The energy transition is increasing market volatility and pressure on grids, requiring battery storage systems to deliver not only stability, but also strong, long-term returns. To address these challenges, two of our portfolio companies, Repono, a leading developer, operator and financier of utility-scale battery storage projects, and suena energy, a specialist in automated trading optimisation, have entered into a long-term strategic partnership. The joint goal is to maximise the economic viability of battery storage projects, increase revenue stability and strengthen grid reliability.
Repono is currently evaluating a pipeline of projects in Germany with a planned storage capacity of over 500 MWh to be developed over the next 3 to 5 years. Repono contributes its expertise in project development, operation and financing, while suena, as an AI-driven flexibility trader, ensures market participation and revenue optimisation. By operating intelligently across all relevant energy and ancillary service markets, suena ensures that the battery assets are used to their full economic potential – taking into account battery ageing and capacity degradation.
Battery storage as a key technology for risk-resilient grid stability
The increasing integration of intermittent renewable energy sources such as wind and solar power is leading to increased volatility in the electricity grid. Battery storage systems play a critical role in preventing grid congestion and ensuring a stable supply of electricity. However, many existing systems are currently operated in isolated, single-market applications, leaving significant revenue potential untapped.
This is where the partnership between Repono and suena comes in: Through thorough project assessment, detailed market analysis and revenue forecasting, coupled with intelligent trading optimisation, the partners enable efficient project financing, flexible asset operation, and maximum profitability.
Unlocking battery value through smart operation
With its Energy Trading Autopilot, suena provides automated and optimised trading of battery storage systems across all relevant energy markets, including ancillary services markets for the provision of system services and electricity markets for short-term arbitrage.
This cross-market optimisation approach enables storage assets to dynamically respond to changing conditions and price signals in real time. By combining suena’s software-driven market access with Repono’s large-scale development pipeline, this partnership lays the foundation for a scalable operating model that enhances profitability and grid integration, and supports more efficient use of grid infrastructure by enabling flexible capacity where it’s needed most. The first joint projects will have a total installed capacity of 250 MW and are expected to be commercially operational from 2027.
A blueprint for scalable deployment across Europe
The partnership can serve as a blueprint for future battery storage initiatives in Germany and Europe. It demonstrates that technological excellence and smart commercial strategies must go hand in hand to unlock the full potential of energy storage. In addition to market optimisation, suena supports project financing through its accurate revenue forecasts. The company will be remunerated through a profit-sharing model directly linked to realised trading revenues. Looking ahead, the collaboration will expand to markets beyond Germany, helping to accelerate the energy transition through intelligent and efficient battery storage operations.
“This partnership exemplifies how technological innovation and smart business models can accelerate the transition to a sustainable energy future while generating profits,” says Christian Bauer, CEO of InnoEnergy DACH.
