SunPower becomes latest PV provider to pilot storage in California

Facebook
Twitter
LinkedIn
Reddit
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.

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

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”. Again talking about the “near future”, chief executive officer Tom Werner said that battery storage would one day be used to store electricity for use at night.

Other residential solar companies including SolarCity have recently also been trialling similar programmes, with SolarCity director of grid integration Eric Carlson 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.

Read Next

Premium
August 21, 2026
Drawing on his experience of flood risk engineering, Hossein Gheovasi makes the case for early, accurate hydrology in solar project design.
August 21, 2026
US IPP Swift Current Energy has secured a US$750 million credit facility to support what it called “reliable, clean energy projects” in the US.
August 21, 2026
Vikram Solar plans a 9GW wafer and ingot plant at its recently inaugurated 6GW Tamil Nadu module facility.
Premium
August 21, 2026
ES Foundry's Alex Zhu outlines how the US cell maker is betting on PERC while navigating shifting regulations and supply-chain constraints.
Premium
August 21, 2026
PV Tech Premium speaks with United Solar about the challenges of building polysilicon capacity outside of China and catering to the US and Indian markets.
August 21, 2026
Daqo New Energy reduced its losses in Q2 2026 and increased its revenues, largely by resuming polysilicon sales below the cost of production.

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
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye