Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Fox John C
  2. Issuer Name and Ticker or Trading Symbol
DISTRIBUTED ENERGY SYSTEMS CORP [DESC]
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)
C/O PERSEUS, L.L.C., 2099 PENNSYLVANIA AVE., N.W., 9TH FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
01/31/2008
(Street)

WASHINGTON, DC 20006
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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
Non-Qualified Stock Option (right to buy) $ 0.57 01/31/2008   A(1)(2)   1,400 (1)   01/31/2008 01/31/2018 Common Stock 1,400 (1) $ 0.57 1,400 (1) (2) (3) D (2) (3)  
Non-Qualified Stock Option (right to buy) $ 0.47 04/03/2008   A(1)(2)   1,400 (1)   04/03/2008 04/03/2018 Common Stock 1,400 (1) $ 0.47 1,400 (1) (2) (3) D (2) (3)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Fox John C
C/O PERSEUS, L.L.C.
2099 PENNSYLVANIA AVE., N.W., 9TH FLOOR
WASHINGTON, DC 20006
  X      

Signatures

 /s/ John C. Fox   04/10/2008
**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) These non-qualified stock options were granted to John C. Fox on January 31, 2008 and April 3, 2008, respectively, pursuant to the Distributed Energy Systems Corp. Board of Directors Compensation program and are 100% vested at the time of the grant.
(2) Mr. Fox was nominated by Perseus Partners VII, L.P. ("Perseus VII") as a director of the Issuer, pursuant to Perseus VII's rights under a Securities Purchase Agreement, dated May 10, 2007, between Perseus VII and the Issuer. Mr. Fox holds all options, shares of restricted common stock and other securities issued to him as a nominee of Perseus VII, and disclaims beneficial ownership thereof, except to the extent he may have any pecuniary interest therein.
(3) Perseus VII is a Delaware limited partnership. Its general partner is Perseus Partners VII GP, L.P., a Delaware limited partnership. Perseus Partners VII GP, L.L.C., a Delaware limited liability company, is the general partner of Perseus Partners VII GP, L.P. The sole member of Perseus Partners VII GP, L.L.C. is Perseus, L.L.C., a Delaware limited liability company. Perseuspur, L.L.C., a Delaware limited liability company, is the managing member of Perseus, L.L.C. Frank H. Pearl, individually, owns 72.9 % of Perseuspur, L.L.C. He also is the sole director and sole shareholder of Rappahannock Investment Company, a Delaware corporation, which in turn owns the remaining 27.1% of Perseuspur, L.L.C. By virtue of such control, Mr. Pearl may be deemed to have beneficial ownership of any shares or other securities that have been or may be issued to Mr. Fox as a nominee of Perseus VII.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.