California ISO Calls for Energy Conservation; Major Heat Wave Expected to Increase Power Demand.

News Editors & Energy Writers

FOLSOM, Calif.--(BUSINESS WIRE)--June 12, 2000

Weather forecasts calling for high temperatures throughout much of the state this week have prompted the California Independent System Operator (California ISO) to declare Tuesday, June 13 a Power Watch Day.

The California ISO urges Californians to watch their energy consumption, curtailing their use of electricity whenever possible.

With inland highs expected to be in the triple digits and coastal temperatures in the 90s for several days this week, air conditioners are expected to create a heavy demand for electricity. The peak demand on the ISO-controlled Grid is expected to climb to 44,756 megawatts by Tuesday afternoon. The record peak was 45,884 megawatts on July 12, 1999.

Power Watch 2000 is a public awareness campaign sponsored by the California ISO to communicate the current electricity resource outlook, in light of the rising demand for power in California. By providing regular updates on system conditions and peak demand forecasts, the California ISO hopes to convey the importance of using electricity wisely on days when electricity reserves may run low.

Incorporated under California law (AB 1890), the not-for-profit California ISO is chartered by the state to manage the flow of electricity along the long-distance, high-voltage power lines that make up the bulk of California's transmission system. Following the restructuring of the state's electricity industry, the California ISO's mission is to keep the open market power grid in California reliable, competitive and accessible.

For questions relating to the status of the electrical distribution systems that carry electricity directly to homes and businesses, please contact your local utility.

      Heat Wave Tips

      --  Draw drapes

      --  Set thermostat at 78 degrees or higher

      --  Cool with fans

      --  Use appliances in early morning or late at night

STAGE 1

Consumers are urged to reduce their use of electricity voluntarily to avoid more severe conditions.

STAGE 2

Voluntary interruption of service to select customers is required to avoid more severe conditions.

STAGE 3

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