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."
For more info, pls visit our official website at: https://www.solareastbess.com
▼ ▽ CHANNELhttps://www.youtube.com/@SolarEastBESS
Related Products
100kWh to 241kWh Air cooled Energy Storage System
Scalable air-cooled C&I BESS covering 100kWh to 241kWh in a single cabinet. Self-developed BMS, EMS, PCS, and thermal management fully integrated — no third-party components. Parallel connection supports expansion to MWh-scale. Suitable for industrial parks, warehouses, and commercial solar+storage projects.
100kWh–241kWh in One Cabinet
Self-Developed Core Components
Parallel to MWh-Scale
Smart EMS + Remote O&M
30kWh to 60kWh Hybrid Energy Storage System
Compact hybrid air-cooled cabinet for small C&I and solar+storage projects. 30kWh to 60kWh capacity with built-in AC/DC coupling capability — compatible with existing solar installations without additional inverter. Off-grid backup power switching under 20ms. Ideal for small factories, retail outlets, and telecom base stations in SEA and Middle East markets.
30 / 40 / 50 / 60kWh Options
AC/DC Coupling, Solar-Ready
Off-Grid Backup <20ms
Compact for Urban C&I Sites
100kWh Hybrid Energy Storage System
50kW/100kWh all-in-one hybrid cabinet with built-in 2-MPPT solar input (up to 100kW PV), off-grid switching (<20ms), and air-cooling. Pre-assembled, commissioned within 8 hours. No separate inverter needed — ideal for solar+storage integration projects in industrial parks, farms, and remote C&I sites.
Built-in 100kW Solar MPPT Input
Off-Grid Ready,<20ms Switch
All-in-One, 8hr Commissioning
Air-Cooled, IP55, –20°C to 55°C
Related Solutions
Residential Energy Storage System Solutions
+ -SolarEast's residential energy storage system, designed for homes, villas, sunrooms, and communities, stores solar energy to reduce power bills and ensure reliable day-and-night energy use.
Commercial & Industrial Storage System Solutions
+ -SolarEast BESS is a supplier of lithium iron phosphate batteries, microgrid energy, large-scale battery storage, grid-scale energy storage, high-voltage energy storage batteries, and energy storage solutions. SolarEast BESS provides tailored 30kWh to 522kWh+ solutions for factories, malls, and data centers. Optimize energy use, ensure backup power, and achieve 24/7 grid resilience with advanced liquid-cooled technology.
Energy Storage Solutions for Industrial Parks
+ -As a leader in electrical energy storage systems, SolarEast BESS delivers turnkey solutions—from site analysis and system design to installation and long-term O&M. Our lithium battery energy storage technology ensures high cycle life and maximum safety, providing a reliable foundation for the next generation of eco-industrial parks.
Hotel & Guesthouse Battery Storage Solutions
+ -SolarEast BESS provides hotels and inns with efficient, safe, and smart energy storage equipment designed to slash operational costs and meet carbon emission regulations. Our all-in-one hybrid energy storage systems seamlessly integrate with your existing solar energy storage system, leveraging advanced high voltage energy storage technology to ensure a stable 24-hour power supply.
Utility Scale Energy Storage Solutions
+ -Empower the Grid with SolarEast BESS. Scalable 1.2MWh to 5MWh+ liquid-cooled containers designed for grid stability, renewable integration, and maximum ROI. Our industrial and commercial energy storage systems including small integrated energy storage and large customized energy storage solutions, which are widely used in microgrids, off-grid power supply, peak cutting and valley filling, demand side management and backup power.
Energy Storage Solutions for Farm & Island
+ -Whether you are looking for a reliable solar battery energy storage system for sale or a robust hybrid power network, SolarEast BESS transforms unstable grids into resilient, smart energy hubs for rural and coastal communities.
