When configured as a UL 9540 certified ESS: <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"> EG4 12kPV Hybrid Inverter : UL 1741 <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="2" data-aria-level="1"> EG4 WallMount Indoor 280Ah Battery : UL 1973, UL 9540A <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="3" data-aria-level="1"> Min Configuration : 1 EG4 12kPV All-in-One Hybrid Inverter and 1 EG4 WallMount Indoor 280Ah Battery <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="4" data-aria-level="1"> Max Configuration : 3 EG4 12kPV All-in-One Hybrid Inverters and 6 EG4 WallMount Indoor 280Ah Batteries <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="5" data-aria-level="1"> Total Output Power (kW) : Up to 8kW continuous per inverter, up to 24kW with max configuration <li aria-setsize="-1" data-leveltext="" data-font="Symbol" data-listid="9" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="6" data-aria-level="1"> Total Energy Capacity (kWh) : 14.3 kWh per battery, up to 85.8 kWh with max configuration 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 12kPV + 280Ah WallMount Indoor ESS

ESS

EG4 12kPV + 280Ah WallMount Indoor ESS

ESS

EG4®-12kPV-280Ah-WallMount-Indoor-Battery-ESS.webp

EG4®-12kPV-280Ah-WallMount-Indoor-Battery-ESS-2.webp

The EG4® 12kPV 280Ah WallMount Indoor Energy Storage System (ESS) ensures your home stays powered during outages. When the grid fails, it seamlessly runs your essentials—like your HVAC or home office—keeping you comfortable and productive. Its easy-to-install design and built-in heating make it ideal for indoor spaces like basements with minimal climate control.

Trusted by installers, this system offers high performance without the premium price. Monitor it from your phone and add more capacity as your needs change. UL 9540 certified, it’s built for reliable, worry-free power.

Features & Benefits

Reliable Backup:
Seamless power for critical systems during outages.

High-Power Capacity:
Supports heavy loads like HVAC for consistent comfort.

Versatile Design:
Ideal for on-grid or off-grid applications.

Easy Setup:
Plug-and-play installation for quick deployment.

Scalable Solution:
Expand to meet future energy needs.

Smart Monitoring:
Track performance remotely for efficiency.

Certified Safety:
ETL listed to UL 9540 for dependable operation.

Key Specifications

When configured as a UL 9540 certified ESS:

EG4 12kPV Hybrid Inverter: UL 1741

EG4 WallMount Indoor 280Ah Battery: UL 1973, UL 9540A

Min Configuration: 1 EG4 12kPV All-in-One Hybrid Inverter and 1 EG4 WallMount Indoor 280Ah Battery

Max Configuration: 3 EG4 12kPV All-in-One Hybrid Inverters and 6 EG4 WallMount Indoor 280Ah Batteries

Total Output Power (kW): Up to 8kW continuous per inverter, up to 24kW with max configuration

Total Energy Capacity (kWh): 14.3 kWh per battery, up to 85.8 kWh with max configuration

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