Reference project

Frenger Ladepark – Public fast charging infrastructure

The Frenger charging park in Cologne shows how PV systems, battery storage and smart control can work together: Several charging points are available in the on-site parking lot – including two 300 kW HPC fast chargers and 22 kW AC charging points. The battery storage system makes optimum use of the company’s own solar energy and offers customers a favorable charging price.

Profile

  • Company: Frenger Charging Park
  • Location: Cologne, North Rhine-Westphalia
  • Industry: Public charging infrastructure

Benefits for the charging park

Attractive charging prices
Thanks to battery storage and self-generated electricity, customers benefit from low rates of €0.30/kWh.
Optimal use of solar power
PV energy is stored and used to operate the charging stations.
Reliable operation
Smart control prevents grid overloads and keeps the charging infrastructure stable
CO₂ reduction immediately measurable
Lower emissions through the use of requalified electric car batteries

Implemented use case

A public charging park with fast and normal charging stations was set up in the company’s parking lot. The combination of a 500 kWp PV system and battery storage ensures that a large proportion of the energy is generated and stored locally. Thanks to intelligent energy management, the charging infrastructure remains available at all times and customers can charge at an attractive price.

Self-consumption optimization
Independent and sustainable
Charging station infrastructure
Power to the point

Aim of the project

The aim of the project was to build a sustainable charging infrastructure in Cologne that is both environmentally and economically viable. The operator wanted to make efficient use of its own PV electricity, avoid grid loads and at the same time generate new revenue through public charging services.

Our customized solution

A 360 kWh battery storage system with 360 kW output was installed, combined with a 500 kWp PV system and smart controls. This system optimizes self-consumption, stabilizes the charging infrastructure and makes attractive prices possible for users.

Our energy storage solution

Capacity up to

360 kWh

Power up to

360 kW

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 loading park

The Frenger charging park in Cologne uses a PV system and a 360 kWh battery storage system to offer fast charging from €0.30/kWh - sustainably and profitably.
2 HPC chargers (300 kW) Fast charging infrastructure
22 kW AC charger Additional charging points
360 kWh storage Energy for low-cost charging
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Teveo logistics center

Teveo operates a fully automated logistics center in Ansbach with a PV system, 750 kWh battery storage and 16 charging points - efficient, sustainable and future-proof.
749 kWp PV system
16 Charging points
20.000 m² Surface area
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.