SunPower pilots storage in California

LinkedIn
Twitter
Reddit
Facebook
Email

SunPower Corporation has become the latest US solar provider to pilot the deployment of residential storage systems in California by extending the terms of an existing partnership with homebuilding company KB Homes to include storage.

SunPower currently offers solar panel leasing to residents of 150 KB Homes-built communities – an undisclosed number of energy storage systems with built-in energy use monitoring will also be offered under the California pilot programme.

Initially, the storage systems will allow users to maintain power supplies in a power cut or power outage as well as allowing the residents to control their power use.

Publicity materials circulated by SunPower hinted that the company was seeking to offer storage that could be used more extensively, claiming “in the near future, the energy storage category is expected to experience substantial growth while adding additional benefits like home energy management”.

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

Chief executive officer Tom Werner said: “With energy storage capability, homeowners with solar power systems and home system monitoring today can control their electricity costs and have the security of knowing they’ll have power during an outage. In the near future, battery storage will help homeowners manage energy loads using stored power, including charging electric vehicles at night.”

Other residential solar companies including SolarCity have recently also been trialling similar programmes, with SolarCity director of grid integration telling PV Tech at the beginning of the year that his company sees storage as the “inevitable” next step for solar.

Chief executive officer Tom Werner reaffirmed that SunPower was testing storage solutions in Australia and Germany, having originally begun research into storage-plus-solar in 2010. That pilot was widely reported to have been put on the backburner with the announcement of the company’s foray into Australia marking SunPower’s return to the field.

The pilot programme will initially give users the ability to store power for use in an outage, with further developments expected in the “near future”. All images: SunPower facebook page.

Read Next

May 27, 2026
The California Energy Commission (CEC) has approved a 400MW/3,200MWh grid-scale battery storage project through the state planning agency’s Opt-In Certification Program.
May 26, 2026
Mining giant Fortescue has commenced construction on a 650MWh battery energy storage system at Cloudbreak in Western Australia’s Pilbara region, alongside the 690MW Turner River solar PV power plant.
May 25, 2026
The US installed 9.7GWh of new battery energy storage system (BESS) capacity, according to the US trade association group, the Solar Energy Industries Association (SEIA).
May 21, 2026
In this US news roundup, OCI Energy, MN8 Energy, GridStor, and Grenergy advance battery energy storage system (BESS) projects in Texas, California, Colorado, and Georgia.
May 20, 2026
Independent power producer (IPP) Sunraycer Renewables has closed a US$901 million project financing facility, supporting three solar-plus-storage projects in Texas, US.