Reference project

Efficient energy for mechanical engineering Myrenne

Myrenne GmbH from Roetgen has been a reliable partner in mechanical engineering for decades. With its own photovoltaic system and a scalable Voltfang battery storage system, the company is now also taking an innovative approach to energy supply: more self-consumption, less grid load and production that is more flexible and sustainable.

The Myrenne GmbH

  • Location: Roetgen, North Rhine-Westphalia
  • Industry: Mechanical engineering – comprehensive solutions for production and manufacturing
  • In 2024, capacity was increased to 536 kWh.

Benefits for Myrenne

Increase of self-consumption rate
Significantly increase the use of self-generated PV electricity
Smart peak load management
Production load peaks effectively reduced
production flexibility
Reliable supply regardless of production times and grid peaks
CO₂ reduction immediately measurable
Lower emissions through the use of requalified electric car batteries

Implemented use case

The first Voltfang battery storage system was installed in Myrenne GmbH’s mechanical engineering department in 2023 – with impressive results. This was followed in 2024 by an expansion to 536 kWh capacity (284 kW output). The intelligent energy management system increases the self-consumption of the PV system, avoids peak loads in production and increases self-sufficiency in operations.

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

Aim of the project

With the storage solution, Myrenne aims to reduce its dependence on the power grid in the long term and make production even more sustainable. At the same time, the system creates new scope for the future – from more stable production processes to further steps towards climate neutrality.

Our customized solution

A Voltfang storage system with a capacity of 536 kWh and an output of 284 kW was installed. The system absorbs peak loads, increases security of supply and ensures that the self-generated solar power is available even when the sun is not shining. The 2024 extension shows how well the solution has proven itself in everyday use.

Our energy storage solution

Capacity

536 kWh

Performance

284 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.

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

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

Stuttgart Airport

Stuttgart Airport relies on green battery storage systems from Voltfang to save CO₂, cap peak loads, and ensure a sustainable energy supply.
540 kWh Installed storage capacity
Net Zero by 2040 Airport’s goal
10× expansion planned auf 5,4 MWh Speicherkapazität
Mehr Informationen

PV and charging park

Our partner Bidirex has implemented an energy concept for a supermarket. PV system and Voltfang battery storage system ensure a sustainable power supply.
400 kWp Photovoltaic system
360 kWh Battery storage in a 20-foot container
22 charging points for electric vehicles, 84 parking spaces
Mehr Informationen

Apartment building

A modernized apartment building from the 1960s relies on a solar system and Voltfang battery storage for contemporary, self-sufficient living.
21.5 kWp PV system
KfW 40 EE Residential construction
100% self-sufficient Additional feed-in to the grid
Mehr Informationen

McDonald’s

The switch to green energy at the McDonald's branch in Pombal, Portugal, underlines the increased commitment of large companies to a sustainable energy supply.
Pioneer Green energy supply
Peak shaving Use case
Since 2020: 100% green energy used from hydropower
Mehr Informationen

Grunwald Farm

The Grunwald farm is located in the Eifel region and has a high demand for electricity, especially in the early hours of the morning.
Autarky Increase
Self-consumption optimization Use case
CO2 savings No new resources used
Mehr Informationen

Hotel zur Post

The 'Hotel zur Post' in Steimbke is a small, cozy private hotel with a total of 14 rooms.
PV + CHP UNIT Integration
Self-consumption optimization Use case
CO2 savings No new resources used
Mehr Informationen

ALDI Nord

With over 5,000 stores and 88,000 employees, ALDI North is one of the largest retail chains in the world.
Reduce energy costs By optimizing consumption
+ 45 % Increased self-sufficiency
100% Share of renewable energy since 2021
Mehr Informationen

Optimize your energy

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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.