Press Release – suena energy secures €8 million in Series A funding to scale its AI-powered trading platform

Hamburg, September 17th, 2025 – suena energy, a technology company specializing in algorithmic optimization and trading for energy storage systems and renewable energies, has successfully closed an €8 million Series A funding round. The round was led by Dutch energy company Eneco through its investment arm Eneco Ventures and joined by impact venture capital fund 4impact capital. Existing investors InnoEnergy, J.O.S.S., Santander, and Energie 360° also participated. suena energy will use the fresh capital to strengthen its position in the rapidly growing energy storage market – with a focus on international expansion, scaling its business model, and optimizing the co-location of storage systems with renewable energy assets.

suena energy’s proprietary Energy Trading Autopilot enables fully automated, AI-driven trading of flexibilities across all relevant power and ancillary service markets. Using real-time data and forecasts, the platform generates optimal dispatch schedules to maximize revenues while minimizing risk and battery degradation.

A key focus of the growth strategy is the rapidly expanding market for co-located storage. These projects not only offer operational synergies and new revenue models but also require strong technological, regulatory, and economic integration.

suena energy addresses this complexity with a software approach that can flexibly adapt to market and project conditions, helping customers to develop storage projects quickly, efficiently, and profitably – for a resilient, decentralized, and decarbonized power system.

“This funding round marks a strategic milestone for us, enabling us to take our business model to the next level – with strong partners at our side who share our vision”, said Lennard Wilkening, PhD, Co-Founder and CEO of suena energy. “Eneco Ventures and 4impact are highly complementary to our existing investor base. Their strategic-operational and digital technology expertise bring us closer to our goal of becoming a leading provider of intelligent flexibility trading in Europe.”

4impact capital joins the investor consortium as a software-specialized impact investor, committed to supporting suena energy’s mission to bring more flexibility to the energy system and accelerate the energy transition. Through strategic guidance, a strong climate tech network, and active support in team growth and partnership building, 4impact will help position suena energy as a leading software provider for flexible energy optimization in Europe.

Till Wyszynski, Investment Director at Eneco Ventures: “suena energy impressed us with its outstanding team, innovative trading platform, and clear vision. The ability to optimize complex assets like the combination of renewables and storage in real time is a crucial element of the energy transition. suena energy has the potential to become a market leader in this space. We look forward to supporting suena energy in scaling across Europe and unlocking new opportunities in the flexibility market.”

Pauline Wink, Managing Partner and Co-Founder of 4impact capital: “We are deeply impressed by suena energy’s focus on optimizing co-located storage and renewable energy – an increasingly vital component of the energy transition – as well as the strength and complementarity of its founding team. The team has secured key customers, developed clear growth plans, and achieved significant progress. We are excited to partner with Lennard, Tom, and Miguel, and the entire team during this expansion phase.”

Christian Bauer, Member of the Executive Board and CEO for the DACH region at InnoEnergy: “Our renewed investment in suena energy highlights our confidence in the company's pioneering solution. With its innovative approach, suena energy makes battery storage more economically attractive and takes it to the next level within the system. It is an indispensable element for a stable, renewable power grid, and suena energy therefore offers the perfect solution for the rapidly growing battery storage market in Germany. It is currently one of the fastest-growing companies in this field.”

About suena energy

suena energy is the first fully algorithmic, AI-powered provider for the trading optimization of battery storage systems and renewable energy assets. The Energy Trading Autopilot uses cutting-edge algorithms and precise forecasts to optimize trading decisions in real time. Suena energy’s market-leading technology enables efficient trading across all balancing and power markets, delivering higher returns, extended battery lifespans, and minimized risks for customers. suena energy offers optimized marketing for standalone storage, co-located PV and wind projects, direct marketing of renewables, portfolio optimization, and white-label partner solutions.

About Eneco

Eneco is an international energy company committed to accelerating the energy transition. Its goal is to achieve full climate neutrality – both for its own operations and for its customers – by 2035. Eneco Ventures is the venture capital arm of Eneco. With a proven track record of successful exits, Eneco Ventures invests in ambitious early and growth-stage startups across Europe that are reshaping the energy landscape - from renewable generation and electrification to energy efficiency and grid flexibility. Leveraging Eneco's extensive operational expertise and networks, Eneco Ventures partners closely with visionary entrepreneurs to scale transformative, climate-positive technologies that drive decarbonization and empower consumers.

About 4impact capital

4impact capital is a leading early-stage impact investor in European digital tech ventures. 4impact backs ambitious founders driving sustainability and measurable impact, in line with the UN Sustainable Development Goals (SDGs).Since 2019, 4impact has been investing from its second fund in seed and Series A companies that harness the vast opportunities at the intersection of digitalization and sustainability in Europe, with a focus on the Benelux, DACH, and Nordic regions. The investment in suena energy benefits from support from the European Union under the InvestEU Fund.