Brand New

Voltfang 3 Plus

Large-scale battery storage for market and grid applications

Capacity starting from

5.3 MWh

Power starting from

2.5 MW

Your energy. Our large-scale battery storage system.

Our large-scale storage systems are the ideal solution for anyone who needs powerful and flexible storage. Whether for large energy infrastructures or industrial applications – our storage systems offer capacity, flexibility and reliability.

Our modular systems can be individually adapted and offer you maximum efficiency and cost benefits. With our expertise in the grid-scale sector, we are setting new standards in the stability and efficiency of energy supply.

We offer landowners the opportunity to integrate these storage systems into economically attractive projects and make optimum use of their property.

Our clear advantages for our large battery storage system

End-to-end
solution
A central point of contact from start to finish
Financial viability
Support with bank commitments and structuring of financing - including leasing option on request.
Seamless
integration
For smooth integration into existing energy management systems
Simple
Scalability
Performance, runtime and setup can be individually adapted to your requirements and locations

Built in Aachen. Made for Alsdorf.

Voltfang launches construction of a grid-serving large-scale battery storage system in North Rhine-Westphalia – directly connected to the substation and proudly ‘Made in Germany’. With a storage capacity of 20 MWh and an output of 10 MW, the project sets new standards for a stable, renewable energy future in Germany.

All important data
at a glance

Our technical data sheet contains detailed information on our large battery storage system to help you make the right decision. However, if you have any specific questions or require further information, please do not hesitate to contact us.

Technical data
Capacity
from 5.3 MWh
Performance
from 2.5 MW
Energy supply
3-Phase
Linkage
AC coupled
Dimensions
20 ft container
Protection classification
IP 55
Operating temperature range
-35 to 55°C
Norms and standards: Voltfang 3 Plus DC block
UN38.3; UL1973; IEC62619; UL9540A Container UL1973; NFPA855; UL9540A; UL9540; IEC 62477; IEC 62619; IEC 62933-5-2; IEC 63056; IEC 61000-6-2 / IEC 61000-6-4
Norms and standards: Voltfang 3 Plus inverters General (2.5 MW, 5 MW)
EMC Directive 2014/30/EU (EN 55011:2016 + A1:2017 + A11:2020, group 1, class A, EN 61000-6-2:2005/AC :2005) EN 62109-1:2010, EN 62109-2:2011 EN 62477-1:2012 + A11:2014 + A1:2017 + A12:2021 VDE 4110/4120/4130
Warranty
≥ 70 % capacity retention after 10 years (at 2 cycles/day, max. 7,300 cycles)
Recycling
Recycling/reuse is accepted free of charge

Free area? Calculate potential now

Do you own unused land and want to profit from it? With our lease calculator, you can quickly obtain a non-binding estimate of how much your land could earn you each year. With as little as 450 m², you can become part of the energy transition—in a predictable, sustainable way and without any effort on your part.

If you need less capacity

Gewerbespeicher

Die Voltfang Gewerbespeicher bieten maximale Leistung und Flexibilität für Innen- und Außenbereiche. Ob für kleine Unternehmen oder industrielle Anwendungen, sie erhöhen den Eigenverbrauch, verstärken Ihre Ladeinfrastruktur und reduzieren teure Lastspitzen.

Kapazität ab

180 kWh

Leistung ab

184kW

Large battery storage FAQs

A large-scale battery storage system is a stationary energy storage system with a capacity in the megawatt hour range. It stores electrical energy that can be released again when required – for example to stabilize the grid or for energy trading. It is usually stored using lithium-ion batteries. Modern systems such as the Voltfang 2 Plus Grid-Scale have a modular design, intelligent control and comprehensive monitoring of each individual battery cell.

Large-scale battery storage systems are suitable for industrial companies, municipal utilities, energy suppliers, charging park operators and commercial enterprises with high electricity consumption. Typical applications include peak shaving, security of supply, provision of primary and secondary control power, grid stabilization and participation in the electricity market.

The Voltfang 2 Plus Grid-Scale offers high cost-effectiveness, maximum reliability through redundancy, flexible scalability, efficient climate control, comprehensive remote monitoring and a long service life. By using requalified electric car batteries from German manufacturers, the system is particularly sustainable and conserves resources. The modular design allows flexible project sizes from individual containers to large battery parks.

As every project has individual requirements and framework conditions, it is not possible to provide exact prices across the board. After a free electricity analysis and request for quotation, Voltfang offers you non-binding price information tailored to your project. This will give you a reliable estimate of the cost-effectiveness and amortization for your company.

After your inquiry, you first fill out a non-binding quotation form. Your project will then be individually analyzed to determine the optimum storage tank size and design. The requirements and details are agreed in a personal consultation. Voltfang accompanies you from planning, delivery and installation through to commissioning and subsequent operational management.

The Voltfang 2 Plus Grid-Scale is available as a 20 or 40-foot container. It offers a gross capacity of up to 6.35 MWh per container and a usable capacity (depending on the unloading depth) of up to 5.72 MWh. The rated output is up to 2.6 MW, depending on the version. The system can be expanded on a modular basis so that projects in the double-digit MWh range can be realized.

The Voltfang 2 Plus Grid-Scale uses requalified lithium-ion batteries (NMC) from European automotive applications. The cells meet the automotive standard and offer maximum efficiency (up to 98.26% charge/discharge efficiency) as well as an expected service life of 15-20 years. All components such as inverters, air conditioning and protection technology are designed for continuous operation and high reliability.

You receive a 5-year warranty on the system and capacity as standard. With the optional Batteryflat service, the warranty can be extended to 10 years and up to 8,000 charging cycles – regardless of usage. You benefit from 24/7 monitoring, remote maintenance and proactive service from the Voltfang team over the entire operating period.

Voltfang produces its battery storage systems in Aachen (NRW) in Germany. Production is carried out to the highest quality standards. The battery modules consist of tested and requalified electric car batteries from German automotive production, which means that no additional resources are required for new battery cells.

The system is CE and UN38.3 certified, meets the IP56 protection class and is designed for outdoor use. Comprehensive monitoring at cell level and an intelligent battery management system ensure maximum safety. In addition, there is a multi-level redundancy concept to ensure uninterrupted power supply.

It operates around the clock with an advanced energy management system (EMS) that monitors each individual cell and detects potential faults at an early stage. The system enables proactive maintenance and minimizes downtime. Updates, analyses and services are provided digitally to ensure maximum availability.

The Voltfang 2 Plus-Grid Scale can be used flexibly: for grid stabilization, for energy trading or for protection against power outages. It is suitable for market and grid-supporting applications as well as a component of a sustainable energy supply.

The delivery time depends on the size of the project and individual requirements and is determined after consultation. A prerequisite for the installation is a suitable outdoor location with sufficient space (e.g. for a 20 or 40-foot container, 5 meters from the nearest building) and a suitable connection to a transformer station or a medium-voltage line. Voltfang supports you in planning and coordinating the necessary requirements.