California ISO Declared Stage Three Emergency Overnight for Northern California Only.Business & News Editors FOLSOM, Calif.--(BUSINESS WIRE)--Jan. 12, 2001 The California Independent System Operator (California ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. ) declared a Northern California-only Stage Three Electrical Emergency today, January 12, 2001, from 12:00 a.m. through 3:00 a.m. this morning. This occurred when operating reserves In power systems, the operating reserve is the generating capacity available to the system operator within a short interval of time to meet demand in case a generator is lost or there is another disruption to the supply. were forecasted to fall below one-and-a-half percent because of inadequate resources. Hydroelectricity resources normally used overnight had been depleted de·plete tr.v. de·plet·ed, de·plet·ing, de·pletes To decrease the fullness of; use up or empty out. [Latin d during the earlier emergencies yesterday and water levels in Northern California Northern California, sometimes referred to as NorCal, is the northern portion of the U.S. state of California. The region contains the San Francisco Bay Area, the state capital, Sacramento; as well as the substantial natural beauty of the redwood forests, the northern reservoirs are running very low. The California ISO was able to secure emergency resources, once the Stage Three was declared. California Department of Water Resources History 1850-1875 California recognizes many types of water rights. These rights have developed with the State over time. Prior to the Treaty of Guadalupe Hidalgo, signed in 1848, California was part of Mexico. aqueduct aqueduct (ăk`wədŭkt) [Lat.,=conveyor of water], channel or trough built to convey water, chiefly for providing a densely populated region with a supply of freshwater. pump load was shut down near Oroville to curtail cur·tail tr.v. cur·tailed, cur·tail·ing, cur·tails To cut short or reduce. See Synonyms at shorten. [Middle English curtailen, to restrict power demand on the Grid. No rotating blackouts were issued and customers were not affected. Yesterday's Stage One and Stage Two electrical emergencies were extended at midnight last night and they are in effect until 10:00 p.m. tonight. The California ISO does not expect to call on voluntary interruptible customers to manage the morning spike in electricity use that occurs between 6 and 9 a.m., but may need to ask for the interruptible load if conditions change. The ISO urges interruptible customers to wait to shed their contracted electrical load If an electric circuit has a well-defined output terminal, the circuit connected to this terminal (or its input impedance) is the load. (The term 'load' may also refer to the power consumed by a circuit; that topic is not discussed here. until specified to do so by their local utility. Interruptible customers, mainly commercial and industrial users, receive a reduced rate in exchange for a commitment to come off line when asked to do so for reliability purposes. California ISO is charged with managing the flow of electricity along the long-distance, high-voltage power lines that make up the bulk of California's transmission system. The not-for-profit public-benefit corporation assumed the responsibility in March, 1998, when California opened its energy markets to competition and the state's investor-owned utilities turned their private transmission power lines over to the California ISO to manage. The mission of the California ISO is to safeguard the reliable delivery of electricity, facilitate markets and ensure equal access to a 12,500 circuit mile "electron highway." Information about the California ISO control area's electricity supply and the current demand is available on the web at www.caiso.com. MEDIA TELECONFERENCE CALLS WILL BE HELD TODAY AT 10:00 a.m., 2:00 p.m. and 6:15 p.m. NUMBER: 1 800 374-1387 PASSCODE: ISO NEWS CONFERENCE |
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