Holding(s) in Company

ITM Power PLC
10 June 2005

10 June 2005

                                 ITM Power plc

                               Holding in Company



NOTIFICATIONS UNDER SECTIONS 198 TO 202 - - U.K. COMPANIES ACT



1.   Company in which shares are held:     ITM Power plc



2.   Notifiable Interest:           Ordinary Shares of 5p each



     (A) FMR Corp.
         82 Devonshire Street
         Boston, MA 02109


           Parent holding company of Fidelity Management & Research Company
           (FMRCO), investment manager for US mutual funds, and Fidelity
           Management Trust Company (FMTC), a US state chartered bank which
           acts as a trustee or investment manager of various pension and trust
           accounts. (See Schedule A for listing of Registered Shareholders and
           their holdings).



     (B) Fidelity International Limited (FIL)
         P.O. Box HM 670
         Hamilton HMCX, Bermuda

           Parent holding company for various direct and indirect subsidiaries,
including Fidelity Investment Services Ltd (FISL), Fidelity Gestion (FIGEST),
Fidelity Investments Advisory (Korea) Limited (FIA(K)L), Fidelity Investments
Management (Hong Kong) Limited (FIMHK), Fidelity Pension Management (FPM) and
Fidelity Investments International (FII), investment managers for various non-US
investment companies and institutional clients.



3.         The notifiable interests also comprise the notifiable interest of:



           Mr. Edward C. Johnson 3d
           82 Devonshire Street
           Boston, MA 02109

           A principal shareholder of FMR Corp. and Fidelity International
           Limited.



4.         The notifiable interests include interest held on behalf of
authorised unit trust schemes in the U.K., notwithstanding the exemption from
reporting pursuant to Section 209 (1)(h) of the Companies Act 1985.



5.         These notifications of disclosable interests constitute separate
      notifications of interest in the shares and are combined solely for
      the purposes of clarity and efficiency.  Nothing herein should be taken
      to indicate that FMR Corp. and its direct and indirect subsidiaries,
      Fidelity International Limited and its direct and indirect subsidiaries or
      Mr. Edward C. Johnson 3d act as a group or in concert in respect of the
      disclosed interests, or that they are required to submit these
      notifications on a joint basis.



6.         The disclosable interests arise under section 208 (4)(b) of the Act,
           namely where a person, not being the registered holder, is entitled
           to exercise a right conferred by the holding of the shares or to
           control the exercise of such rights, or under section 203 of the Act
           respectively.







Schedule A



Security: ITM Power plc




Shares Held                        Management     Nominee/Registered Name
                                     Company

604,400                         FIL               BROWN BROS HARRIMAN LTD LUX
291,300                         FISL              JP MORGAN, BOURNEMOUTH
2,614,600                       FMRCO             MELLON BANK N.A.
47,400                          FPM               BANK OF NEW YORK BRUSSELS
49,900                          FPM               CLYDESDALE BANK PLC
69,800                          FPM               MELLON BANK
37,500                          FPM               NORTHERN TRUST LONDON
62,000                          FPM               STATE STREET BANK & TRUST CO LDN


Total Ordinary Shares:                            3,776,900
Current ownership percentage:                     4.09%
Change in holding since last filing:              +1,096,200
Date company notified:                            9 June 2005


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