Energy Storage for Industry: Solutions for Supply Security and Efficiency
Reduce energy costs and peak loads while improving supply reliability with an integrated energy storage solution. Battery storage systems are essential for grid stability and efficient energy use, especially when generation and prices fluctuate.
An industrial battery energy storage system (BESS) stores energy, increases flexibility, and supplies power when needed. ONI offers complete solutions to sustainably reduce energy costs.
Typical Applications
- Peak Shaving & Grid Fees: Smooth out peaks, reduce power prices, and stabilize plant operations.
- Self-Consumption & Time-of-Use: Smartly utilize PV surpluses and take advantage of low-cost time slots.
- Resilience & Process Reliability: Secure critical processes through rapid switching/backup.
- Scalability & Future-Proofing: From smaller industrial projects to large-scale storage systems—depending on load profiles and expansion paths.
An industrial energy storage system combines predictability, risk minimization, and transparency for management, engineering, and procurement. As a single point of contact, ONI offers turnkey solutions, consulting, and service to conserve resources and accelerate decision-making.
- Transparent basis for decision-making (ROI/business case) instead of gut feelings
- Greater operational reliability through predictable performance and backup options
- Less risk in procurement & operations through clear standards/partner
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Here’s how your industrial energy storage project works with us
At ONI, you get everything from a single source: from the initial consultation through analysis and planning to installation and commissioning—including tailored services for implementation, as well as service and maintenance.
- Capture load profile & set goals: Analysis of load profiles, annual peaks, and consumers as the basis for sizing.
- Potential analysis & business case: Potential uses of the battery storage system determine cost-effective operation.
- Technical Concept & Integration: Planning and integration into existing infrastructure for stable operation.
- Implementation: Engineering, installation, and commissioning support the project.
- Operation & Optimization: Monitoring and continuous optimization ensure long-term success.
Differences, Limitations, Combinations
An industrial energy storage system is not just there “for emergencies,” but also optimizes energy and electricity in everyday use: It stores solar power from PV systems, smooths out load peaks, and can provide additional backup for critical applications. Conventional emergency power solutions, on the other hand, are primarily aimed at providing power during outages—depending on the operation, a combination of the two may therefore be advisable.
An industrial energy storage system is not just there “for emergencies,” but also optimizes energy and electricity use in everyday operations: It stores solar power from PV systems, smooths out load peaks, and can provide additional backup for critical applications. Traditional emergency power solutions, on the other hand, are primarily designed to provide power during outages—depending on the operation, a combination of both may therefore be advisable. While emergency generators often only start up in the event of an incident, a battery storage system actively participates in normal operation, thereby delivering continuous economic benefits. A precise design of the kWh capacity, protection and measurement concepts, as well as reliable monitoring, are crucial to ensure that industry and commerce benefit during operation.
Lithium-ion battery storage systems are the most widely used: they are efficient, respond quickly, and are particularly suitable for peak shaving, optimizing self-consumption of solar power, and dynamic applications.
Sodium-ion batteries are seen as an exciting alternative for companies looking to reduce their reliance on certain raw materials and develop robust system designs in the future—in this context, it is worth taking a closer look at their efficiency and lifespan in real-world applications.
Redox flow can offer advantages when large amounts of energy need to be supplied over extended periods and many cycles are required, but it typically requires more space and appropriate integration.
Second-life solutions enhance sustainability but require clear testing and safety standards as well as effective monitoring.
Hybrid solutions combine the strengths of multiple approaches to optimally balance performance, energy requirements, and operational resilience—often in collaboration with experienced partners.
Industrial Energy Storage: When Heat/Cooling Becomes the Key to Efficiency
Thermal energy storage complements industrial electricity storage wherever heat or cold plays a major role in operations. Excess energy—such as from solar power and PV systems—is converted into heat or cold and used at a later time. This increases efficiency, reduces electricity peaks, and supports sustainability within the company.
Technology & Grid Integration of Energy Storage Systems: System Architecture, Connection, and Protection Concepts
An industrial energy storage system is a coordinated integrated system consisting of battery storage (often housed in a battery container), an inverter, an energy management system (EMS), a substation, and safety and monitoring components such as fire protection and monitoring. The inverter connects the storage system to the grid and provides the required power for industrial and commercial applications, while the EMS optimizes operation—e.g., for peak shaving, self-consumption from PV systems, or securing critical loads. It is crucial that all products work together seamlessly and that the kWh sizing matches the load and the desired strategy.
For grid integration, grid compatibility, reactive power specifications, and clear protection concepts are central: The energy storage system must operate stably, not negatively impact the grid, and safely shut down or switch to defined operating states in the event of faults. Measurement concepts ensure that energy flows are transparently recorded and control strategies are reliably implemented—for example, to optimize solar power usage or limit load peaks. In addition, well-designed protection and safety measures increase service life and operational reliability, particularly at demanding industrial sites. The result is an industrial energy storage system that not only delivers power but also functions as a reliable building block for renewable energy, supply security, and sustainability within the company—often planned and implemented in collaboration with experienced partners.
Commercial energy storage systems are typically smaller in scale and designed for typical commercial load profiles (e.g., retail, office, and trade). Industrial energy storage systems are often designed on a larger scale, more deeply integrated into processes, and tailored to higher performance requirements, safety protocols, and more complex grid integration.
Lithium-ion battery storage systems are widely used and are well-suited for dynamic applications such as peak shaving and self-consumption. Sodium-ion technology can be an attractive alternative, depending on the product, while redox flow systems may offer advantages in certain industrial scenarios involving large amounts of energy and high cycle counts. The choice should always be based on operational requirements, space constraints, safety requirements, and the desired service life.
Grid compatibility, reactive power requirements, protection strategies, and measurement concepts are crucial for reliable grid integration. The inverter, energy management system (EMS), substation, and monitoring system must be carefully coordinated to ensure that the energy storage system can operate stably and in compliance with regulations on the grid.
Thermal energy storage involves “temporarily storing” heat or cold so that it can be used later. This is achieved, for example, by heating a material (sensible heat), melting a substance (latent heat), or using reversible chemical processes (thermochemical storage). It is used, among other things, in buildings (heating/hot water, load shifting), in district heating networks (balancing peak loads), and in industry to store waste heat and reuse it more efficiently.
