California community choice aggregator Sonoma Clean Power signs solar-plus-storage PPA

LinkedIn
Twitter
Reddit
Facebook
Email

California community choice aggregator (CCA) Sonoma Clean Power has signed a power purchase agreement (PPA) with financing company Luminia for a co-located project with 32MWh of energy storage.

Sonoma Clean Power (SCP) has signed the deal with Luminia for the development of the 75-acre project which pairs 11.6MW solar PV farm and 8MW/32MWh battery energy storage system (BESS) in Sonoma, northern California. Construction is expected to start in the second half of 2023, for which the late stage development is being managed by Luminia and Kenwood Investments.

CCAs are a type of utility founded to allow electricity consumers to select which generation sources their power comes from while still using the transmission and distribution (T&D) networks of California’s main investor-owned utilities. Many have clean power mandates and PPAs signed by such groups have been a part of the growth story of renewable and storage resources in the state in recent years. Read more about them here.

Upon completion, SCP will dispatch the energy from the co-located site to its EverGreen premium service customers in Sonoma and adjoining Mendocino counties. EverGreen is SCP’s renewables-only electricity service, the only truly 24/7 renewable generation service in the US, it claims. It uses solar and geothermal resources from the two counties and the service requires a $0.025/kWh premium which works out to $13 extra a month on average.

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

Deb Emerson, managing director of procurement for SCP said: “With this solar and storage project we can provide renewable energy on-demand, regardless of the time of day, and promote 100 percent carbon-free energy generated right here in Sonoma County.”

The PPA followed a request for proposals (RFP) in June 2021 by SCP, followed by an exclusivity agreement for the project with Luminia four months later. The finished project will tie into a nearby electrical substation.

3 November 2026
Málaga, Spain
Understanding technology and supplier selection for Europe’s utility-scale PV market in 2027. PV ModuleTech Europe 2026 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of PV module, inverter and battery supplier selection; product availability, technology offerings, supply chain traceability, quality assurance, factory auditing, system reliability, and supplier bankability.

Read Next

September 7, 2026
Tech giant Google, Tesla, utility Pacific Gas and Electric (PG&E), and distributed energy resource (DER)-focused company Sunrun are launching a new virtual power plant (VPP) in California, US.
September 7, 2026
Pakistan’s National Electric Power Regulatory Authority (NEPRA) has approved plans to require bidders in a renewable energy auction to include energy storage.
September 7, 2026
Blueleaf Energy and Universal Peak have closed financing for a 100MW/400MWh battery storage project, which was one of four winning bids in a Malaysian government tender.
September 3, 2026
Power firm Engie and IPP Grenergy are advancing three solar-plus-BESS projects in Chile.
September 3, 2026
Bulgaria now has a world-leading amount of battery storage capacity relative to energy system despite a period of political turnover, although those assets are now cannibalising the revenues which attracted investment in the first place.