CorabES opens Polish storage factory

CorabES has opened a factory in Środa Śląska, Poland, for the production of large-scale battery energy storage systems.

The facility is expected to provide initial annual production capacity of approximately 0.8GWh to 1GWh. CorabES is part of the MS Galleon group and sits alongside other energy businesses including Corab, a photovoltaic mounting and systems company, and Ekovoltis, an energy trading business. The group structure links storage manufacturing with solar infrastructure, energy services, and electricity market participation.

CorabES systems are designed for commercial, industrial, and utility-scale applications, with product capacities extending up to 6.68MWh per unit. The systems include modular scalability, cooling, fire protection, data-control functionality, remote access, encrypted data transmission, and SCADA integration. Polish design and production form part of the company’s positioning as it builds a domestic manufacturing base for large storage assets.

Poland’s battery market is moving quickly from early project development into a more industrial phase. Capacity market contracts, renewable integration, and the gradual reduction of coal-fired generation are increasing the need for flexible assets that can support balancing, reserve, peak management, congestion relief, and local power quality.

The country’s storage pipeline has already begun to attract optimisation and route-to-market partnerships, including the R.Power and Axpo Polish BESS optimisation agreement, which centred on revenue management for a large battery project. Manufacturing capacity now adds another layer to that market buildout.

Domestic production could become an important differentiator as deployment increases. Battery energy storage projects depend on more than cells and containers. Fire safety, HVAC, control architecture, communications, grid connection design, transformer selection, civil works, and commissioning all influence performance, safety, and bankability. Factory-built systems with regional service support can reduce project complexity when developers are working to tight connection and delivery programmes.

The manufacturing element also supports a market that will require repeatable designs. As more projects move from development into procurement, developers and utilities will need equipment that can be delivered consistently, commissioned predictably, and maintained over long operating lives. Safety systems and digital integration will remain central, particularly as batteries are deployed closer to industrial sites, substations, and renewable generation assets.

CorabES’ position within a wider energy group may also support more integrated project models. Storage can be paired with solar generation, operated against energy trading strategies, or deployed as a standalone grid-support asset where network conditions justify it. Connecting manufacturing, energy services, and market participation can shorten the gap between equipment supply and operational revenue.

Poland’s power system is entering a period in which flexibility will shape investment decisions across generation, networks, and industrial loads. Higher renewable output creates more frequent periods of surplus and constraint, while demand-side electrification increases the value of controllable capacity. Batteries can help bridge those conditions, but only where market rules, grid access, and technical integration are aligned.

Local manufacturing will not remove exposure to international battery component markets, but it can give Polish developers and utilities more control over system design, delivery, and aftercare. As storage becomes a core part of Poland’s power system, that control is likely to become increasingly valuable.

Further information on CorabES storage systems is available from CorabES.