When configured as a UL 9540 certified ESS: EG4 18kPV Hybrid Inverter : UL 1741 EG4 WallMount Indoor 280Ah Battery : UL 1973, 9540A Min configuration: 1 EG4 18kPV -12LV All-in-One Hybrid Inverter and 1 EG4 WallMount Indoor 280Ah Battery Max configuration: 3 EG4 18kPV -12LV All-in-One Hybrid Inverter and 6 EG4 WallMount Indoor 280Ah Battery Total Output Power (kW): 12-36 kW Total Energy Capacity (kWh): 14.34-86.016 kWh Additional capacity may be possible by spacing ESSs 3 ft apart per NFPA 855 and IRC R328 guidelines. Consult AHJ prior to installation for permissible configurations. California Proposition 65 Warning

EG4 18kPV + 280Ah WallMount Indoor ESS

ESS

EG4 18kPV + 280Ah WallMount Indoor ESS

ESS

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EG4®-18kPV-280Ah-WallMount-Indoor-Battery-ESS-2.webp

The EG4® 18kPV + 280Ah WallMount Indoor Energy Storage System (ESS) keeps your home powered when the grid fails. No more scrambling for flashlights during outages—this system seamlessly switches to backup power, running everything from your fridge to your AC, so you stay comfortable even on the hottest nights. Its plug-and-play design makes installation a breeze, and built-in heating ensures reliable performance in spaces like garages or basements with minimal climate control.

Trusted by installers, this ESS delivers robust power for high-demand appliances without the luxury price tag. With smart monitoring, you can check your system’s status from your phone, and its scalable design lets you add more power as your needs grow. ETL listed to UL 9540 for safety, it’s built to keep your home running smoothly.

Features & Benefits

Seamless Backup:
Instantly switches to battery power during outages, ensuring uninterrupted comfort.

High-Power Output:
Supports heavy appliances like AC units, perfect for hot summer nights.

Flexible Use:
Ideal for on-grid or off-grid setups, adapting to your energy needs.

Easy Installation:
Plug-and-play design reduces setup time.

Scalable Design:
Expand with additional units to meet growing energy demands.

Smart Monitoring:
Track performance remotely for peace of mind.

Certified Safety:
ETL listed to UL 9540, with rigorous testing for reliability.

Key Specifications

When configured as a UL 9540 certified ESS:

EG4 18kPV Hybrid Inverter: UL 1741
EG4 WallMount Indoor 280Ah Battery: UL 1973, 9540A
Min configuration: 1 EG4 18kPV -12LV All-in-One Hybrid Inverter and 1 EG4 WallMount Indoor 280Ah Battery
Max configuration: 3 EG4 18kPV -12LV All-in-One Hybrid Inverter and 6 EG4 WallMount Indoor 280Ah Battery
Total Output Power (kW): 12-36 kW
Total Energy Capacity (kWh): 14.34-86.016 kWh

Additional capacity may be possible by spacing ESSs 3 ft apart per NFPA 855 and IRC R328 guidelines. Consult AHJ prior to installation for permissible configurations.

California Proposition 65 Warning