RWE turns solar-plus-storage projects online at mines in Germany

September 5, 2023
LinkedIn
Twitter
Reddit
Facebook
Email

Germany-based multinational energy firm RWE has put two solar-plus-storage projects in the Rhenish mining region into commercial operation, with a total of 21MWh of energy storage capacity.

The company said both projects comprise more than 58,000 bi-facial solar PV modules. The Garzweiler solar PV plant boasts a capacity of 19.4MWp and a 6.5MW/13 MWh BESS. The second project, called Jackerath, totals 12.1MWp of solar PV and 4.1MW/8.1 MWh of BESS and is located at the western edge of the mine.

“The two locations have a combined area of approximately 38 football fields. This shows it is not only our large-scale recultivation areas that offer plenty of space for renewables but also opencast mine areas that are still in operation. We plan to use these to ensure the region continues to be an energy producer into the future,” said Lars Kulik, CTO Lignite at RWE Power.

The Garzweiler project is set up directly below the Königshovener Höhe Wind Farm operated by the German city of Bedburg and RWE. The company announced the construction of the project in November 2022, as reported by Energy-Storage.news.

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

RWE added that there are four solar PV projects and battery storage systems in opencast mines already under construction or in operation in its portfolio. The Inden opencast mine, which has been operational since 2022, consists of a 14.4MWp solar PV plant and a battery storage system with a capacity of 4.8MW/9.6 MWh. At the Hambach opencast mine, the 12.2MWp RWE Neuland solar farm and its 4.1MW/8.1 MWh battery storage system are under construction.

The company is aiming for 500MW of renewable energy capacity in the Rhenish lignite mining area by 2030.

Solar-plus-storage projects in Germany are eligible for additional premiums per kWh of energy discharged from the BESS under the country’s Innovation Tenders, although this was not mentioned in RWE’s announcement.

This article was originally posted on our sister site PV Tech.

15 September 2026
Berlin, Germany
Launching September 2026 in Berlin, Energy Storage Summit Germany is a new standalone event dedicated to Germany’s energy storage market. Bringing together investors, developers, policymakers, TSOs, manufacturers and optimisation specialists, the Summit explores the regulatory shifts, revenue models, financing strategies and technology innovations shaping large-scale deployment. With Germany targeting 80% renewables by 2030, it offers a focused platform to connect with the decision-makers driving the Energiewende and the future of utility-scale storage.

Read Next

February 11, 2026
Germany’s BESS market is booming but is still far behind what it is needed for its energy transition. 2026 will be a key year in this regard with several key regulatory questions potentially clarified, writes energy transition comms executive Frederik König.
February 10, 2026
A busy week of grid-scale BESS project news from Germany, with numerous development, project, optimisation and tolling partnerships announced.
February 9, 2026
Chinese battery manufacturer EVE Energy has secured a contract with the Malaysian government to deploy an AC/DC integrated 36MWh solar-plus-storage system at Kuala Lumpur International Airport (KLIA).
February 4, 2026
“Standalone solar is not dead, but it is challenging,” said Pierre Bartholin, head of power hedging at investor Nuveen Infrastructure, opening the debate at Solar Media’s Solar Finance Investment Europe (SFIE) conference in London on the future of co-located battery storage. 
February 3, 2026
Power firm Uniper has entered into a conditional supply contract with organic solid flow battery company CMBlu Energy for the delivery of at least 5GWh of its technology.