We are excited to share insights from the successful commissioning of a Wolong-ATB Battery Energy Storage System (BESS) project in the Czech Republic.

Project Scope:
• Products: 2 x All-in-One 20ft BESS Containers (Model: WL-ESS-1120kW/2363kWh-400V)
• Total Capacity: 2240kW / 4726kWh connected to a 400Vac grid

This state-of-the-art system is specifically designed to participate in the Czech ancillary services market, unlocking multiple value streams, including:
• Frequency Regulation Services (FCR & aFRR)
• Fast-Response Reserve Capacity
• Energy Arbitragein the Electricity Spot Market

Built for the Commercial and Industry Sector
This project features our NEW range of plug-and-play All-in-One 20ft BESS containers. Engineered for flexibility, this range is tailored specifically for mid-scale Commercial & Industrial (C&I) projects.This project features our NEW range of plug-and-play All-in-One 20ft BESS containers. Engineered for flexibility, this range is tailored specifically for mid-scale Commercial & Industrial (C&I) projects.

All housed within a single 20ft container, we offer a variety of configurations to suit your energy needs:
• WL-ESS-1152kW/3086kWh-400V
• WL-ESS-1280kW/2700kWh-400V
• WL-ESS-1120kW/2363kWh-400V
• WL-ESS-640kW/2363kWh-400V
• WL-ESS-960kW/2025kWh-400V
• WL-ESS-640kW/2025kWh-400V






Plug. Play. Power.

We look forward to welcoming you at Intersolar 2026 in Munich, Germany, from June 23–25. Our team will be on-site to provide more details and discuss your project requirements.

For more information, visit: https://www.atb.wolong.com/en/ES3.php

We Power Your Future!