HiTHIUM, a leading global provider of long-duration energy storage (LDES) technology, has signed a 2 GWh Master Supply Agreement (MSA) with Solarpro, Europe’s top EPC provider of PV and battery storage systems. The deal will back multiple utility-scale renewable projects across Bulgaria, Hungary, Romania, and North Macedonia, regions accelerating their clean energy transition.
The agreement will deploy HiTHIUM’s ∞Power 6.25 MWh battery energy storage system (BESS), integrating advanced 1175Ah and 587Ah battery solutions tailored for long-duration applications. These systems are designed to absorb surplus solar and wind generation, release energy during extended low-output periods, and enhance grid stability as renewable penetration increases.
Transforming Eastern Europe’s Energy Landscape
“Eastern Europe’s energy transformation requires storage solutions that go beyond short-term balancing,” said Kelson Li, Sr. Director of Sales, HiTHIUM Europe. “Together with Solarpro, we will deliver flexible, dispatchable projects that advance the region’s clean energy transition.”
Konstantin Nenov, Chairman of Solarpro, added: “Long-duration storage is the next critical upgrade to Europe’s generation mix. Partnering with HiTHIUM enables us to combine cutting-edge battery technology with our proven expertise in integrating complex renewable projects.”
Established Partnership, Expanded Scope
HiTHIUM and Solarpro have already partnered on landmark BESS projects in Bulgaria and Hungary, commissioned in 2024–25. These projects demonstrated reliable performance under advanced operational models, supported by HiTHIUM’s lifecycle service system. The new 2 GWh framework expands their collaboration to a regional scale.
HiTHIUM, which has secured a Top 2 global ranking in energy storage shipments in H1 2025, has built a strong European presence with warehouses, local logistics, and technical teams. Solarpro, with over 12 GW of solar capacity and 1 GWh of storage delivered, is recognized as a regional leader in integrating renewable and storage solutions.
The partnership reflects both companies’ commitment to making renewable generation flexible, resilient, and dispatchable, helping Eastern Europe achieve its energy transition targets.
