Location: Poland

Project Capacity: 2MWh (20 units of 100kWh SolarEast Air-Cooled ESS)

Main Technology: High-performance LiFePO4 lithium battery Grid Connection

Date: September 13, 2025 Estimated

ROI: 4–5 Years 

Project Background

As Poland accelerates its energy transition toward the 2026 European Green Deal milestones, a specialized small-scale manufacturing plant faced rising electricity tariffs and grid instability. The client required a robust, future-proof solar energy storage battery solution to maximize their onsite solar PV utilization and ensure 24/7 operational continuity. 

The Challenge

Volatile Energy Prices: Navigating the fluctuating Day-Ahead Market (DAM) prices in the Polish power sector.

Grid Constraints: Managing peak demand charges that penalize high-intensity industrial loads.

Sustainability Mandates: Meeting 2026 ESG (Environmental, Social, and Governance) reporting standards for carbon footprint reduction. 

The Solution: SolarEast 2MWh Distributed ESS

To address these challenges, we deployed 20 units of 100kWh air-cooled LiFePO4 lithium battery cabinets, creating a decentralized yet centrally managed 2MWh Energy Storage System (BESS). Each unit is powered by high-density lifepo4 battery cells, known for their thermal stability and long cycle life. 

Key Technical Highlights (2026 Future-Ready)

Global Compliance & Safety: The system is fully certified with CE and UN38.3, meeting the most stringent European safety and grid-connection standards for any solar energy storage battery installation. 

AI-Driven EMS (Energy Management System): The system features an AI-optimized controller capable of predictive analytics. It analyzes local weather data and 2026 electricity price forecasts to automate Peak Shaving and Load Shifting. 

VPP-Ready Architecture: Designed with communication protocols ready for Virtual Power Plant (VPP) integration, allowing the client to participate in frequency regulation markets by 2026. 

Grid-Forming Capabilities: The inverters are equipped with advanced grid-forming technology, providing superior synthetic inertia and backup power during grid outages.

Advanced Thermal Management: Tailored for the Polish climate, the intelligent air-cooling system ensures the lifepo4 battery cells operate within the optimal 25°C to 35°C range, even during peak summer loads. 

Results and Financial Impact

Rapid ROI: Based on current energy price trends and optimized self-consumption, the project has an estimated Return on Investment (ROI) of only 4–5 years.

Energy Independence: Increased solar self-consumption rate from 40% to over 90% using our integrated solar energy storage battery system.

Cost Optimization: Expected to reduce annual energy expenditure by 35% through the mitigation of peak demand charges.

Carbon Decarbonization: Offset approximately 1,200 tons of CO2 emissions annually, aligning with the client’s 2026 Net-Zero Roadmap.

Operational Resilience: Seamless transition to backup mode within milliseconds, protecting sensitive manufacturing machinery from voltage drops.

Conclusion

Connected to the grid on September 13, 2025, this 2MWh project stands as a flagship for Commercial & Industrial (C&I) storage in Eastern Europe. By combining SolarEast’s reliable LiFePO4 lithium battery hardware with 2026-standard smart software, the client has transformed their facility into a modern, resilient, and sustainable "Factory of the Future." 

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