Change of Adviser

Proton Power Systems PLC
25 July 2007

25 July 2007

                            Proton Power Systems plc

                               Change of Adviser

Proton Power Systems plc ('PPS'), an expert in industrial fuel cells, fuel cells
and fuel cell electric hybrid systems, today is pleased to announce that it has
appointed Noble & Company Limited as nominated adviser and broker with immediate
effect.

Enquiries:
Proton Power Systems plc                    [phone]
Felix Heidelberg

Noble & Company Limited                     [phone]
John Llewellyn-Lloyd
Graeme Bayley


Notes to Editors

PPS, through its subsidiary Proton Motor Fuel Cell GmbH ('PM'), has developed
and produced a standard fuel cell module, fuelled by hydrogen integrated with an
energy storage system to create a hybrid electric fuel cell system capable of
providing power during peak demand situations. The market focus is on industrial
applications where 'back-to-base' refueling occurs, on site, at the end of each
shift or work period.

The Group has identified opportunities to replace batteries with their PEM fuel
cell systems and has identified niche markets in the materials handling and
mass-transportation sectors where hybrid electric fuel cell systems offer
considerable advantages over conventional engine technology and fuel cell only
drive systems. The Group has identified two initial market segments in which the
Directors believe the advantages of hybrid electric fuel cell systems will lead
to economic benefits for the end user - forklift trucks and buses. In most
cases, these vehicles operate within a defined radius or return to central
points of operation.

The many advantages over current commercial alternatives include lower fuel
consumption, longer periods between refueling, shorter refueling, consistent
levels of power delivery and zero harmful emissions.

PM's technology development has been undertaken with the key objectives of
multiple applications and volume production.

PPS was admitted to trading on AIM on October 31, 2006.

Further information can be found at www.protonpowersystems.com


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