RNS Number:5672K
Ceres Power Holdings plc
21 December 2007

A Price Monitoring Extension has been activated in this security.

A Price Monitoring Extension is activated when the auction matching process
would result in an auction price that is a
pre-determined percentage above or below the base price.  The auction call
period is extended for 5 minutes.

For details of how base prices are set for each market, please refer to the
Guide to Trading Service at