Hydrogen as the basis for long-term energy storage

Hydrogen is not just a fuel of the future. It is a powerful tool for balancing and long-term energy storage.

On 27 April, Pavlo Butenko, an expert of the Ukrainian Hydrogen Council, spoke at the large-scale industry conference Energy Storage Day 2026, organized by the Ukrainian Wind Energy Association in Kyiv.

In his speech, Pavlo highlighted a key challenge of modern energy systems: the rapid growth of renewable energy sources creates a need not only for generation, but also for efficient management of surplus electricity and ensuring system stability during periods of low generation. This is where hydrogen comes to the forefront.

Hydrogen’s ability to store energy over long periods - from weeks to entire seasons - forms the foundation for the development of hydrogen valleys. These are not just individual projects, but integrated energy ecosystems where hydrogen production, storage, and use are combined into a single cycle. In such models, surplus “green” energy is not lost, but transformed into a resource that can be used when it is truly needed.

The use of fuel cells is particularly promising. They enable the conversion of hydrogen back into electricity, providing clean, stable, and reliable power for businesses, data centers, hospitals, critical infrastructure, and remote communities, especially under conditions of increased risks to the energy system.

It is important to understand that hydrogen does not compete with battery energy storage systems (BESS). On the contrary, they complement each other perfectly. Batteries are effective for short-term balancing, while hydrogen addresses medium- and long-term (including seasonal) storage. This combination of technologies will enable Ukraine to build a truly flexible, resilient, and decarbonized energy system.

Pavlo also placed special emphasis on human capital. No technological revolution is possible without skilled professionals. That is why the first R&D centers are already being established at Igor Sikorsky Kyiv Polytechnic Institute and Zhytomyr Polytechnic State University, preparing a new generation of engineers, researchers, and specialists who will build Ukraine’s hydrogen economy in the future.

We believe that the future of Ukraine’s energy sector lies in the integration of various storage technologies, a systemic approach, and, most importantly, competent and motivated people.

We thank the conference organizers for providing a platform for professional dialogue and the opportunity to discuss the real role of hydrogen in the energy transformation of our country.

Together, we are moving toward Ukraine’s energy independence and climate neutrality!