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Envision Energy and ju:niz Energy are expanding their partnership with the 442 MWh Smareg 13 (Vöhringen II) battery energy storage system (BESS) in Bavaria, Germany. According to ju:niz Energy’s announcement of 9 November 2026, Smareg 13 is the third project the two companies are realising together, taking the total volume of their cooperation to nearly 600 MWh.
Gen 8 platform with four-hour duration
The project will use Envision’s Gen 8 BESS platform, which, according to the announcement, combines four-hour energy storage, advanced battery technology and grid-forming capability. Its low-noise design is intended to address one of the main constraints at the Smareg 13 site, where noise sensitivity is an issue, without limiting operation.
Developer-owner-operator model
ju:niz Energy is responsible for developing, financing and building Smareg 13 and will operate the system over the long term. The site lies next to the operational Smareg 12 facility and forms part of ju:niz Energy’s growing German BESS portfolio. The companies expect the project to add flexibility and balancing capacity in Bavaria as Germany integrates a rising share of renewable generation.
Scaling up before earlier deliveries are complete
Henry Peng, Senior Vice President of Envision Energy and President of its EU and LATAM regions, said moving ahead with a significantly larger project before the first two have completed delivery demonstrates Envision’s role as a long-term technology partner. Vural Oezcan, COO of ju:niz Energy, said the project pairs an advanced stage of development with four-hour storage and will make an important contribution to flexibility and system stability.
Sources
- ju:niz Energy, “Envision Energy and ju:niz Energy Expand Partnership with 442 MWh BESS Project to Strengthen Germany’s Future Energy System”, 09.11.2026: juniz.com
Image: ju:niz Energy
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