Holding(s) in Company

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Ceres Power Holdings PLC

2. Reason for the notification   (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights 

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify):________

3. Full name of person(s) subject to the notification obligation:

OppenheimerFunds Inc (OFI) 

4. Full name of shareholder(s) (if different from 3.):

5. Date of the transaction (and date on which the threshold is crossed or reached if different):

September 10, 2008

6. Date on which issuer notified:

September 11, 2008

7. Threshold(s) that is/are crossed or reached:

10% (10.06%)

8. Notified details:

[email protected]

A: Voting rights attached to shares

Class/type of shares 

 if possible using the ISIN CODE

Situation previous to the Triggering transaction

Resulting situation after the triggering transaction

Number of Shares 

Number of Voting Rights

Number of shares 

Number of voting rights 

% of voting rights

Direct

Direct

Indirect 

Direct

Indirect

GB00B0351429

OFI

6,053,400

6,053,400

6,714,643

6,714,643

10.06%

B: Financial Instruments

Resulting situation after the triggering transaction 

Type of financial instrument 

Expiration date 

Exercise/ Conversion Period/ Date 

Number of voting rights that may be acquired if the instrument is exercised/ converted. 

% of voting rights

Total (A+B)

Number of voting rights

% of voting rights

6,714,643

10.06%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

OppenehimerFunds, Inc. owns, as of 9/10/08, 6,714,643 shares equal to 10.06%.

 of the shares outstanding (66,741,875).

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

Massachusetts Mutual Life Insurance Company is the parent company of OppenheimerFunds, Inc.

14. Contact name:

Jennifer Ryan, Compliance Consultant 

Massachusetts Mutual Life Insurance Company

15. Contact telephone number:

413-744-6618