California ISO has 80GW of solar and 148GW of storage in its queue, smashing last year’s figures

Facebook
Twitter
LinkedIn
Reddit
Email
CAISO has added 80GW of solar capacity to its queue, beating last year’s level of 68GW. Image: Blue Oak Energy.

The California Independent System Operator (CAISO) has almost 80GW of solar and 148GW of storage in its interconnection queue, according to a 7 July presentation.

The operator has 97.6GW of renewables in its queue, with solar PV accounting for approximately 80% of this, and wind making up most of the rest. Last year, CAISO has 68GW of solar capacity in its queue.

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

It has also substantially increased the level of energy storage capacity in its queue. This year, 147GW is yet to be added, with 97% of this coming from battery storage. It is more than double the storage in queue last year (69GW).

Overall, the queue contains more than 245GW of renewable and storage capacity, with 37% “in various stages of the study process and will finish November 2021”, according to the company presentation on grid interconnection.

This month, a report from the Breakthrough Institute found that falling wholesale prices for solar in California mean subsidies will likely be needed to sustain cost-effective deployment in the state.

Just before, Californian lawmakers voted down a proposed change to the state’s net metering rules that would have cut rates for rooftop solar customers.

Read Next

July 16, 2026
Zero-E has received 5.3.4A Connection Approval for the 145MWac Moranbah solar-plus-storage site in Queensland.
July 15, 2026
Avantus has signed a 20-year PPA with the Clean Power Alliance (CPA) in California for the output of a 200MW solar-plus-storage project.
July 14, 2026
New South Wales (NSW) energy agency EnergyCo has executed a Project Development Deed with transmission operator Transgrid to upgrade a section of the grid between Jerilderie and Wagga Wagga in Australia.
July 13, 2026
Independent power producer (IPP) Avantus has closed a US$525 million financing package for its Aratina 2 solar-plus-storage project in Southern California, US.
July 7, 2026
Swedish independent power producer (IPP) OX2 has acquired the Corop solar-plus-storage project in Victoria, Australia, adding a 230MWac solar PV power plant and up to 290MW/1,160MWh of battery energy storage to its Australian portfolio.
July 5, 2026
Australian retailer AGL Energy will deliver a 9.2MWp solar-plus-storage microgrid for Koompartu Farms in South Australia’s Riverland.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
April 20, 2027
Istanbul, Türkiye