A panel discussion on the Polish market at the recent Energy Storage Summit CEE in Warsaw. Image: Solar Media The European Commission (EC) has approved a €1.2 billion (US$1.32 billion) state aid package for Poland to support the deployment of electricity storage facilities.
It looks to be a big step forward for the Polish energy storage market, which is already advancing into a leading position among Central and Eastern European markets, driven forward by a 2023 capacity market auction in which 1.7GW was awarded to energy storage bids.
The electricity storage support scheme aims to facilitate the reduction of fossil fuel use and the increased penetration of renewable energy on the Polish grid. Systems with 4MWh capacity or higher will be eligible, connected to either transmission or distribution networks at all voltage levels.
Over the last year or so, the European Union has approved state aid schemes to support energy storage deployments in countries. These include a €103 million package of direct grants in Romania in March 2023, €150 million for renewables and storage in Slovenia and €1.1 billion for Hungary a couple of months later.
In 2025, the typical cost of commercial lithium battery energy storage systems, including the battery, battery management system (BMS), inverter (PCS), and installation, ranges from $280 to $580 per kWh. Larger systems (100 kWh or more) can cost between $180 to $300 per kWh. How does battery chemistry affect the cost of energy storage systems?
In 2025, the typical cost of a commercial lithium battery energy storage system, which includes the battery, battery management system (BMS), inverter (PCS), and installation, is in the following range: $280 - $580 per kWh (installed cost), though of course this will vary from region to region depending on economic levels.
Exploring the Differences Between On-Grid, Off-Grid, and Hybrid Battery Energy Storage Systems MEGATRONS 50kW to 200kW Battery Energy Storage Solution is the ideal fit for light to medium commercial applications. Utilizing Tier 1 LFP battery cells, each commercial BESS is designed for a install friendly plug-and-play commissioning.
Government incentives, such as tax credits, rebates, and grants, can significantly lower the upfront costs of commercial energy storage systems. In the U.S. and Europe, businesses may receive tax credits of up to 30% of the system cost, making the investment more financially viable.
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