Cold thermal storage crucial to boosting liquid-air energy storage efficiency
Researchers reviewed 110 studies on cold thermal energy storage in liquid-air energy storage, finding that cold storage performance has a far greater impact on system efficiency than previously assumed. While phase change materials offer high theoretical efficiency gains, simpler packed-bed sensible heat systems are currently the most mature and cost-effective option, with further experimental validation needed to bridge the gap to large-scale deployment.
Poland adds 3.6 GW of solar in 2025
Poland’s cumulative solar capacity reached 24.8 GW by the end of 2025, with last year’s growth led by C&I and large-scale installations.
Hinen launches 15 kW three-phase hybrid inverter
The Chinese manufacturer said its 15 kW three-phase low-voltage hybrid inverter is paired with the stackable BP5000 5 kWh battery supporting up to 120 kWh. It features three MPPTs, 150% oversized PV input, and smart load management for optimized self-consumption.
Made in Europe: Sungrow builds first European factory in Poland
Sungrow says it plans to invest €230 million ($274 million) in its first European factory in Wałbrzych, Poland, to produce inverters and battery energy storage systems (BESS).
Key takeaways from Solar Energy Expo in Poland
Solar Energy Expo 2026, Poland’s flagship PV-plus-storage trade fair, returned this month with a small show-floor footprint but a sharp focus on flexibility and market reform, as well as the storage, inverter and grid-forming technologies shaping the nation’s next phase of grid integration.
Poland draft grid law could slow solar and storage investment, warns industry
The Polish Photovoltaic and Energy Storage Association (PSFiME) says proposed changes to Poland’s energy law could impose high upfront costs on developers, raising market entry barriers and unfairly favouring large, well-capitalized players.
Poland’s massive new airport project to host utility-scale solar-plus-storage project
Poland’s Central Transport Port company tendered 20 MW of solar PV plus 50 MW of battery storage capacity with a working time of two hours. The project’s capacities could be expanded in the future, when the Port Polska airport will be fully operational.
ML System unveils solar facade panels, roof-integrated PV tiles
The Poland-based module manufacturer has developed Photonwall, a building integrated solution for ventilated façades. It also offers Photonroof, a ceramic PV roof tile solution. Both BIPV products are available in colors and finishes that match the aesthetics of modern and historic buildings.
Poland projected to reach 59.1 GW of solar by 2035
London-based consultancy GlobalData says Poland could add between 3 GW and 4 GW of solar annually through to the middle of the next decade.
Poland allocates subsidies to 14.5 GWh of energy storage projects
Poland has awarded public support to 172 large-scale battery storage projects totaling 14.5 GWh, with construction required to be completed by the end of 2028.
