5MW / 20MWh BESS Project in Eastern Europe

Project Overview

Wenergy deployed a 5MW / 20MWh Battery Energy Storage System (BESS) for an industrial client in Eastern Europe to address grid instability, frequent outages, and low PV utilization. The system enables reliable backup power, stabilizes operations, and unlocks additional value from on-site solar generation through advanced energy management.

Solution Highlights

• High-Performance BESS Architecture: 4 × 5MWh liquid-cooled battery containers with integrated PCS and transformer design, ensuring high efficiency and system reliability.

• Compact & Cost-Optimized Design: Innovative 1:2 PCS-to-battery configuration reduces footprint by ~33% and lowers equipment and installation costs.

• Advanced Liquid Cooling: Improves thermal consistency, extends battery lifespan, and reduces auxiliary energy consumption.

• Intelligent EMS Control: Three-layer control system enables real-time grid response, precise dispatch, and optimized peak shaving and energy arbitrage.

Key Value & Customer Impact

• Energy Resilience: Zero-second switching and ≥4 hours backup ensure uninterrupted operations and protection against grid disruptions.

• Improved Renewable Utilization: Stores excess PV generation, eliminating curtailment and maximizing solar value.

• Revenue Optimization: Enables peak-valley arbitrage (~2,000 UAH/MWh potential) and reduces electricity costs.

• Lower OPEX: Reduced auxiliary consumption and system losses improve long-term project returns.

This project demonstrates Wenergy’s expertise in delivering scalable, high-efficiency BESS solutions for complex industrial scenarios, supporting energy security, cost optimization, and sustainable energy transition.