Vattenfall launches 1.225 MWh battery pack

20 May 2020

Vattenfall and Northvolt has launched a new battery energy storage solution, Voltpack Mobile System. It is said to be a rugged, highly modular lithium-ion battery package envisioned as a zero-emission alternative to replace diesel generators in some applications. Vattenfall has supported the design of the system and will test and validate Voltpack Mobile System and its functionality prior to market introduction.

Voltpack Mobile System is intended as a modular power supply solution that can be configured to meet energy and power requirements of a wide variety of market scenarios. A single system delivers up to 250 kW with a scalable capacity from 245 to 1225 kWh of available energy. Voltpack Mobile System scales through a central interface hub, which can connect up to five self-contained battery units in parallel.

Prime applications include powering remote electricity grids, reinforcing weak grids, supporting electric vehicle charging and delivering grid services such as balancing power, flexibility, or other ancillary services.  

The system can be deployed for operations lasting days, weeks or even longer periods of time. This characteristic opens Voltpack Mobile System up to opportunities of leasing and is expected to significantly expand the system’s utility.  

Within the project, Northvolt has led development and production of core technologies, including battery and complementary inverter systems, and the battery management system. Final validation of the system will be undertaken at Vattenfall’s test and certification center in Älvkarleby, Sweden.



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