Project Overview

• Location: Ruse, Bulgaria
• Application: PV + Energy Storage Integration
• Phase I: 4.35MWh/2.16MW
• Phase II: 3.179MWh / 1.485MW
• Equipment Deployed: 26 x Stars Series 289kWh ESS Cabinet

Key Highlights

Intelligent Peak Shaving Strategy
The PV plant and BESS operate together to optimize electricity costs. During low-price periods, the system prioritizes charging the ESS using solar power. During peak tariff periods, the PV system and storage discharge simultaneously to maximize energy value and reduce grid dependency.

Centralized EMS Control
All ESS cabinets are connected to the customer’s local control platform, enabling centralized monitoring, real-time dispatch, and unified operational management for more flexible energy scheduling.

Reliable & Safe Energy Storage Design
The 289kWh liquid-cooled ESS cabinets feature intelligent thermal management, modular scalability, and multi-layer safety protection, including fire detection, aerosol suppression, and explosion-proof design to ensure stable long-term operation.

Customer Value

By integrating Wenergy’s BESS solution with its photovoltaic power plant, the customer improved renewable energy utilization and reduced electricity procurement costs through intelligent peak shaving and energy arbitrage operation. The centralized EMS integration also enhances operational visibility, dispatch efficiency, and long-term system reliability for commercial energy management applications.