Energy Acuity is the leading provider of power generation and power delivery market intelligence. Below are the Top 10 Transmission Projects viewed on Energy Acuity’s grid platform over the past 6 months.
Source: Energy Acuity Grid Platform
This project is jointly proposed by Idaho Power and Rocky Mountain Power to build and operate approximately 1,150 miles of new high-voltage transmission lines between the planned Windstar Substation near Glenrock, Wyoming and the planned Hemingway Substation near Melba, Idaho. The project would include approximately 300 miles of 230 kilovolt (kV) lines in Wyoming and approximately 850 miles of 500 kV lines in Wyoming and Idaho. This project will help supply energy to customers and improve electric system reliability by enabling delivery of electricity from existing and new generating resources, including renewable resources such as wind.
Tetra Tech is managing or conducting corridor and routing studies, detailed environmental studies, third-party Environmental Impact Statement (EIS) preparation, and permitting for the project.
The Southline Transmission Project is a proposed transmission line designed to connect and transmit electricity across southern Arizona and southern New Mexico. It is intended to ease existing system congestion, strengthen local electric system reliability, and improve transmission access for local renewable and other energy sources.
Developer: Hunt Power
The Mark Twain project in Missouri, preliminarily estimated to cost $230 million, will span 89 miles in Missouri of new 345-kilovolt transmission line from the Iowa border to Adair, Mo., on to Palmyra, Mo. Key benefits include enhanced ability to import power from the upper Midwest and delivery and integration of renewable generation.
This project is proposed by SunZia Transmission, LLC. The company plans to construct and operate up to two 500 kilovolt (kV) transmission lines originating at a new substation in either Socorro County or Lincoln County in the vicinity of Bingham or Ancho, New Mexico and terminating at the Pinal Central Substation in Pinal County near Coolidge, Arizona.
The purpose of the proposed project is to transport electricity generated by power generation resources, including primarily renewable resources, to western power markets and load centers. The SunZia project would enable the development of renewable energy resources including wind, solar, and geothermal generation by creating access to the interstate power grid in the Southwest.
The proposed transmission line route would be approximately 460 miles in length. The proposed route and alternatives would cross approximately 45 miles of BLM lands in Arizona and 170 miles in New Mexico, along with state and private lands.
The Northern Pass transmission project involves the construction of a direct current (DC) transmission line that will link Hydro-Québec’s hydroelectric system with New England’s electricity grid. The line will carry up to 1,200 megawatts of power enough clean energy to supply over one million homes.
Along with the construction of the DC line, the project will include the construction of a converter terminal in New Hampshire to convert the electricity from direct current (DC) to alternating current (AC), as well as the construction of a new AC transmission line to deliver the electricity to consumers throughout New England.
Central Maine Power Co. submitted a plan to build a high-voltage transmission line through western Maine to bring large amounts of hydroelectricity from Quebec to Massachusetts. The 145-mile line would follow a corridor owned by CMP from Beattie Township, on the Canadian border north of Route 27 and Coburn Gore, through Farmington and Jay to Lewiston, where it would connect to the regional electric grid.
Developer: Central Maine Power Co.
The TransWest Express Transmission Project is an extra-high-voltage direct-current electric transmission system. The general route will begin in south-central Wyoming, extend through northwestern Colorado and central Utah, turn southwest into southern Nevada, and end near Las Vegas. The TWE Project will reliably and cost-effectively deliver renewable energy produced in Wyoming to the Desert Southwest region (Arizona, California, Nevada), ultimately helping contribute to a cleaner, greener world while providing much-needed electricity to thousands of homes and businesses every year. Under development since 2005, the transmission line is anticipated to begin construction in 2013.
In order to connect the proposed Wind Catcher facility, AEP Transmission is proposing to build a 350 mile, 765 kV transmission line to deliver power from the Oklahoma Panhandle to Tulsa.
Developer: AEP Transmission
The FWTP consists of a 345kV line from Odessa to Moss to Permian Basin to Barrilla Junction to Fort Stockton to Rio Pecos to Bakersfield; with the initial installation of 345kV/138kV autotransformers at Riverton, Solstice and Lynx stations. The estimated total cost of the project is $423 million with an in-service date of 2022 or sooner. It also provides for long-term growth in the region by allowing for the future addition of a second 345kV circuit and additional autotransformer installations.
NPPD plans to construct a 345,000-volt transmission line from NPPD’s Gerald Gentleman Station near Sutherland north to the Cherry County area and then east to the Holt/Antelope County line where it will tie into a 345,000-volt transmission line owned by the Western Area Power Administration.
Referred to as the R-Project, the approximately 220-mile-long line will help enhance the operation of NPPD’s electric transmission system, relieve congestion from existing lines within the transmission system, and provide additional opportunities for development of renewable energy projects
Developer: Nebraska Public Power District (NPPD)
Source: Energy Acuity Grid Platform
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