Company cases about Integrated ESS Project in Poland

Integrated ESS Project in Poland

2026-02-13

Project Overview

Wenergy deployed a 250kW / 516kWh Commercial & Industrial Battery Energy Storage System (C&I BESS) for a bus charging station in Poland.

The project integrates on-site photovoltaic (PV) generation with energy storage to maximize solar self-consumption and reduce grid electricity costs associated with nighttime bus charging.

Operating Logic

Daytime Operation: The system automatically charges using excess on-site solar generation, increasing PV utilization efficiency.

Nighttime Operation: Stored energy is discharged to power bus charging activities, reducing dependence on high-cost grid electricity.

Key Value

Maximized PV Self-Consumption: Improves utilization rate of locally generated solar energy
Reduced Grid Dependency: Offsets nighttime charging demand with stored renewable energy
Lower Operating Costs: Avoids peak grid electricity prices
Supports Sustainable Transport: Enables clean energy integration into public bus charging infrastructure

This project demonstrates how a compact energy storage system enhances renewable energy utilization and optimizes operational efficiency in EV charging applications.

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