Envision, ju:niz Expand Partnership With 442-MWh Battery in Bavaria

• Envision Energy and ju:niz Energy are expanding their partnership with the 442-MWh Smareg 13 battery project in Bavaria.
• Smareg 13 will use Envision's four-hour, grid-forming Gen 8 platform and is the partners' third project, taking their volume to nearly 600 MWh.
• The companies gave no power rating, construction start or commissioning date; ju:niz will finance, realize and operate the system.

Envision Energy and ju:niz Energy are expanding their partnership with Smareg 13, a 442-MWh battery energy storage project in Bavaria. The companies announced the plan in a statement on Nov. 9. The site, also called Vöhringen II, will use the Gen 8 platform of Envision.

The platform combines four-hour duration with grid-forming capability. Noise is one of the main challenges at this site. The companies said the low-noise design allows operation in acoustically sensitive locations. ju:niz is responsible for development, financing and realization, and will operate the battery over the long term.

The site is next to Smareg 12, an operating lithium iron phosphate battery in Vöhringen. That unit has about 20 MW and 40 MWh usable at the grid connection point, according to its legal adviser Osborne Clarke. Smareg 13 would hold about 11 times that energy, by list.solar's calculation.

The project in numbers

• 442 MWh of storage capacity planned at Smareg 13.
• 4 hours of storage duration on the Gen 8 platform.
• 110.5 MW of implied power, from 442 MWh divided by 4 hours (list.solar calculation); the companies did not state a MW figure.
• 582.6 MWh across the three named projects, which the companies describe as "nearly 600 MWh" (list.solar calculation).
• 76% of that combined volume is Smareg 13 (list.solar calculation).
• About 3.8 GWh of large-scale batteries added in Germany in January-September 2026, more than four times a year earlier, BSW-Solar said, citing Bundesnetzagentur data.
• 12% is Smareg 13's capacity as a share of those nine months of additions (list.solar calculation).

The earlier two projects were announced in July. One is an 88.4-MWh site in Baindt in southern Germany, the other a 52.2-MWh site in Schöningen in the north. Delivery on both is not yet complete, according to Envision.

"Moving forward with a significantly larger project before our first two projects have completed delivery demonstrates Envision's role as a trusted long-term technology partner," Henry Peng, president of Envision's EU and Latin America regions, said in the statement.

Vural Oezcan, chief operating officer at ju:niz, said: "The project combines a very advanced development status with four-hour storage technology and will make an important contribution to flexibility and system stability."

The companies have not published a power rating, contract value, construction start or commissioning date for Smareg 13.