Volthein and CATL sign supply agreement, deepening a long-term partnership.
A cooperation that began in 2025 now has a firm framework for 2027.

Prague, November 3, 2026: Volthein, a battery energy storage system (BESS) integrator active in Germany, Austria, the Netherlands, the Czech Republic and other EU countries, is strengthening its long-standing relationship with CATL, one of the world’s leading battery manufacturers. The two companies have worked together since 2025, and the newly signed supply agreement marks the next step in a partnership built gradually and with a long-term view.

A framework built for the long term

Under the agreement, CATL will supply energy storage systems for battery storage projects delivered by Volthein across its European markets. The focus is on 2027 and the projects currently in preparation.

For Volthein’s clients, this means supply certainty and proven tier-1 technology. It also gives them a clear basis for planning projects from permitting through to commissioning.

Consistent in our direction

From the beginning, Volthein has built its business on a simple principle: long-term partners, technology that performs over the full project lifetime, and local integration know-how that turns hardware into working assets on the grid. The partnership with CATL is a natural continuation of that approach.

“When our clients plan a project, they need certainty that the technology will arrive on time, perform as designed and last the full project lifetime. The agreement with CATL gives them that certainty for 2027. For us, it confirms that long-term partnerships are the right way forward, and the ones who benefit most are our clients’ projects.”

Michal Sekerák, CEO & Founder, Volthein

About Volthein

Volthein is a BESS integration company, not a manufacturer. Its value lies in the engineering, commissioning and long-term operation of complex battery energy storage systems across Central and Western Europe. With a team rooted in high-voltage infrastructure, Volthein covers the full project lifecycle, from design and grid connection up to 400 kV through commissioning, EMS integration and after-sales support. Volthein has integrated more than 50 projects in 9 countries. Learn more at volthein.com.

About CATL

CATL is a global leader in new energy innovative technologies, committed to providing premier solutions and services for new energy applications worldwide. The company is one of the world’s largest suppliers of batteries for both electric mobility and stationary energy storage.