With the rapid expansion of renewable energy sources across Europe, the need for effective energy storage has become critical. At Inter Power, we closely monitor innovations in the sector and clearly see that battery energy storage systems (BESS) are no longer just an add-on—they are a key element in the future of sustainable energy.
What Makes a Battery Project Successful?
Today, a good plan alone is not enough. Investors look for projects that are:
- Well-prepared
- Financially sound
- With clearly calculated revenues and expenses
One of the main indicators for evaluating battery performance is the Levelized Cost of Storage (LCOS). This metric includes not only the initial investment but also maintenance, energy losses, operational revenue, and more. The lower the LCOS, the more effective the project is in the long term.
Key Factors Influencing LCOS:
- Battery degradation rate
- Grid connection fees
- Operation and maintenance costs
- Revenue from energy sales
- Long-term tolling agreements that provide revenue certainty
Tolling Agreements Bring Stability
Increasingly, battery projects are financed through tolling agreements—long-term contracts where an energy company operates and trades the battery’s energy, while investors receive stable, fixed income. This reduces market risks and makes projects more attractive.
Flexible Solutions Deliver Stable Results
For a battery project to be successful today, it must meet multiple requirements:
- Continuous monitoring of battery state (charge level and remaining capacity)
- Effective planning and maintenance
- Flexibility, with multiple revenue streams (known as revenue stacking)
Relying on a single income source is no longer sufficient. Successful batteries participate in:
- Grid balancing services
- Energy trading during peak demand periods
- Programs that support grid stability
What Are Investors Looking For?
Investors increasingly ask specific questions:
- Does the project have at least 50 MW of power and 100 MWh of capacity?
- Is it ready for construction?
- Is there an agreement with a reliable trader or operator?
- Is there secure grid access?
- Are the IRR and payback period well calculated?
Projects with expected returns above 10% are most attractive. Those below 8% struggle to secure funding—especially without strong regulatory support.
Grid Access – A Decisive Factor
In many cases, access to the transmission grid becomes the bottleneck. Operators increasingly prioritize projects with innovative solutions and thorough documentation—often the difference between a "possible" and a "realized" project.
What Comes Next?
Battery energy storage systems are set to play a growing role not only in large-scale energy projects but also in industrial facilities, commercial buildings, and even residential systems. At Inter Power, we are actively working in this direction, combining technical expertise, high-quality components, and comprehensive service—from design and construction to ongoing maintenance.
In today’s dynamic energy landscape, it’s not enough to simply have a good idea. Success belongs to those with well-prepared, financially stable, and technically sound projects.
BESS projects represent the future of the energy sector—but only those offering security, predictability, and flexibility will earn the attention of serious investors.
Interested in building an energy storage system?
Contact us—we’ll help you evaluate the possibilities, create a technical and financial model, and deliver a project that’s efficient and sustainable over time.
