CAISO takes control of Arizona-California transmission link

June 17, 2024
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.

21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

October 17, 2025
Norwegian renewable energy firm Scatec has signed lease agreements for 64MW of solar PV and 10MWh of energy storage capacity in Liberia and Sierra Leone.
October 17, 2025
A group of over 20 US states are suing the Trump administration for the cancellation of the US$7 billion Solar For All Scheme.
October 16, 2025
Masdar and Turkey have entered the final stage of US$1 billion agreement to develop the 1.1GW plant in Bor, Niğde Province, central Turkey.
October 16, 2025
US utility-scale solar additions grew by 56% in 2024, reaching 30GW from 2023’s 19GW and representing over 54% of all new electricity generation capacity added in the country last year.
October 16, 2025
Jakson Green and Blueleaf Energy have reached financial close for the 840MWp Bikaner solar projects in Rajasthan, western India. 
October 16, 2025
Off-grid solar company Sun King has revealed plans to set up manufacturing operations in Kenya and Nigeria.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK