A state-of-the-art energy storage system product line

Quantum energy storage systems

Helping customers transition to net-zero while ensuring a reliable and balanced power system.

By design, the Quantum products solve many fundamental safety challenges such as power generation capacity management, fire detection, short circuit handling, and interconnection communication.

Wärtsilä Energy Storage & Optimisation has a strong safety record across its energy storage systems globally, compliant with industry safety standards and strong industry partnerships.


Quantum differentiation chart

Latest addition: Quantum2

Quantum2 is a high-capacity energy storage system designed to meet utility-scale facilities’ most demanding power needs

Quantum2’s comprehensive design prioritises safety and optimises thermal management to maximise system performance.

No project is the same, and Quantum2 has the capability of integrating additional features to fit the specific needs of your project.

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Optimising large-scale energy storage facilities

Quantum2 enables project developers to meet capacity requirements more efficiently and effectively with a streamlined footprint, improved transportation and deployment speed, and unparalleled safety.

Rendering of Wärtsilä's Quantum High Energy

Quantum High Energy

Designed for ease of deployment and sustainable energy optimisation

Key benefits: 

  • Lowest lifecycle cost
  • Smallest system footprint given the selected system configuration
  • Shortest overall deployment time (equipment + transport + installation + commissioning)
  • Minimised scope and complexity of installation
  • Enhanced fire safety and explosion features




Optimised for flexibility, functionality and safety

Quantum comprises the following main parts:

  • Battery enclosure with pre-installed liquid cooled battery racks and all sub-systems such as HVAC
  • AC and DC outdoor rated cabinet, which interfaces battery strings with the inverter and provides an interface for auxiliary power and communications
  • Interconnection busbars and cables

Quantum solves many fundamental safety challenges

Quantum is one of the first energy storage systems to qualify under the 2023 revision of NFPA 855 and is also compliant with NFPA 69 as well as both UL 9540 and UL 9540A requirements.