Jul22493 13. Hynfra Energy Storage (HES) – an integral part of the Hynfra Group – is a Polish company specialising in Battery Energy Storage Systems (BESS). The company innovates solutions that enhance the flexibility of power systems and integrate renewable energy sources to support the creation of a clean, stable, and sustainable future. Jacek Wiśniewski has been CEO of HES since July 2024, and in just a short space of time, has already had quite the impact as a visionary, result-driven leader, maximising the potential of his team. We speak to Jacek to learn more about his mighty work and influence following his recognition within our European CEO of the Year Awards 2025. The Hynfra Group exists to develop green hydrogen and ammonia technologies, implement zeroemission projects, and ensure long-term environmental stewardship. Under its umbrella is Hynfra Energy Storage, led by Jacek Wiśniewski, which contributes key energy storage competencies toward the overall strategy, supporting grid stability and renewable energy integration. This synergy makes possible both local investments in Poland and global energy transition projects, including Europe, Asia, and the MENA region. Jacek gives us a deeper insight into HES’s role: “The company designs, implements, and manages large-scale BESS that balance supply and demand, stabilise the grid, and enable efficient use of wind and solar energy. These technologies allow for storing energy surpluses and releases them flexibly during peak demand. Currently, HES is developing projects totalling nearly 3 GWh and coordinating, as project engineer, investments totalling 2 GWh. It is also participating in a tender for a 0.5 GWh system and has an additional 2 GWh in the pipeline.” HES’s approach is comprehensive – from concept, through design and implementation, to system servicing – and it is underscored by core values of sustainability, innovation, transparency, and collaboration. The company delivers projects for industry, local governments, state-owned companies, and both public and private sector entities, all with the aim of supporting climate goals, strengthening grid resilience and flexibility, and contributing to a low-carbon economy. Jacek goes on to tell us about his threedecade career, which hasn’t been limited to the energy sector, but he has gained highly valuable, varied experience, combined with education in Organisation and Management. As such, he formed solid theoretical foundations and the skills needed to effectively manage businesses across a range of sectors. “Before joining HES, I developed companies in the pharmaceutical and space industries,” he shares. “Over the years, I honed the ability to build effective teams of people with deep industry expertise – passionate individuals who think and act outside the box, for whom nothing is impossible. My role in such a team is to maximise the use of their potential.” He continues, “Our team’s experience in renewable energy and storage infrastructure projects allows us to combine the vision of energy transition with a practical investment approach. As CEO, I focus on creating the company’s long-term strategy. I look at the market in terms of years, not quarters – this enables decisions that bring value not only to the company but also to the entire ecosystem in which we operate.” There is no denying the incredible work that Jacek has done for HES so far – but that’s not to say that it doesn’t come without its challenges. He tells us that the biggest challenge has been regulatory instability and sudden energy price fluctuations. To adapt, he and the team introduced flexible project models and diversified financing sources, which increased investment resilience to market volatility. Meanwhile, there are plenty of opportunities, too, such as the dynamic growth of energy storage across Europe, driven by the energy transition, falling energy costs, and growing demand for grid flexibility. Jacek shares that HES is leveraging this trend by investing in innovative solutions, including the company’s proprietary evolutionary algorithm system for optimising storage performance, and developing strategic partnerships domestically and internationally. Jacek reveals, “We plan to launch several large energy storage projects in Poland and enter foreign markets with a comprehensive Powerto-X offering. In the long-term, HES intends to expand into EPC (Engineering, Procurement and Construction) competencies. The next step will be managing and serving the built energy storage facilities.” What about his own career? He tells us, “I aim to develop Hynfra Energy Storage as a leader in energy technology integration in the CEE region and as an expert voice in international energy transition debates. I plan to scale up storage projects, invest in innovation, and strengthen our network of strategic partnerships. An important element is actively participating in shaping regulations that support renewable energy and storage, to not only respond to market changes but also help create them.” Company name: Hynfra Energy Storage Contact name: Magdalena Piekarska Email: [email protected] Website: www.hynfra.com; www.hynfraenergystorage.com Energy Storage Solutions CEO of the Year 2025 (Central Europe): Jacek Wiśniewski
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