Battery energy storage systems (BESS) are becoming a cornerstone of the energy transition, yet their full economic potential is only realized through intelligent market integration: Enery supports operators with data-driven optimization, trading expertise, and flexible commercialization models.
Rapid expansion of renewable energy is fundamentally reshaping electricity markets. Solar and wind power generate clean energy always when it is needed. This volatility leads to significant price fluctuations. “Power systems across Europe therefore require flexible storage solutions,” says Raphaela Hein, Enery’s Power Market Expert & BESS Project Manager. Enery delivers these solutions through its Enery Portfolio Optimization (EPO) team, a specialist unit for renewable optimization and trading. “Our portfolio ranges from profit-sharing models between the battery owner and Enery as operator to tolling agreements, where the BESS owner receives a fixed fee combined with a share in additional market revenues,” says Hein. For investors and banks alike, this creates predictable cash flows while preserving upside potential.
Expertise & Flexibility
EPO offers solutions for renewable energy producers who want to maximize their energy performance and profits as well as reduce balancing cost, for renewable energy buyers who need green electricity, risk hedging, and more, and BESS owners who want to maximize the value of their assets. Currently, EPO optimizes approximately 660 MW of renewable generation assets, approximately 735 MWh of battery storage, and more than 780 GWh of green electricity deliveries. “These include assets of various types and sizes, from 5 MWh systems to one of the largest battery storage systems in Europe, spread across three markets,” says Petya Dimova, Head of EPO. “In addition, we have already contracted a further 3 GWh of storage capacity with expected commissioning by June 2026.” The team operates across several Central and Eastern European markets, including Austria, Bulgaria, Romania, Czechia, and Estonia.
According to Hein, this international experience provides a decisive competitive edge: “We gained early experience in markets that are now considered benchmarks for storage optimization. That allows us to bring new projects to economic stability more quickly. At the same time, we remain flexible in responding to individual client needs, something that clearly sets us apart from the competition.”
Petya Dimova (l.), Head of EPO, and Rapahela Hein, Power Market Expert & BESS Project Manager.
“With performance-based structures, bankable fixed tolling, hybrid and spread hedge agreements ranging from one to seven years, EPO is the preferred and trusted optimizer in our markets”, adds Dimova. “Our BESS platform enables 24/7 fully automated cross-market optimization on spot and balancing markets, capturing attractive margins for the asset, achieving approximately 60 percent pure financial arbitrage and significantly lower system dispatch and degradation.”
Higher Revenues & Reduced Risk
From a technological perspective, Enery relies on automated multi-market trading. Battery storage systems are deployed simultaneously across different market segments. This includes the day-ahead market, intraday trading, and ancillary service markets such as aFRR, mFRR, and FCR. AI-based forecasting models support these activities by analyzing price trends, load curves, and grid conditions. Trading algorithms then optimize storage dispatch 24/7. For operators, this means not only higher revenues but also a significant reduction in operational risk.
At the same time, the combination of battery storage with renewable generation assets is becoming increasingly important. Particularly in the context of Power Purchase Agreements (PPAs), storage can enhance economic stability. “One major concern with photovoltaic PPAs is the continued decline in capture rates. Storage systems can offset this,” Hein explains. “PV and battery form a natural hedge.” This improves the bankability of renewable projects while enabling off-takers to benefit from more stable pricing. As a result, hybrid solutions combining solar, wind, and storage projects are among the fastest-growing segments within the EPO portfolio.
Professionalism & Profitability
The regulatory landscape is also evolving dynamically. New legal frameworks, clearer definitions for battery storage, and adjusted grid tariffs are improving investment security in many markets. At the same time, competition is intensifying. “The gold rush period of exceptionally high margins is gradually coming to an end,” says Hein. “But with professional optimization, storage assets remain highly attractive from an economic perspective.” Going forward, success will increasingly depend on the expertise required to intelligently integrate storage into multiple markets and business models.
“With professional optimization, storage assets remain highly attractive from an economic perspective”, says Raphaela Hein.
At the same time, the role of battery storage is fundamentally changing. No longer merely a backup technology or grid stabilizer, storage is evolving into an active market instrument. As industry, mobility, and heating continue to electrify, the need for flexibility will only grow. Battery systems can balance peak loads, facilitate the integration of renewable energy, and generate additional revenue from ancillary services. Professional optimization thus becomes a central success factor.
“Storage is a key building block of the energy transition,” Hein concludes. “With the right optimization strategy, economic performance and system value can go hand in hand.” For operators, the outlook is clear: those who actively and professionally commercialize their storage assets can achieve stable long-term revenues while contributing to the transformation of the energy system.