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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">UNITED STATES</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>FORM 8-K</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>CURRENT
REPORT</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PURSUANT TO SECTION 13 OR 15(d) OF THE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of Report (Date of earliest event
reported) <U>June 11, 2012</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>ACORN ENERGY, INC.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact name of Registrant as Specified
in its Charter)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <TD STYLE="width: 30%; text-align: center; border-bottom: Black 1pt solid">Delaware</TD>
    <TD STYLE="width: 4%; text-align: center; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="width: 32%; text-align: center; border-bottom: Black 1pt solid">0-19771</TD>
    <TD STYLE="width: 4%; text-align: center; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="width: 30%; text-align: center; border-bottom: Black 1pt solid">22-2786081</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">(State or Other Jurisdiction</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(Commission file Number)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(IRS Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">of Incorporation)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">Identification No.)</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 62%; border-bottom: Black 1pt solid; padding-left: 0.24in">4 West Rockland Road, Montchanin, Delaware</TD>
    <TD STYLE="width: 5%; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="width: 33%; text-align: left; border-bottom: Black 1pt solid">19710</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 0.24in">&nbsp;&nbsp;(Address of Principal Executive Offices)</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: left">(Zip Code)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Registrant&rsquo;s telephone number, including
area code <U>(302) 656-1707</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify">Written communications pursuant to Rule 425 under the
Securities Act (17 CFR 230.425)</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify">Soliciting material pursuant to Rule 14a-2 under the
Exchange Act (17 CFR 240.14a-2)</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 14d-2(b)
under the Exchange Act (17 CFR 240.14d-2(b))</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 13e-4(c)
under the Exchange Act (17 CFR 240.13e-4(c))</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 5.02&nbsp;&nbsp;&nbsp;Departure of Directors or Certain Officers; Election
of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">GridSense, Inc., a
wholly-owned subsidiary of Acorn Energy, Inc. (&ldquo;GridSense&rdquo;) and Lindon Shiao entered into an At-Will Employment,
Confidential Information, Non-Solicitation and Invention Assignment Agreement and a related Arbitration Agreement (together,
the &ldquo;Employment Agreement&rdquo;) on June 11, 2012. Mr. Shiao has served as CEO and President of GridSense
since 2006.&nbsp;&nbsp;Previously, he provided these services through a management agreement between GridSense and a third
party entity in which he remains a principal, which prior agreement has been terminated. Mr. Shiao&rsquo;s employment is on
an &ldquo;at-will&rdquo; basis and the Employment Agreement has no fixed term.&nbsp;&nbsp;It provides that
GridSense&rsquo;s Board of Directors will set Mr. Shiao&rsquo;s base salary (which is currently $240,000 for 2012), and
contains an opportunity for him to earn an annual bonus which would be payable in arrears based on a targeted increase in
gross profits for the combined (i.e., US and Australian affiliate) GridSense business over prior year results (which formula
is subject to change by the Board in the future). Mr. Shiao is also entitled to receive severance payments equal to (A)
twelve (12) months of his then-current base salary and (B) the amount of his most recent annual bonus if, during a stated
period, GridSense terminates his services without &ldquo;cause&rdquo; (as defined in the Employment Agreement), or if he
quits for &ldquo;good reason&rdquo; (as defined therein), in either case in connection with a &ldquo;change of control&rdquo;
of GridSense (as defined in the Employment Agreement). Further, upon termination of his employment by GridSense without
&ldquo;cause&rdquo; (apart from his death or disability), or upon his resignation for &ldquo;good reason&rdquo;, in either
case not involving a change of control, GridSense is obligated to pay Mr. Shiao an amount equal to (A) six (6) months of his
then-current base salary and (B) one-half the amount of his most recent annual bonus. All severance amounts are payable in 12
equal installments.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURES</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to the requirements
of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized on this <FONT STYLE="color: black">14th</FONT> day of June, 2012.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

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<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">ACORN ENERGY, INC.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 5%">By:</TD>
    <TD STYLE="width: 45%; border-bottom: Black 1pt solid">/s/Heather K. Mallard</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Name:</TD>
    <TD>Heather K. Mallard</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Vice President, General Counsel &amp; Secretary</TD></TR>
</TABLE>
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{"company-data": {"conformed-name": "ACORN ENERGY, INC.", "cik": "0000880984", "assigned-sic": "8711", "irs-number": "222786081", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-33886", "film-number": "12907738"}, "business-address": {"street1": "4 WEST ROCKLAND ROAD", "city": "MONTCHANIN", "state": "DE", "zip": "19710", "phone": "3026561708"}, "mail-address": {"street1": "4 WEST ROCKLAND ROAD", "city": "MONTCHANIN", "state": "DE", "zip": "19710"}, "former-company": [{"former-conformed-name": "ACORN FACTOR, INC.", "date-changed": "20060920"}, {"former-conformed-name": "DATA SYSTEMS & SOFTWARE INC", "date-changed": "19931019"}, {"former-conformed-name": "DEFENSE SOFTWARE & SYSTEMS INC", "date-changed": "19930328"}]}
UNITED STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT
REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event
reported)
June 11, 2012
ACORN ENERGY, INC.
(Exact name of Registrant as Specified
in its Charter)
Delaware
0-19771
22-2786081
(State or Other Jurisdiction
(Commission file Number)
(IRS Employer
of Incorporation)
Identification No.)
4 West Rockland Road, Montchanin, Delaware
19710
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including
area code
(302) 656-1707
Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
¨
Written communications pursuant to Rule 425 under the
Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-2 under the
Exchange Act (17 CFR 240.14a-2)
¨
Pre-commencement communications pursuant to Rule 14d-2(b)
under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c)
under the Exchange Act (17 CFR 240.13e-4(c))
Item 5.02   Departure of Directors or Certain Officers; Election
of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
GridSense, Inc., a
wholly-owned subsidiary of Acorn Energy, Inc. ("GridSense") and Lindon Shiao entered into an At-Will Employment,
Confidential Information, Non-Solicitation and Invention Assignment Agreement and a related Arbitration Agreement (together,
the "Employment Agreement") on June 11, 2012. Mr. Shiao has served as CEO and President of GridSense
since 2006.  Previously, he provided these services through a management agreement between GridSense and a third
party entity in which he remains a principal, which prior agreement has been terminated. Mr. Shiao's employment is on
an "at-will" basis and the Employment Agreement has no fixed term.  It provides that
GridSense's Board of Directors will set Mr. Shiao's base salary (which is currently $240,000 for 2012), and
contains an opportunity for him to earn an annual bonus which would be payable in arrears based on a targeted increase in
gross profits for the combined (i.e., US and Australian affiliate) GridSense business over prior year results (which formula
is subject to change by the Board in the future). Mr. Shiao is also entitled to receive severance payments equal to (A)
twelve (12) months of his then-current base salary and (B) the amount of his most recent annual bonus if, during a stated
period, GridSense terminates his services without "cause" (as defined in the Employment Agreement), or if he
quits for "good reason" (as defined therein), in either case in connection with a "change of control"
of GridSense (as defined in the Employment Agreement). Further, upon termination of his employment by GridSense without
"cause" (apart from his death or disability), or upon his resignation for "good reason", in either
case not involving a change of control, GridSense is obligated to pay Mr. Shiao an amount equal to (A) six (6) months of his
then-current base salary and (B) one-half the amount of his most recent annual bonus. All severance amounts are payable in 12
equal installments.
SIGNATURES
Pursuant to the requirements
of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized on this
14th
day of June, 2012.
ACORN ENERGY, INC.
By:
/s/Heather K. Mallard
Name:
Heather K. Mallard
Title:
Vice President, General Counsel & Secretary
3