Empowering Industrial Resilience with Hybrid Solar + Diesel + Storage Integration
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In June 2025, SunWell Energy successfully deployed a 2 MW/4.6 MWh AC-coupled, liquid-cooling energy storage system for a plastic factory in Lebanon. Designed for seamless integration with solar PV, diesel generators, and unstable local grids, the system enhances energy reliability, boosts energy efficiency, and enables full on- and off-grid flexibility.
Given the region’s harsh desert climate—characterized by high temperatures and heavy dust—this deployment demanded not only smart integration but also robust, long-lifespan infrastructure. SunWell Energy tailored a rugged and intelligent solution to meet the environmental and operational demands of the Middle East market.
System Configuration Overview
Total System Name: SunWell CESS-2MW-4.6MWh
Application: Peak shaving, energy arbitrage, load backup, and off-grid resilience
Architecture: AC-Coupled, fully integrated with solar and diesel genset
Battery Storage System (Total: 4.6 MWh, Liquid Cooling)
Two 20-ft battery containers, each including:
- 10 x 232kWh lithium battery modules (per container) = 2.32 MWh
- Integrated BMS-HMI DC bus control unit
- Liquid cooling system for thermal stability and safety
- Fire suppression, lighting, and auxiliary systems
- Total: 2 × 2.32MWh = 4.64MWh (rounded to 4.6MWh)
Power Conversion System (PCS)
PCS Cabinet includes:
- 2 x 1MW PCS units (AC-grid connected, total 2MW output)
- 1 x 1000kVA transformer
- 1 x 2000kW ATS (Automatic Transfer Switch)
- EMS (Energy Management System) for real-time optimization and remote control
- Fire protection, lighting, and other auxiliary systems
System Features & Benefits
AC-Coupled PV Compatible: Seamlessly integrates with the site’s photovoltaic system
Diesel Generator Support: External gensets serve as a standby for enhanced off-grid reliability
Flexible Operation Modes: Fully supports on-grid, off-grid, and hybrid modes
In June 2025, SunWell Energy engineers arrived on-site in Lebanon to provide comprehensive support for the installation of this large-scale energy storage project.
Our team carried out system commissioning, testing, and full integration, ensuring seamless compatibility with leading inverter brands.
They also offered real-time troubleshooting and delivered localized training to empower the customer's technical team with hands-on operational knowledge. Our local partners highly appreciated their expertise and professional service.
On-Site Commissioning & Training
SunWell Energy engineers arrived on-site to carry out end-to-end deployment, including installation, system commissioning, and testing. Our team ensured seamless compatibility with the site's existing PV and inverter systems through professional integration services.
Moreover, we provided localized technical training and live troubleshooting support, empowering the customer's engineering team with essential knowledge for future operation and maintenance. The client highly appreciated SunWell Energy's responsive service and technical expertise.
Conclusion
This successful 2MW/4.6MWh deployment demonstrates SunWell Energy's capability to deliver scalable, intelligent, and resilient energy storage systems under challenging environmental conditions. It is a powerful solution for commercial users looking to achieve energy independence, reduce costs, and improve sustainability, especially in regions with unstable grid infrastructure.