Reference project

The Grunwald farm

The Grunwald farm is located in the Hürtgenwald/Raffelsbrand region and experiences a high energy demand in the early morning hours. To cut costs and ensure efficient energy supply, Grunwald has opted for a Voltfang battery storage solution.

Profile of Grunwald Farm

  • Location: Hürtgenwald, North Rhine-Westphalia
  • Industry: Agriculture
  • Operator: Michael Grunwald

Advantages for the Grunwald farm

Own consumption increased to 93.3%
By optimizing self-consumption
Reduction of operating costs
With the help of peak shaving
Efficient energy use
With the Voltfang storage system, self-sufficiency is 37.4%.
30t of CO2 saved over 20 years
In addition, the 2nd Life batteries do not require any further resources

Implemented use case

The Grunwald farm has achieved unbeatable advantages through the utilization of our commercial storage solution. Thanks to self-consumption optimization and peak load capping, self-produced solar power can be stored on site. As a result, the operation becomes independent of expensive grid electricity and can transition to a sustainable and cost-efficient energy supply.

Self-consumption optimization
Independent and sustainable
Peak shaving
Save avoidable costs

Aim of the project

The Grunwald agricultural business wanted to make its energy supply more sustainable. By implementing our commercial energy storage for self-consumption optimization and peak shaving, Grunwald was able to efficiently meet its energy demands, reduce costs, and simultaneously contribute to a sustainable future. A groundbreaking concept that inspires other agricultural enterprises and sets a new standard. Welcome to the energy-efficient agriculture of the future.

Our customized solution

The Voltfang commercial storage system used by the farmer Grunwald was delivered with a capacity of 58 kWh and an output of 30 kW.

Our commercial storage solution

Capacity up to

58 kWh

Power up to

30 kW

The Grunwald farm, with its sustainable energy concept, is setting a pioneering standard for future agricultural enterprises.

Additional reference projects

Below, we present additional reference projects where a Voltfang battery storage system has been implemented. These projects can encompass a variety of applications and industries, including hospitality, agriculture, bakeries, and supermarkets.

Frenger Ladepark

Der Frenger Ladepark in Köln nutzt eine PV-Anlage und einen 360 kWh Batteriespeicher, um Schnellladen ab 0,30 €/kWh anzubieten – nachhaltig und profitabel.
2 HPC-Lader (300 kW) Schnellladeinfrastruktur
22 kW AC-Lader Zusätzliche Ladepunkte
360 kWh Speicher Energie für günstiges Laden
Mehr Informationen

Logistikzentrum Teveo

Teveo betreibt in Ansbach ein vollautomatisiertes Logistikzentrum mit PV-Anlage, 750 kWh Batteriespeicher und 16 Ladepunkten – effizient, nachhaltig und zukunftssicher.
749 kWp PV-Anlage
16 Ladepunkte
20.000 m² Fläche
Mehr Informationen

Elementary school in Nuremberg

The city of Nuremberg is implementing a showcase project with the Viatis School: battery storage, PV system and heat pump provide green energy and reduce CO₂ in the education sector.
90 kWh Battery storage systems
3000 m² school area Energy-efficient supply
100 kW Heat pump
Mehr Informationen

Sedo Treepoint Textile Industry

Sedo Treepoint from Hesse supplies production and 16 e-vehicles with its own solar energy - independently, sustainably and cost-effectively thanks to 174 kWh of battery storage.
100 % Self-sufficiency
16 Electric vehicles
174 kWh Capacity
Mehr Informationen

Autenrieth Plastics Technology

Plastics technology expert Autenrieth relies on Voltfang storage systems to reduce energy costs, cut peak loads and produce in a climate-friendly way.
Peak load reduction From 230 kW to 105 kW
180 kWh Battery storage systems
CO₂ reduction Sustainable energy solution
Mehr Informationen

JET Hamburg – HPC fast loader

JET in Hamburg uses a 300 kW HPC fast charging station with Voltfang battery storage - ultra-fast charging without grid expansion, climate-friendly and economical.
2 charging points Charging infrastructure
300 kW charging capacity Fast charging capacity
80 kW grid connection Existing network capacity
Mehr Informationen

Packaging industry Kemapack

Kemapack GmbH uses a PV system and a Voltfang second-life storage system to efficiently supply packaging machines and charging points with green electricity. This reduces energy costs and increases independence from the grid.
90 kWh installed Storage capacity
45 kW available Performance
Charging infrastructure Supply of employees & fleet introduced
Mehr Informationen

Mechanical engineering Myrenne

The medium-sized company Myrenne GmbH offers complete solutions in mechanical engineering from its base in the Eifel region. The production company has a 268 kWp PV system and has been scaling its battery storage capacity ever since.
Roetgen, North Rhine-Westphalia Location
System supplemented by 336 kWh in 2024 Extension
EVO & LSK Use cases
Mehr Informationen

Steel trade Kerschgens

Kerschgens from Stolberg, a leading steel trading company, uses the Voltfang storage system to reduce peak loads and sustainably lower CO₂ emissions.
1.3 MWh Installed storage capacity
Peak load: -37.5% Reduced from 400 kW to 250 kW
Charging for electric vehicles Implemented on-site
Mehr Informationen

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How our approach works

Contact request & consulting
After completing the form, you'll receive not only further information but also the identification of a suitable battery storage system in a personal initial consultation.
Contact request & consulting
After completing the form, you'll receive not only further information but also the identification of a suitable battery storage system in a personal initial consultation.
Offer & reservation:
After consultation, our sales department will prepare a detailed offer. When the order is confirmed, we reserve the battery storage system and set a rough delivery month.
Offer & reservation:
After consultation, our sales department will prepare a detailed offer. When the order is confirmed, we reserve the battery storage system and set a rough delivery month.
Assembly & commissioning:
A specialist company installs the battery storage system, Voltfang employees put it into operation, seamless integration for optimum operation.
Assembly & commissioning:
A specialist company installs the battery storage system, Voltfang employees put it into operation, seamless integration for optimum operation.
Monitoring & support
The battery storage system is registered in the market master data register. In addition, the storage system is constantly monitored to ensure smooth operation.
Monitoring & support
The battery storage system is registered in the market master data register. In addition, the storage system is constantly monitored to ensure smooth operation.
Aftercare & service:
Voltfang provides continuous support after installation. Our team is always available for questions and support to guarantee optimum system functions.
Aftercare & service:
Voltfang provides continuous support after installation. Our team is always available for questions and support to guarantee optimum system functions.