The Chinese company strengthens its presence in the European large-scale storage market through a strategic partnership in the Baltic countries, the deployment of Elementa 2 and the next generation of high energy density systems.

Trina Storage has taken a decisive step in its European strategy after sealing an alliance with Stiemo, an EPC specialist in the Baltic countries. According to the company, this agreement will enable the deployment of multi-GWh BESS systems with greater efficiency and safety, combining Stiemo’s regional expertise with Trina’s proprietary technology.

“Together we are building storage infrastructures that are ready to tackle not only today’s challenges, but also the grid of the future”, the company remarked in dialogue with Strategic Energy Europe.

Elementa 2, the company’s flagship solution in Europe, was designed from scratch to deliver high performance, safety and flexibility, adapting to emerging markets such as Lithuania, where regulatory and technical frameworks are still consolidating.

Among its features, the system incorporates a hybrid air-liquid cooling system with advanced refrigerants, ensuring stable operation even under extreme conditions of up to –35 °C and guaranteeing reliable year-round performance.

With a service life of over 15,000 cycles and zero degradation in the first year, the system also provides a modular and flexible architecture that increases energy density by 12% and allows for straightforward integration into diverse grid configurations.

“In this region, developers need robust, modular and easy-to-integrate solutions, and that is exactly what Elementa 2 delivers”, the company noted.

Trina also provides local support and technical customisation to meet the requirements of each grid operator, including fast-response capabilities for ancillary services.

The evolution of its product range in Europe is already under way with new Elementa versions offering higher capacity configurations, solutions optimised for specific services such as frequency regulation, peak shaving and capacity markets, and enhancements in software and EMS platforms enabling multi-market revenue stacking and asset optimisation.

Safety and lifecycle economics are also being reinforced to align with customer and regulatory expectations in Europe.

Elementa 2 Pro, now open for bidding with first shipments expected in the coming months, is designed for grid services, capacity markets and renewable plants requiring durations of up to eight hours.

In parallel, Trina is preparing the launch of Elementa 3, featuring 587 Ah cells with an energy density of 420 Wh/L, a compact 6.25 MWh container, and advanced thermal management and active cell balancing systems that improve efficiency, reduce auxiliary losses and increase design and integration flexibility.

Opportunities in Eastern Europe and market differentiation

The company identifies Eastern Europe as one of the most dynamic storage markets.

“Countries such as Lithuania, Poland, Romania and Bulgaria are modernising their grids and increasing renewable capacity, and storage will be essential to support this transition”, underlined Trina Storage.

This creates scope for still underexplored opportunities, such as standalone storage projects for grid services in countries with immature ancillary markets, hybrid solar + storage plants to optimise returns and accelerate renewable integration, and EU-funded capacity mechanisms unlocking new revenue streams.

Trina foresees significant growth in both front-of-the-meter and behind-the-meter applications as regulation evolves.

Currently, its European portfolio is centred on the Elementa platform, in versions 2 and 2 Pro, which use automotive-grade LFP cells manufactured by Trina itself.

These systems offer over 15,000 cycles, hybrid cooling with precise temperature control (∆T ≤ 2.5 °C), versatile installation options and multiple layers of safety, including composite fire-resistant enclosures, zonal thermal monitoring and compliance with NFPA standards.

In addition, they integrate millisecond-level anomaly detection through smart control and 1:1 NTC monitoring. The new Elementa 3 will strengthen these features with greater energy capacity and an optimised design.

The portfolio is complemented by AC solutions, plant controllers and value-added services in integration, project engineering and lifecycle maintenance over 10–20 years, including performance guarantees, augmentation options and advanced diagnostics.

Trina Storage differentiates itself in the European market through its vertical integration, allowing it to manufacture its own cells and maintain full control over safety, performance and supply chain stability.

With more than 28 years of experience in the renewable energy sector, the company transfers its reputation for innovation and bankability from the solar business to its storage division. In Europe, it has a team of more than 60 professionals dedicated to utility-scale projects and a track record of over 40 projects totalling more than 2 GWh.

Its long-term objective is to consolidate its position as a reference partner in energy storage, providing comprehensive support and future-ready solutions that enable clients to maximise value and accelerate the energy transition.