High Energy Demand Requires Maximum Flexibility

For Liebensteiner Kartonagenwerk GmbH, a groundbreaking step in this direction is the integration of four STABL battery storage systems with a total output of 1.62 MW and a storage capacity of just under 8 MWh. In combination with the existing 2.4 MWp rooftop photovoltaic system, the corrugated cardboard processor is laying the groundwork to drastically reduce electricity costs, offset peak loads, and intelligently manage its own energy supply.

Across approximately 60,000 m² of production space, the company manufactures customized packaging solutions daily for a wide range of industries. This energy-intensive production places high demands on a reliable and sustainable electricity supply.

At the same time, volatile market prices, rising grid fees, and the goal of increasing the self-consumption rate call for flexible solutions. Managing Director Bernhard Schön therefore sought a solution that combines several business objectives and adapts dynamically to changing market conditions:

Smart Energy Management Across the Entire System

Together with STABL and the EPC contractor Elektro-Häring GmbH, Liebensteiner Kartonagenwerk implemented the storage system consisting of four units, each with 405 kW of power and 1,978 kWh of storage capacity. As a partner, coneva GmbH supplies the software for the energy management system (EMS).

The storage units are used in multi-use mode and, in conjunction with the PV system, cover several use cases at once:

• Optimized PV Self-Consumption & Direct Sales: The self-generated solar power from the 2.4 MWp system is primarily used on-site or temporarily stored in the storage units. In the future, excess PV power will be sold directly in an optimised manner.
• Non-standard grid usage: Targeted peak shaving sustainably reduces grid fees.
• Electricity price optimisation via a dynamic rate: Thanks to a 100% dynamic electricity rate, the system specifically capitalises on price fluctuations in the electricity market.

Save Up to 40% on Your Electricity Bill

The perfectly coordinated overall system delivers impressive results: Thanks to the smart interplay of a PV system, battery storage, atypical grid usage, dynamic procurement, and revenue optimization through direct marketing, a reduction in electricity bills of over 40% is currently realistic.
Conrad Stetter, Head of Customer Success at STABL Energy, emphasizes: “From the very beginning, Liebensteiner specified very precisely what results were to be achieved. The multi-use approach allows the storage systems to generate value at different points simultaneously. This is precisely where the greatest potential for industrial energy storage lies today.”

With intelligently controlled storage technology and a holistic energy concept, the Liebensteiner cardboard plant impressively demonstrates how economic success and sustainable business practices can be combined in the modern packaging industry.