sonnen-Engie partner up in France to sell solar-plus-storage through ‘shared vision’

LinkedIn
Twitter
Reddit
Facebook
Email
Image: Engie.

French utility Engie and German energy storage firm sonnen have signed a strategtic partnership to offer a package of solar and energy storage to households in France.

The ‘My Power’ package is already available and Engie has identified 3 million customers in France living in detached houses that are conducive to using the solar-storage combination. Moreover, customers in southern France could power close to 100% (up to 95%) of their electricity needs through the package in the summer months between May and September, with northern customers able to generate around two thirds of their power demand. Sonnen spokesman Mathias Bloch emailed Energy-Storage.News this week to confirm reports of the deal which had appeared in various news outlets.

Sonnen’s chief executive Christoph Ostermann told Reuters: “Engie has tested the systems and is now going into this market. Together, we would like to become a dominant player in French home solar batteries within two to three years.”

“We are very happy that one of Europe’s largest utilities shares our vision of clean and affordable energy. ENGIE is a company that not only talks about renewable energy but really pushes it forward. The French storage market is at the very beginning and therefore offers enormous potential,” Ostermann added in a separate statement emailed to this site.

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

“This shows that more and more people around the world want to take their energy future into their own hands and thus want to use our technology”.

The addition of storage will allow customers to become even more independent, having seen retail power prices rise around 20% over the last five years as the country’s nuclear reactors have aged.

Engie and sonnen hope to emulate the success of the package model in the Italian and German markets. Sonnen is one of the clear leaders in residential energy storage systems, having also launched in territories including the UK and the US and sold over 16,000 systems in its German homeland. The company just also announced the appointment of Ani Backa, an expert in energy and law, as its new U.S. director of regulatory strategy and utility initiatives.

Engie meanwhile has been on a wave of activity in energy storage and what could loosely be termed smart energy systems. After acquiring US commercial and industrial (C&I) provider Green Charge, French microgrid specialist Electro Power Systems and other ventures, Engie wrapped many of the acquisitions into the parent brand, including renaming Green Charge as Engie Storage N America. In other notable recent developments, Simply Energy, the Australian retail arm for Engie, said in late March that it will aggregate 6MW of Tesla household batteries together with 2MW of demand response at commercial premises in Adelaide in a virtual power plant project supported by the government-backed Australian Renewable Energy Agency (ARENA).

Additional reporting by Andy Colthorpe

Read Next

August 17, 2026
A new report from climate consultancy Ember highlights the important relationship between energy storage and solar, unlocking the “era of anytime solar.”
August 17, 2026
Independent power producer (IPP) Econergy has signed financing agreements for its Părău 2 solar and energy storage project in Brașov County, Romania.
August 12, 2026
Spanish renewables developer Acciona Energía has unveiled plans to install two battery energy storage systems (BESS).
August 12, 2026
Operators anticipate bringing an additional 54GW of battery storage capacity online over the next two and half years, according to the US Energy Information Administration (EIA).
August 11, 2026
Danish investment firm Copenhagen Infrastructure Partners (CIP) has reached financial close of the La Esperanza Solar energy storage-plus-solar PV project in the state of Campeche on Mexico’s Yucatán Peninsula.