indemnification may be available.
Wisconsin
law further provides that it is the public policy of the State of Wisconsin to require or
permit indemnification, allowance of expenses and insurance to the extent required or
permitted under Wisconsin law for any liability incurred in connection with a proceeding
involving a federal or state statute, rule or regulation regulating the offer, sale or
purchase of securities.
Under
Wisconsin law, a director is not personally liable for breach of any duty resulting solely
from his or her status as a director, unless it is proved that the director's conduct
constituted conduct described in the bullet points above. In addition, the Company intends
to obtain directors' and officers' liability insurance that will insure against
certain liabilities, including liabilities under the Securities Act of 1933, as amended,
subject to applicable restrictions.
Item 7. Exemption from
Registration Claimed.
Not
Applicable.
-3-
Item 8.  Exhibits.
The
following exhibits have been filed (except where otherwise indicated) as part of this
Registration Statement:
Exhibit No.
Exhibit
(4.1)
Amended
and Restated Articles of Incorporation of the Company (incorporated by
               reference to Exhibit 3.3 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.2)
Amended
and Restated Bylaws of the Company (incorporated by reference to Exhibit
               3.5 to the Company's Registration Statement on Form S-1 (Reg. No.
               333-145569)).
(4.3)
Amended
and Restated Investors' Rights Agreement by and among the Company                and
the signatories thereto, dated August 3, 2007 (incorporated by reference to
               Exhibit 4.1 to the Company's Registration Statement on Form S-1 (Reg.
No.                333-145569)).
(4.4)
Orion
Energy Systems, Inc. 2003 Stock Option Plan, as amended (incorporated by
               reference to Exhibit 10.6 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.5)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2003 Stock
               Option Plan (incorporated by reference to Exhibit 10.7 to the Company's
               Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.6)
Amendment
to Stock Option Agreement between Bruce Wadman and Orion Energy                Systems,
Inc. dated February 19, 2007 (incorporated by reference to Exhibit 10.8                to
the Company's Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.7)
Orion
Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (incorporated by
               reference to Exhibit 10.9 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.8)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Equity
               Incentive Plan (incorporated by reference to Exhibit 10.10 to the Company's
               Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.9)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Stock
               and Incentive Awards Plan (incorporated by reference to Exhibit 10.11 to
the                Company's Registration Statement on Form S-1 (Reg. No.
333-145569)).
(5)
Opinion
of Foley & Lardner LLP.
(23.1)
Consent
of Grant Thornton LLP.
(23.2)
Consent
of Foley & Lardner LLP (contained in Exhibit 5 hereto).
(24)
Power
of Attorney (included on the signature page to this Registration           Statement).
-4-
Item 9. Undertakings.
(a)    
               The undersigned Registrant hereby undertakes:
(1)                   To
file, during any period in which offers or sales are being made, a
               post-effective amendment to this Registration Statement:
(i)    
               To include any prospectus required by Section 10(a)(3) of the Securities
Act of                1933;
(ii)    
               To reflect in the prospectus any facts or events arising after the
effective                date of the Registration Statement (or the most recent
post-effective amendment                thereof) which, individually or in the aggregate,
represent a fundamental change                in the information set forth in the
Registration Statement; and
(iii)    
               To include any material information with respect to the plan of
distribution not                previously disclosed in the Registration Statement or any
material change to                such information in the Registration Statement;
provided
,
however
, that
paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be
included in a post-effective amendment by those paragraphs is contained in periodic
reports filed with or furnished to the Commission by the Registrant pursuant to Section 13
or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the Registration Statement.
(2)              That,
for the purpose of determining any liability under the Securities Act of           1933,
each such post-effective amendment shall be deemed to be a new           registration
statement relating to the securities offered herein, and the           offering of such
securities at that time shall be deemed to be the initial bona           fide offering
thereof.
(3)              To
remove from registration by means of a post-effective amendment any of the
          securities being registered which remain unsold at the termination of the
          offering.
(b)              The
undersigned Registrant hereby undertakes that, for purposes of determining           any
liability under the Securities Act of 1933, each filing of the           Registrant's
annual report pursuant to Section 13(a) or Section 15(d) of           the Securities
Exchange Act of 1934 that is incorporated by reference in the           Registration
Statement shall be deemed to be a new registration statement           relating to the
securities offered herein, and the offering of such securities           at that time
shall be deemed to be the initial bona fide offering thereof.
(c)              Insofar
as indemnification for liabilities arising under the Securities Act of           1933 may
be permitted to directors, officers and controlling persons of the           Registrant
pursuant to the foregoing provisions, or otherwise, the Registrant           has been
advised that in the opinion of the Commission such indemnification is           against
public policy as expressed in the Securities Act of 1933 and is,           therefore,
unenforceable. In the event that a claim for indemnification against           such
liabilities (other than the payment by the Registrant of expenses incurred           or
paid by a director, officer or controlling person of the Registrant in the
          successful defense of any action, suit or proceeding) is asserted by such
          director, officer or controlling person in connection with the securities being
          registered, the Registrant will, unless in the opinion of its counsel the
matter           has been settled by controlling precedent, submit to a court of
appropriate           jurisdiction the question whether such indemnification by it is
against public           policy as expressed in the Securities Act of 1933 and will be
governed by the           final adjudication of such issue.
-5-
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 the City of Plymouth, State of
Wisconsin, on December 28, 2007.
ORION ENERGY SYSTEMS, INC.
By:
/s/ Neal R. Verfuerth
Neal R. Verfuerth
President and Chief Executive Officer
Pursuant
to the requirements of the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated. Each
person whose signature appears below constitutes and appoints Neal R. Verfuerth and Daniel
J. Waibel, and each of them, his or her true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for him or her and in his or her name,
place and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement and to file the same, with all
exhibits thereto, and other documents in connection therewith, with the Securities and
Exchange Commission, granting unto each said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform each and every act and thing requisite
and necessary to be done in connection therewith, as fully to all intents and purposes as
he or she might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them, or their or his or her substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.
Signature
Title
/s/ Neal R. Verfuerth
President and Chief Executive Officer and Director
Neal R. Verfuerth
(Principal Executive Officer)
/s/ Daniel J. Waibel
Chief Financial Officer (Principal Financial Officer
Daniel J. Waibel
and Principal Accounting Officer)
/s/ Thomas A. Quadracci
Chairman of the Board
Thomas A. Quadracci
/s/ Michael J. Potts
Director
Michael J. Potts
/s/ Diana Propper de Callejon
Director
Diana Propper de Callejon
/s/ James R. Kackley
Director
James R. Kackley
/s/ Eckhart G. Grohmann
Director
Eckhart G. Grohmann
/s/ Patrick J. Trotter
Director
Patrick J. Trotter
-6-
EXHIBIT INDEX
Exhibit No.
Exhibit
(4.1)
Amended
and Restated Articles of Incorporation of the Company (incorporated by
               reference to Exhibit 3.3 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.2)
Amended
and Restated Bylaws of the Company (incorporated by reference to Exhibit
               3.5 to the Company's Registration Statement on Form S-1 (Reg. No.
               333-145569)).
(4.3)
Amended
and Restated Investors' Rights Agreement by and among the Company                and
the signatories thereto, dated August 3, 2007 (incorporated by reference to
               Exhibit 4.1 to the Company's Registration Statement on Form S-1 (Reg.
No.                333-145569)).
(4.4)
Orion
Energy Systems, Inc. 2003 Stock Option Plan, as amended (incorporated by
               reference to Exhibit 10.6 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.5)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2003 Stock
               Option Plan (incorporated by reference to Exhibit 10.7 to the Company's
               Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.6)
Amendment
to Stock Option Agreement between Bruce Wadman and Orion Energy                Systems,
Inc. dated February 19, 2007 (incorporated by reference to Exhibit 10.8                to
the Company's Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.7)
Orion
Energy Systems, Inc. 2004 Stock and Incentive Awards Plan (incorporated by
               reference to Exhibit 10.9 to the Company's Registration Statement on
Form                S-1 (Reg. No. 333-145569)).
(4.8)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Equity
               Incentive Plan (incorporated by reference to Exhibit 10.10 to the Company's
               Registration Statement on Form S-1 (Reg. No. 333-145569)).
(4.9)
Form
of Stock Option Agreement under the Orion Energy Systems, Inc. 2004 Stock
               and Incentive Awards Plan (incorporated by reference to Exhibit 10.11 to
the                Company's Registration Statement on Form S-1 (Reg. No.
333-145569)).
(5)
Opinion
of Foley & Lardner LLP.
(23.1)
Consent
of Grant Thornton LLP.
(23.2)
Consent
of Foley & Lardner LLP (contained in Exhibit 5 hereto).
(24)
Power
of Attorney (included on the signature page to this Registration           Statement).
-7-