Tesvolt, a prominent supplier of commercial and industrial energy storage solutions in Germany and Europe, is reporting the largest order in its company history to date. The 65 MWh capacity battery storage park where its battery products will be deployed is to be located near the city of Worms in Germany’s Rhineland-Palatinate. The park will be operated jointly by the local energy supplier EWR AG, the PV and storage project developer W POWER, and the construction project developer Timbra. Tesvolt is supporting the project development, supplying and installing the large-scale storage system, and will take over service and maintenance for the storage. Tesvolt is currently commissioning further storage power plants with a capacity of more than 40 MWh in Germany and Sweden.

Andreas Wirth, MD of W Power, commented: “[Storage] is crucial for grid stability to harmonise electricity supply and demand [and it] is currently particularly interesting to trade in electricity reserves. The more efficient and durable the battery storage systems are, the more profitable the operation of a storage power plant will ultimately be.”

To achieve good profitability over the entire lifespan, Tesvolt relies on high-quality battery cells from Samsung SDI. The lithium NCA cells installed in the large-scale storage systems have a higher energy density and an above-average efficiency compared to the usual LFP cells. 

“NCA cells can utilise up to 100 % of the installed energy, which is often not the case with other cell technologies,” stated Philipp Schreiber, technical project manager at Tesvolt. The lifespan after full cycles is also said to be higher. “In energy trading, NCA technology allows a higher depth of discharge to be used and the storage system can generate revenue over a longer period of time due to the increased lifespan.”

Additionally, says its maker, in the Tesvolt system an active fire protection system detects overheating at the cell level and automatically stops it by injecting fire extinguishing agent. The fire protection system is certified according to the U.S. standards UL 1973 and UL 9540A as well as the European standard IEC-62933-5-1/2.