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

Sponsored
June 24, 2026
LONGi's Louis Liu discusses the company's evolution from module supplier into an integrated clean energy systems partner.
June 22, 2026
Energy platform Permanent Power Company has secured US$600 million in construction financing for a solar-plus-storage project in California, US.
June 17, 2026
Foresight Group-backed developer NZ Clean Energy (NZCE) and Fonterra have signed a long-term virtual power purchase agreement (PPA) under which the dairy cooperative will purchase electricity generated by NZCE's Darfield solar-plus-storage project in Canterbury.
June 16, 2026
Brisbane-based developer Renewable Energy Partners (REP) has expanded the Bogunda Energy Hub to include solar PV and battery energy storage, with the project now formally in early-stage development south of Hughenden in Queensland, Australia.
June 15, 2026
CPUC has finalised details of its community solar, which has been dismissed as 'unworkable and destined for continued failure' by CLASS.
June 9, 2026
Ark Energy has been granted approval by AEMO and Transgrid to connect its 435MW Richmond Valley solar-plus-storage project to the NEM.

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