Three Chinese firms secure GWh-scale energy storage deals across Europe, Africa

Over the past week, three Chinese energy storage companies have announced significant strategic agreements with international clients, amounting to multiple gigawatt-hours of capacity.

On September 20, Tianneng Holding Group signed a strategic cooperation and 2 GWh framework procurement agreement with FreedomWon, one of Africa’s leading energy storage integrators. Under the agreement, Tianneng will supply battery cells, integrated systems, and full-scenario energy storage solutions, while FreedomWon will provide local market access and regional deployment expertise. The partnership aims to jointly advance localized manufacturing, system integration, and circular recycling across African markets, with an initial focus on microgrids, industrial backup systems, and smart energy applications.

For Tianneng, this marks an acceleration of its international expansion in storage, leveraging FreedomWon’s on-the-ground presence and understanding of African grid challenges. For FreedomWon, the agreement provides access to Chinese system components and supply capability, enabling faster scaling across underserved regions.

In a second agreement, Shenzhen-based Cubenergy entered a strategic partnership with European systems integrator Paneco Group for 2.5 GWh of energy storage deployment across grid-connected European projects. Under the deal, Cubenergy brings its storage systems and integration capabilities; Paneco contributes regional project pipelines, regulatory knowledge and operations strength. Together they plan to deliver utility-grade and C&I storage assets across multiple European markets.

This agreement underscores Cubenergy’s ambitions to deepen its presence in Europe. Already printing strong growth at home in C&I storage, the partnership with Paneco gives it access to European demand, helping it close the “last mile” of deployment and regulation. Meanwhile, Paneco gains access to Chinese scale and competitive system supply to compete in a fast-growing European storage sector.

On 23 September, RelyEZ Energy Storage signed a strategic agreement with three unnamed Polish energy companies — spanning infrastructure, renewables development and project execution — to deploy over 5 GWh of storage systems (VenturePro and GridUltra models) across Polish projects. RelyEZ Energy will provide technology, product deployment and development support, while its partners will provide local grid access, EPC execution and renewable project pipelines.

RelyEZ Energy, a BloombergNEF Tier 1 energy storage manufacturer, reportedly operates with an annual production capacity of 20 GWh and a strong order backlog. Export shipments are projected to reach 15 GWh in the first half of 2025 alone. The recent agreement in Poland marks a significant milestone in the company’s efforts to localize its operations in Europe.

For the Polish partners, this collaboration offers access to scaled Chinese storage solutions and engineering support, accelerating their ability to bring large storage assets online under evolving EU policy and subsidy regimes.

These three deals highlight how Chinese energy storage companies are leveraging their domestic scale advantages to establish strong positions in global markets. This shift comes as regions worldwide ramp up renewable energy integration – driving demand for long-duration, high-reliability storage solutions.

Industry forecasts indicate that global energy storage deployment will continue accelerating, fueled by grid decarbonization goals, supportive policy frameworks, and the growing maturity of large-scale battery technologies. Increasingly, China’s storage exporters are not just seen as low-cost suppliers, but as full-stack solution providers offering integrated systems, project expertise, and localization capabilities.

In the years ahead, the global market will be shaped by the ability of firms to combine localization strategies, technical differentiation, and bankability – key factors that will define the next generation of energy storage leaders.