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SunZia Wind and Transmission

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Coordinates: 34°15′2″N 105°35′44″W / 34.25056°N 105.59556°W / 34.25056; -105.59556
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SunZia Wind
Map
CountryUnited States
LocationNew Mexico
Coordinates34°15′2″N 105°35′44″W / 34.25056°N 105.59556°W / 34.25056; -105.59556
StatusUnder construction
Construction began2023
Commission date2026 (planned)
Construction cost$11B
OwnerPattern Energy
Wind farm
TypeOnshore
Power generation
Make and modelGE & Vestas
Nameplate capacity3.5 GW[1]
External links
Websitepatternenergy.com/projects/sunzia/
[edit on Wikidata]

SunZia Wind is a 3.5-gigawatt wind farm being developed in New Mexico, United States, in Lincoln County, San Miguel County and Torrance County.[1] When completed, this will be the largest wind project in the western hemisphere.[2] The wind project is paired with SunZia Transmission, a 550-mile 3-gigawatt HVDC transmission line (890 km) to carry the power to Arizona and California. SunZia Wind and Transmission are owned by the privately held American company Pattern Energy. The project reached $11B of funding in late 2023. Construction started in 2023 and operation is projected to start in 2026.[2]

Wind farm

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The project includes at least 900 wind turbines[3][4] in Estancia Valley.

In 2023, Pattern Energy ordered 674 General Electric 3.6 MW turbines (2.4 GW)[5] and 242 Vestas V163-4.5 MW turbines (1.1 GW)[6] while foundations were being dug.

Transmission line

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The planned transmission 550-mile line (890 km) would connect the SunZia wind farm in central New Mexico to Pinal county in south-central Arizona. It would consist of two 525 kV high-voltage direct current (HVDC) transmission lines with a total capacity of 3,000 MW of electrical power.

History

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The SunZia transmission line was approved by the Arizona Corporation Commission in 2016, after a 10-year planning process. At the time, the line was planned to be AC, not DC. Environmentalists opposed the project, concerned about the line passing through the San Pedro River (Arizona) Valley and fearing that it might be used to transfer fossil-fuel generated electricity. The project was backed by a consortium of local power companies.[7]

In 2018, the New Mexico Public Regulation Commission rejected SunZia's transmission line project and requested that SunZia resubmit a more detailed application.[8][9][10] The New Mexico PRC later approved this project in December 2022.[11]

Pattern Energy purchased the rights to the Mesa Canyons Wind Farm from Clean Line Energy Partners in May 2018. The Mesa Canyons Wind Farm is a planned 1 GW wind farm just north of Corona.

Pattern Energy received unanimous approval October 5, 2018 by the New Mexico Public Regulation Commission for its wind farm project, which was then called Corona Wind Projects, along with the Western Spirit Wind Farm.[12] This combined with the Mesa Canyons Wind Farm gives the 3 GW of energy that is projected to be exported to the west via the SunZia power line.[12][13][14]

Pattern Energy bought the SunZia transmission line project from SouthWestern Power Group in July 2022.[15]

Pattern Energy signed a power purchase agreement with Shell and University of California in 2023.[16]

Groundbreaking for the transmission line was held in September 2023.[17] In November 2023, the Bureau of Land Management temporarily halted work on the project due to concerns of the Tohono O'odham Nation and the San Carlos Apache Tribe that the project damages religious and cultural sites in a 50-mile portion (80 km) of the San Pedro Valley in southwestern Arizona,[18] but lifted the suspension later that month, allowing work to resume.[19]

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A 2023 case in Arizona Superior Court asked that SunZia's amended Certificate of Environmental Compatibility (CEC) for Arizona be voided.[20] The plaintiff stated that the Arizona Corporation Commission (ACC) failed to adequately consider dramatic changes in the SunZia project when granting the amended Certificate. He pointed out that the project’s original CEC, granted in 2015, was based on the benefits to Arizona of a multipoint AC line. The amended CEC is for a point-to-point DC line, which would not provide similar benefits to the state. The case asked that SunZia’s amended CEC be voided and the decision be remanded to the Commission.[21][22] On August 25, 2023, the Superior Court affirmed the ACC's decision. The plaintiff appealed this decision to the Arizona Court of Appeals on October 25, 2023. His attorneys filed their opening brief on December 14, 2023.

A separate lawsuit was filed in U.S. District Court in Tucson, Arizona in January 2024.[23] The plaintiffs ask for a permanent injunction to halt construction of the transmission line through the San Pedro Valley because of the cultural significance of the valley to several native American communities.[24]

On January 30th, 2024, the Tohono O'odham Nation and San Carlos Apache Tribe filed a motion for a temporary restraining order and preliminary injunction to stop the construction, as well as a request for an expedited hearing for their lawsuit previously filed on January 17th.[25] A Motion Hearing was held March 13, 2024, in the United States District Court in Tucson, AZ.[26] The motion was denied in April.[27]

On March 25, 2024, twelve Arizona state legislators sent a letter to the Arizona Corporation Commission expressing their concerns about the SunZia Transmission Project through Arizona.[28] The legislators asked the Commission to review their previous actions and ensure that the concerns of Arizona ratepayers are adequately addressed.

References

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  1. ^ a b "SunZia Wind & Transmission Fact Sheet" (PDF). Retrieved June 10, 2024.
  2. ^ a b Bryan, Susan Montoya (January 9, 2024). "GE spinoff will build 674 turbines to power the SunZia wind farm, the Western Hemisphere's largest wind project". Fortune. Retrieved January 27, 2024.
  3. ^ Lewis, Michelle (May 4, 2023). "The US' largest clean energy infrastructure project is kicking off construction". Electrek. Retrieved May 9, 2023.
  4. ^ Joshua S Hill (October 5, 2018). "New Mexico Approves Pattern Energy's 2.2 Gigawatt Corona Wind Projects Plan". Clean Technica. Retrieved October 20, 2018.
  5. ^ "GE turbines to power 2.4 GW of SunZia project". Windpower Engineering & Development. January 9, 2024.
  6. ^ Lewis, Michelle (December 28, 2023). "The largest clean energy project in US history closes $11B, starts full construction". Electrek.
  7. ^ "Arizona regulators approve $2B SunZia power line over objections from greens". Utility Dive. February 5, 2016. Retrieved January 29, 2024.
  8. ^ SouthWestern Power Group (February 25, 2021). "SunZia Southwest Transmission Project, Annual Progress Report: 2021."  Western Electricity Coordinating Council (WECC) Retrieved June 13, 2023.
  9. ^ Gavin Bade (October 12, 2018). "Largest wind project in hemisphere approved for New Mexico, but transmission tie in limbo". Utility Dive. Retrieved October 20, 2018.
  10. ^ Hudson Sangree (October 10, 2018). "Tx Path Uncertain for Massive New Mexico Wind Farm". RTO Insider. Archived from the original on April 4, 2019. Retrieved December 19, 2018.
  11. ^ "Case 22-00257-UT, Application for Reliability Determination". Retrieved October 29, 2024.
  12. ^ a b Kevin Robinson-Avila (July 5, 2018). "Pattern Energy harnesses NM's blustery gusts". AlburquerqueJournal. Archived from the original on November 4, 2019. Retrieved December 5, 2018.
  13. ^ Corina Rivera Linares (May 24, 2018). "Pattern Development spokesperson: Western Spirit line, Mesa Canyons wind project on track to begin construction in 2019". Transmission Hub. Retrieved December 5, 2018.
  14. ^ Michelle Froese (May 21, 2018). "Pattern Development acquires Mesa Canyons Wind Farm and Western Spirit Transmission Line". Windpower Engineering and Development. Retrieved January 28, 2024.
  15. ^ "Pattern Energy buys 3-GW SunZia transmission project to deliver wind energy from New Mexico to Arizona". Utility Dive. July 18, 2022.
  16. ^ Jenkinson, Orlando. "Shell and University of California sign PPAs with 3.5GW SunZia wind farm". www.windpowermonthly.com.
  17. ^ Bryan, Susan Montoya (September 1, 2023). "Powered by wind, this $10B transmission line will carry more energy than the Hoover Dam". AP News. Retrieved September 1, 2023.
  18. ^ Susan Montoya Bryan, $10 billion renewable energy project paused over concerns for Native American historic sites, Associated Press (November 13, 2023).
  19. ^ Bryan, Susan Montoya (November 30, 2023). "Work resumes on $10B renewable energy transmission project despite tribal objections". AP News. Retrieved April 20, 2024.
  20. ^ "Civil Court Case Information - Case History". www.superiorcourt.maricopa.gov. Retrieved September 1, 2023.
  21. ^ Sawyer, Abigail (April 7, 2023). "Pattern Expects May Approval for SunZia Line, Despite Looming Arizona Lawsuit". NewsData, LLC. Retrieved September 1, 2023.
  22. ^ Else v. Arizona Corporation Commission. Arizona Superior Court, Case No.: CV2023-050310. Final Reply Brief, June 22, 2023. (Appeal pursuant to A.R.S. § 40-254, Preferential civil matter pursuant to A.R.S. § 40-255.) Assigned to: The Honorable Melissa Iyer Julian.[1]
  23. ^ "Complaint for Declaratory Judgement and Injunctive Relief". www.bloomberglaw.com. Retrieved February 4, 2024.
  24. ^ "Tribes, environmental groups ask US court to block $10B energy transmission project in Arizona". AP News. January 22, 2024. Retrieved January 27, 2024.
  25. ^ "Tohono O'odham Nation et al v. United States Department of Interior et al". www.bloomberglaw.com. Retrieved April 20, 2024.
  26. ^ "Tohono O'odham Nation et al v. United States Department of Interior et al". www.bloomberglaw.com. Retrieved April 20, 2024.
  27. ^ Bryan, Susan Montoya (April 17, 2024). "Judge throws out tribes' legal challenge to $10 billion power line running through 'one of the most intact, prehistoric and historical … landscapes in southern Arizona'". Fortune. Retrieved April 20, 2024.
  28. ^ "Letter from Arizona legislators to Arizona Corporation Commission" (PDF). Arizona Corporation Commission. Retrieved March 28, 2024.
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