FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * KACKLEY JAMES R   2. Issuer Name and Ticker or Trading Symbol ORION ENERGY SYSTEMS, INC. [OESX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2210 WOODLAND DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 06/12/2012 (Street) MANITOWOC, WI 54220 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               197,976 D   Common Stock               45,000 I By Spouse as trustee

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Options (right to buy)

$ 2.03

06/12/2012

A

26,646

06/12/2013(1)

06/12/2022

Common Stock

26,646

$ 0

26,646

D

Stock Options (right to buy)

$ 4.49

07/27/2008(2)

07/27/2017

Common Stock

10,000

10,000

D

Stock Options (right to buy)

$ 11.61

05/19/2009(3)

05/19/2018

Common Stock

14,851

14,851

D

Stock Options (right to buy)

$ 3.78

05/19/2010(4)

05/19/2019

Common Stock

10,583

10,583

D

Stock Options (right to buy)

$ 3.49

(5)

08/03/2019

Common Stock

35,000

35,000

D

Stock Options (right to buy)

$ 3.46

05/18/2011(6)

05/18/2020

Common Stock

19,912

19,912

D

Stock Options (right to buy)

$ 4.19

05/23/2012(7)

05/23/2021

Common Stock

22,045

22,045

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KACKLEY JAMES R 2210 WOODLAND DRIVE MANITOWOC, WI 54220	X

Signatures

/s/ Steven R. Barth, Attorney-in-Fact for James R. Kackley		06/14/2012
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted June 12, 2012, vests and becomes exercisable in three equal installments on June 12, 2013, 2014 and 2015, respectively.
(2)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted July 27, 2007, became fully exercisable on July 27, 2008.
(3)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 19, 2008, became fully exercisable on May 19, 2011.
(4)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 19, 2009, became fully exercisable on May 19, 2012.
(5)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted August 3, 2009, vests and becomes exercisable upon any termination of employment other than a termination for cause.
(6)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 18, 2010, vests and becomes exercisable in three equal installments on May 18, 2011, 2012 and 2013, respectively.
(7)	Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 23, 2011, vests and becomes exercisable in three equal installments on May 23, 2012, 2013 and 2014, respectively.

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