Western interconnection
The Western Interconnection (WI) is the name for the electrical network ( English Interconnection ), which includes the western states of the USA, the two adjacent provinces of Canada and a small part of northern Mexico. There are four interconnected networks in the USA and Canada, all of which operate with the same network frequency of 60 Hz . However, they are not synchronized with each other and therefore cannot be switched together directly. Electrical energy exchange between the interconnections takes place through high-voltage direct current transmission (HVDC) or through HVDC short couplings .
The two largest interconnected networks are the Eastern Interconnection and the Western Interconnection; they are transnational and encompass most of the United States and Canada. The Western Interconnection is connected to the Eastern Interconnection by six HVDCs in the US and one HVDC in Canada. In addition, there are also the Texas Interconnection and the Québec Interconnection as smaller interconnected networks . The latter is identical to the Hydro-Québec transmission network .
area
The WI covers the Canadian provinces of Alberta and British Columbia as well as the US states of Arizona , Colorado , Idaho , California , Nevada , Oregon , Utah , Washington and Wyoming . Most of the states of Montana and New Mexico , smaller parts of Texas and South Dakota, and the northern part of the Mexican state of Baja California also belong to the WI.
Transmission lines
Owners of the transmission lines within the WI are private electricity suppliers such as B. Pacific Gas and Electric or Southern California Edison , but also state-owned companies like the Bonneville Power Administration and the Western Area Power Administration (WAPA), both of which are part of the United States Department of Energy . The WAPA include z. B. more than 10% of the transmission lines within the BISE. In addition to high and extra high voltage lines for three-phase current, HVDC transmission systems such as the Pacific DC Intertie are also part of the WI.
coordination
The coordination for the WI network lies with the Western Electricity Coordinating Council (WECC). In addition, there are various units that are responsible for planning and operating a regional power grid within the WI. These include B .:
- AESO , responsible for planning and operating the power grid in Alberta.
- CAISO , responsible for operating the electrical grid in much of California.
Individual evidence
- ^ A b Functions - Transmission Roles. (No longer available online.) WAPA, archived from the original on June 9, 2015 ; accessed on June 2, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ NERC Interconnections. (No longer available online.) North American Electric Reliability Corporation (NERC), archived from the original August 11, 2014 ; accessed on June 2, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Regions and Balancing Authorities. NERC, accessed June 2, 2015 .
- ↑ About Western. (No longer available online.) Western Area Power Administration (WAPA), archived from the original on May 9, 2015 ; accessed on June 2, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Power Marketing Administrations. (No longer available online.) WAPA, archived from the original on June 14, 2015 ; accessed on June 2, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ WECC - Overview of WECC and Regulatory Structure. Western Electricity Coordinating Council (WECC), accessed June 2, 2015 .
- ^ Western Initiatives. (PDF 992 KB, p. 3 (2)) (No longer available online.) WAPA, archived from the original on March 15, 2013 ; accessed on June 9, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ About AESO. Alberta Electric System Operator (AESO), accessed June 13, 2015 .
- ↑ Understanding the ISO. California Independent System Operator (CAISO), accessed June 13, 2015 .
