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

June 1, 2026
EDF power solutions North America has signed a 30-year PPA to sell power generated at the 400MW Utah Solar 1 Energy project to the LADWP.
May 20, 2026
The California Independent System Operator (CAISO) Board of Governors has approved the ISO’s 2025-2026 transmission plan, which accommodates 45 GW of new solar PV.
May 20, 2026
Edify Energy has reached financial close on the 720MWp Smoky Creek and Guthrie's Gap solar power stations in Central Queensland, Australia.
May 18, 2026
US real estate company CIM Group has launched an energy platform with a 2GW portfolio of solar PV and battery energy storage system (BESS) assets.
April 28, 2026
The California Energy Commission (CEC) has approved the development of the 300MW/1200MWh Soda Mountain solar project in San Bernardino County, California.
April 22, 2026
Independent power producer Lydian Energy has acquired a 1.5GW solar PV and battery energy storage system (BESS) portfolio in North America.

Upcoming Events

Solar Media Events
June 16, 2026
Napa, USA
Media Partners, Solar Media Events
June 30, 2026
Sacramento, California
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil
Media Partners, Solar Media Events
September 1, 2026
Mexico City, Mexico
Media Partners, Solar Media Events
September 9, 2026