SMA and RheinEnergie partner on Germany BESS projects (2025)

News

By Cameron Murray

Europe

Grid Scale, Connected Technologies, Distributed

Technology, Business

SMA and RheinEnergie partner on Germany BESS projects (1)

The system integration arm of SMA Solar and utility RheinEnergie have partnered to deploy BESS projects in Germany, with construction about to launch on the first.

The two companies will co-develop battery energy storage system (BESS) projects to be paired with renewable energy plants like wind and solar as well as standalone BESS projects, they said last week (25 March).

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

Subscribe to Premium

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Subscribe to Basic (FREE)

SMA Solar Technology subsidiary Altenso will head up development, construction and maintenance while RheinEnergie will take on operational management and trading of the systems once online.

They did not reveal any deployment target but said the first, 24.5MW/64MWh BESS is set to launch construction in the next few months. It will be in Northeim, Lower Saxony, and should be completed in early 2026.

SMA Solar has recently seen falling sales and profitability in its core business of inverters for the European solar market, as covered by our colleagues at PV Tech. Making a bigger move into battery storage system integration could help to offset this.

“We operate as a holistic solution provider specialising in the integration of complex energy systems and already have a successful track record on system solutions for BESS projects around the world with a total output of more than 1.5GW,” said Burkhard Söhngen, managing director at Altenso. “By teaming up with RheinEnergie, we now have an experienced partner who we can work with to deliver a key contribution to Germany’s renewable energy supply.”

Germany is seen as one of, if not the, most attractive energy storage markets in Europe, with an ambitious 200GW-plus 2030 solar target and a very deep wholesale energy market. However, its BESS development space appears highly saturated, with one owner-operator ‘green flexibility’ saying the market would now start ‘cooling’ off (Premium access) while sources at theEnergy Storage Summit EU 2025 in February said the grid connection backlog for BESS is even more stark than in the UK.

Across grid-scale, commercial & industrial (C&I) and residential segments, the country is already the largest market in Europe and looks set to solidify that position by 2030 according to recent data from research firm LCP Delta and trade body EASE.

Last week saw oil and gas major TotalEnergies reveal it is building 321MW of BESS projects in Germany.

Upcoming Event

3 June 2025

Stuttgart, Germany

Held alongside theBattery Show Expo Europein Stuttgart,Energy Storage Germanyspotlights Germany’s rapid ascent in the European storage sector. Once driven by residential demand, utility-scale projects are now surging, with 184 MW added across 44 projects in 2023. With nearly 16 GWh of capacity installed in the first half of 2024, Germany is set to integrate 24 GW of utility-scale energy storage by 2037, creating substantial opportunities.

Upcoming Event

14 October 2025

London, UK

The UK & Ireland is the most mature and established energy storage market in Europe, with just over 5GW of total operational capacity at the start of 2025. With over 130GW in the pipeline for the UK and Ireland, the growth potential of this market is immense.With this in mind, everyone is asking, ‘how best to maximise battery assets?’ This event has established itself as a key industry platform, bringing together asset owners with the experts who can provide the answers – from optimisers and software providers to O&M specialists and more. The summit will equip the industry for the future, delving into the key pillars of asset management, exploring operational challenges, and spotlighting the latest developments in optimisation and software innovation.

Upcoming Event

2 December 2025

Rome, Italy

Across two packed days, the Summit focused on three core themes: revenue & trading, the lifecycle of the battery, and optimisation tools. Attendees explored innovative strategies for enhancing asset performance and longevity, with a spotlight on key markets like Germany, Italy, and the UK. Stay tuned for details on the 2025 edition of the Battery Asset Management Summit Europe, where we’ll continue to chart the path forward for energy storage asset management.

Upcoming Event

24 February 2026

InterContinental London - The O2, London, UK

This isn’t just another summit – it’s our biggest and most exhilarating Summit yet! Picture this: immersive workshop spaces where ideas come to life, dedicated industry working groups igniting innovation, live podcasts sparking lively discussions, hard-hitting keynotes that will leave you inspired, and an abundance of networking opportunities that will take your connections to new heights!

EnergyStorageEurope, germany, sma, sma solar technology, utility

Read Next

Return, Alfen and Vattenfall partner on HV transmission-connected 200MWh Dutch BESS

April 25, 2025

Investor Return has started construction on a 100MW/200MWh BESS project in the Netherlands, with energy storage technology supplied by system integrator Alfen and power company Vattenfall enlisted as long-term offtaker.

Elinor and ElevenEs battery experts to speak at Solar Media’s Intersolar Europe panel

April 25, 2025

Solar Media will host a panel discussion on European manufacturing at this year’s Intersolar Europe event, at the company’s stand on 7 May.

Premium

BESS industry gears up for Italy market kick-off with first MACSE auction – but is 2030 target overly ambitious?

April 24, 2025

The grid-scale energy storage market in Italy holds much promise with very ambitious deployment targets for 2030, but it may be difficult for the industry to deliver on those targets.

Chile BESS deals totalling 4.2GWh for Atlas, Canadian Solar and Colbun, Metlen and Glenfarne

April 24, 2025

A trio of major announcements in the grid-scale BESS market in Chile, with Canadian Solar winning a delivery contract from Colbun, Metlen Energy & Metals selling a solar-plus-storage portfolio to Glenfarne, and Atlas Renewable Energy securing financing for a project.

BW ESS and Zelos targeting RTB on 1.5GW of Germany BESS in 2025-2027

April 22, 2025

Energy storage owner-operator BW ESS and Zelos Energy Developments have announced a 1.5GW pipeline of BESS projects in Germany, aiming for ready-to-build (RTB) status over the next two years.

Most Popular

American Clean Power report recommends energy storage-friendly market reforms to US grid operators

Sungrow and BYD progress huge BESS projects in Saudi Arabia and Chile

Fire safety: UL Solutions tests thermal runaway to new UL9540A standard, Prevalon and CLOU conduct TS-800 Large-Scale Fire Testing

Return, Alfen and Vattenfall partner on HV transmission-connected 200MWh Dutch BESS

Local opposition, not the new administration, is holding back US energy storage

Viridi Parente acquires mobile BESS production facility from bankrupt rival Moxion in California

Email Newsletter

SMA and RheinEnergie partner on Germany BESS projects (2025)

References

Top Articles
Latest Posts
Recommended Articles
Article information

Author: Edwin Metz

Last Updated:

Views: 5941

Rating: 4.8 / 5 (58 voted)

Reviews: 81% of readers found this page helpful

Author information

Name: Edwin Metz

Birthday: 1997-04-16

Address: 51593 Leanne Light, Kuphalmouth, DE 50012-5183

Phone: +639107620957

Job: Corporate Banking Technician

Hobby: Reading, scrapbook, role-playing games, Fishing, Fishing, Scuba diving, Beekeeping

Introduction: My name is Edwin Metz, I am a fair, energetic, helpful, brave, outstanding, nice, helpful person who loves writing and wants to share my knowledge and understanding with you.