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- Pacific_DC_Intertie abstract "The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). The line capacity is 3,100 megawatts, which is enough to serve two to three million Los Angeles households and is 48.7% of the Los Angeles Department of Water and Power (LADWP) electrical system's peak capacity.The intertie originates near the Columbia River at the Celilo Converter Station on Bonneville Power Administration's grid outside The Dalles, Oregon and is connected exclusively to the Sylmar Converter Station north of Los Angeles, which is owned by five utility companies and managed by LADWP. The Intertie can transmit power in either direction, but power flows mostly from north to south.The idea of shipping hydroelectric power to Southern California had been proposed as early as the 1930s, but was opposed and scrapped. By 1961, US president John F. Kennedy authorized a large public works project, using new high voltage direct current technology from Sweden. The project was undertaken as a close collaboration between General Electric of the US and ASEA of Sweden. Private California power companies opposed the project but their technical objections were rebutted by Uno Lamm of ASEA at the IEEE meeting in New York in 1963. When completed in 1970 the combined AC and DC transmission system was estimated to save consumers in Los Angeles approximately US $600,000 per day by use of electric power from projects on the Columbia River.One major advantage of High-voltage direct current over AC is that the DC current penetrates the entire conductor as opposed to AC current which only penetrates the so-called skin depth, which is inversely proportional to the square root of the frequency. Even for a frequency as low as 60 Hz the skin depth is less than the 1.6" radius of the conductor used for the Intertie. Hence the effective resistance is greater with AC than DC, so that more power is lost to heat. A DC line is also ideal for connecting together two AC systems that are not synchronized with each other. Also, cascading blackouts are less likely.The Pacific Intertie takes advantage of differing power demand patterns between the northwestern and southwestern US. During winter, the northern region operates electrical heating devices while the southern portion uses relatively little electricity. In summer, the north uses little electricity while the south reaches peak demand due to air conditioning usage. Any time the Intertie demand lessens, the excess is distributed elsewhere on the western power grid (states west of the Great Plains, including Colorado and New Mexico).".
- Pacific_DC_Intertie thumbnail Pacific_intertie_geographic_map.png?width=300.
- Pacific_DC_Intertie wikiPageExternalLink PACIFIC.htm.
- Pacific_DC_Intertie wikiPageExternalLink Pacific+Pictures.pdf.
- Pacific_DC_Intertie wikiPageExternalLink wecc.biz.
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- Pacific_DC_Intertie wikiPageExternalLink C1256D71001E0037C1256B81002E886B!OpenDocument.
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- Pacific_DC_Intertie wikiPageID "860812".
- Pacific_DC_Intertie wikiPageRevisionID "592586637".
- Pacific_DC_Intertie hasPhotoCollection Pacific_DC_Intertie.
- Pacific_DC_Intertie subject Category:Energy_infrastructure_completed_in_1970.
- Pacific_DC_Intertie subject Category:Energy_resource_facilities_in_California.
- Pacific_DC_Intertie subject Category:Energy_resource_facilities_in_Oregon.
- Pacific_DC_Intertie subject Category:HVDC_transmission_lines.
- Pacific_DC_Intertie subject Category:Western_Interconnection.
- Pacific_DC_Intertie point "45.594166666666666 -121.11416666666666".
- Pacific_DC_Intertie type Artifact100021939.
- Pacific_DC_Intertie type EnergyResourceFacilitiesInCalifornia.
- Pacific_DC_Intertie type EnergyResourceFacilitiesInOregon.
- Pacific_DC_Intertie type Facility103315023.
- Pacific_DC_Intertie type Object100002684.
- Pacific_DC_Intertie type PhysicalEntity100001930.
- Pacific_DC_Intertie type Whole100003553.
- Pacific_DC_Intertie type YagoGeoEntity.
- Pacific_DC_Intertie type YagoPermanentlyLocatedEntity.
- Pacific_DC_Intertie type SpatialThing.
- Pacific_DC_Intertie comment "The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC).".
- Pacific_DC_Intertie label "Pacific DC Intertie".
- Pacific_DC_Intertie label "Pacific DC Intertie".
- Pacific_DC_Intertie label "Pacific DC Intertie".
- Pacific_DC_Intertie sameAs Pacific_DC_Intertie.
- Pacific_DC_Intertie sameAs Pacific_DC_Intertie.
- Pacific_DC_Intertie sameAs m.03j586.
- Pacific_DC_Intertie sameAs Q2045524.
- Pacific_DC_Intertie sameAs Q2045524.
- Pacific_DC_Intertie sameAs Pacific_DC_Intertie.
- Pacific_DC_Intertie lat "45.594166666666666".
- Pacific_DC_Intertie long "-121.11416666666666".
- Pacific_DC_Intertie wasDerivedFrom Pacific_DC_Intertie?oldid=592586637.
- Pacific_DC_Intertie depiction Pacific_intertie_geographic_map.png.
- Pacific_DC_Intertie isPrimaryTopicOf Pacific_DC_Intertie.