Flex Your Power NOW! PowerWatch Days Extended Through Wednesday

Business Wire, June 26, 2006

FOLSOM, Calif. -- The triple digit heat wave that has gripped much of the state for the last five days is intensifying today in Southern California and continuing in Northern California. Temperatures as high as 110 in the Central Valley will continue on Monday and hot weather is extending into the Southern California coastal areas where the population density is higher. The California ISO is predicting possible record-breaking energy usage in California today and is extending the Flex Your Power NOW! PowerWatch days through Wednesday, June 28 until 7:00 p.m. Consumers can help reduce the strain on the power grid by conserving energy, especially between the peak hours of 3:00-7:00 p.m. Energy demand on Monday is forecast for 45,097 megawatts, and may break the all time record peak of 45,431 megawatts, set on July 20, 2005. The California ISO has issued a Restricted Maintenance Operations Notice for Monday 10:00 a.m. to 10:00 p.m. to companies that own power plants or transmission lines in California, asking them not to perform any maintenance work on those assets that might put them at a higher risk of tripping off line.

24-Hour Ahead Outlook for Tuesday, June 27
                  Flex Your Power NOW! PowerWatch Day
       Stage 1: Possible   Stage 2: unlikely   Stage 3: unlikely
    Forecast peak demand: Approx. 43,741 megawatts around 4:00 p.m.

             48-Hour Ahead Outlook for Wednesday, June 28
                  Flex Your Power NOW! PowerWatch Day
       Stage 1: Possible   Stage 2: unlikely   Stage 3: unlikely
    Forecast peak demand: Approx. 41,950 megawatts around 4:00 p.m.

              72-Hour Ahead Outlook for Thursday, June 29
 Cooler temperatures are forecast for Thursday, and may not require a
                  Flex Your Power NOW! PowerWatch Day

Go to www.fypower.org for more conservation tips and please monitor the California ISO website at www.caiso.com for updated information about the electricity supply. The Systems Condition page provides current demand on the Grid and an hourly forecast of the day's electrical surplus/shortfall is available in Today's Outlook.

This advisory is based on the best data available at the time of its release. Grid conditions can change rapidly and are subject to change without warning. The recipient accepts this forecast on the condition that errors, omissions and/or changes to the contents shall not be made the basis for any claim, demand or cause of action against the California ISO.

Stage 1 Emergency
Consumers are urged to reduce their use of electricity voluntarily to
avoid severe conditions.

Stage 2 Emergency
Voluntary interruption of service to select customers is possible to
avoid more severe conditions.

Stage 3 Emergency
Consumers are advised that involuntary interruptions of service have
begun and will continue until the emergency has passed.


Powerful Habits

--  Set thermostat at 78 degrees or higher
--  Cool with fans
--  Draw the drapes
--  Turn off unnecessary lights and appliances
--  Use big appliances in early morning or late at night