Fox ESS G-Max 100kW All In One System 215kWh Storage (GM215kWh-100kW-2h)

Fox ESS GM215kWh-100kW-2h: The Intelligent Commercial Energy Storage System for Scalable Power Control

Engineered for peak efficiency, the Fox ESS GM215kWh-100kW-2h combines high-capacity lithium iron phosphate (LFP) battery storage with advanced power conversion, safety, and intelligent control in one containerised unit. Whether you’re offsetting peak demand, load shifting, or integrating with a PV system, this solution delivers a plug-and-play route to energy independence for commercial operations.

High-Capacity Storage with Long-Term Durability

The GM215kWh-100kW-2h offers 215kWh of usable energy storage capacity with a powerful 100kW rated output , scalable and ready to meet the energy needs of business parks, factories, and large-scale renewable projects. Its integrated lithium iron phosphate (LFP) cells support up to 8000 cycles at 70% end-of-life, with full-depth discharge capability for maximum efficiency.

• 215kWh usable storage with 100kW continuous output (110kW peak)
• 0–100% Depth of Discharge for full capacity utilisation
• ≥8000 charge/discharge cycles for long-term reliability

All-in-One Design for Fast Installation

Built around an integrated, containerised design, the GM215 streamlines installation by combining the battery system, power conversion system (PCS), safety modules, and thermal management into one standardised outdoor unit. It arrives preconfigured from the factory for minimal setup time onsite.

• Preconfigured for plug-and-play deployment
• Ideal for retrofits or new-build commercial PV systems
• Standard enclosure size: 1040 × 1500 × 2200 mm

Smart Grid Interaction and Flexible Control Modes

This system supports a wide range of commercial use cases, including peak shaving, frequency regulation, PV-storage coordination, and emergency backup. Intelligent control modes are supported through Fox ESS Cloud, with connectivity via Ethernet, Wi-Fi, 4G, or 5G for real-time system oversight and remote diagnostics.

• Compatible with PV and off-grid energy systems
• Supports load shifting, energy trading and time-of-use savings
• Fully cloud-connected for data visibility and management

Advanced Safety Architecture and Grid Compliance

The GM215 system incorporates extensive protective features, including aerosol fire suppression, IP67 battery pack sealing, and arc fault detection. Its multi-layered BMS monitors temperature, voltage, current and state of charge across 128 sensors, triggering pre-emptive alarms for any abnormalities. According to the datasheet, it meets stringent UK and EU regulations including EN 50549 and IEC 62619.

• Aerosol fire suppression and compartmentalised safety design
• Meets CEI-021, EN 50549-1/-2, and IEC/UN battery safety standards
• IP54 system enclosure, IP67 battery protection, and -25°C to +55°C operating range

Why Evergy Recommends This Product

We recommend the GM215kWh-100kW-2h for commercial clients needing secure, scalable energy storage with minimal maintenance. It’s especially effective for businesses tackling rising grid costs, demand charges, or integrating large solar arrays.

• Turnkey design reduces installation and commissioning time
• Pairs perfectly with our commercial solar panels and three-phase inverters
• Also see the R110 Inverter for high-capacity grid-tied installations

Ideal for Commercial & Industrial Applications

This model is designed for logistics centres, factories, agricultural estates, and large retail sites seeking to improve energy resilience, reduce peak demand charges, and optimise solar storage returns.

Key Technical Specifications

• Storage Capacity: 215kWh
• Rated Power Output: 100kW (110kW peak)
• Dimensions: 1040 × 1500 × 2200 mm
• Weight: <2500kg

Visit the specification tab or download the full datasheet for detailed technical information.

Build Your Complete System

Combine the GM215 with high-efficiency solar panels, mounting kits, and system monitoring tools for a turnkey commercial solar-plus-storage solution. You can also learn about commercial support schemes in our solar grant guide.

FAQs

Q: Can the GM215 be used for off-grid applications?
A: Yes , it supports multiple energy modes including PV-storage coordination and standalone battery operation.

Q: Does the system require active cooling?
A: Yes , the GM215 uses integrated liquid cooling for precise thermal management and extended battery life.