CAISO takes control of Arizona-California transmission link

Facebook
Twitter
LinkedIn
Reddit
Email
Over 7GW of renewables projects are applying to connect to the transmission grid via the project. Image: Shutterstock.

The California Independent System Operator (CAISO) has taken control of a 500kV, 125-mile transmission line between California and Arizona.

The Ten West Link project was developed by Connecticut-based private equity investment firm Lotus Infrastructure Partners’ joint venture DCR Transmission. The project aims to connect 3.2GW of renewables throughout California and the south-west US, and became operational on 12 June 2024.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Currently, more than 7GW of renewables projects are applying to connect to the transmission grid via the project. Lotus Infrastructure Partners added that the transmission line expects the project to improve electric grid efficiency and reliability.

Construction of this transmission line, between Tonopah, Arizona and Blythe, California, began in January 2023. The Department of the Interior previously said that the construction highlighted the need for the transmission line to accommodate significant solar PV and solar-plus-storage capacity additions.

“This infrastructure project will unlock thousands of megawatts of renewable resources while improving the reliability of the bulk transmission grid. We are pleased to bring this project to fruition for the CAISO and ratepayers across the region,” said Himanshu Saxena, CEO of Lotus Infrastructure Partners.

Read Next

October 9, 2026
India’s MNRE issued the 12th revision of its Approved List of Models and Manufacturers (ALMM) List-II for solar PV cells on 8 October 2026.
October 9, 2026
The IPP has begun the build phase of a new 420MW hybrid renewable energy park in Mohave County, Arizona, with completion due in 2028.
October 9, 2026
Dos Grados has agreed to acquire three PV solar projects in Spain from Akuo, with a combined installed capacity of more than 500MW.
October 9, 2026
LGI, an Australian landfill gas and renewables company, has agreed to buy two operating solar PV power plants in Queensland.
October 8, 2026
Tata Power has partnered with Norway’s Ocean Sun to test membrane-based floating solar technology at its Maharashtra reservoir.
October 8, 2026
SolarPower Europe expects the EU solar workforce to fall 12% by 2030 as deployment growth stalls, according to a new report.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events, Upcoming Webinars
October 21, 2026
2pm AEDT
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland