Product Summary:

The EG4 18kPV Hybrid Inverter is a powerful, all-in-one energy solution designed for both on-grid and off-grid applications. Delivering up to 12,000W of continuous output with 18,000W PV input, it efficiently manages power from solar, batteries, and the grid—making it ideal for whole-home backup and energy independence.

With built-in charge control, advanced power management, and seamless UPS switching (15–30ms), the 18kPV eliminates the need for additional components while ensuring reliable, uninterrupted power. Its transformer-free design improves efficiency and reduces weight, while smart features like load control, AC coupling, and peak shaving help maximize energy savings.

Designed with ETL & cETL certifications and built for durability, the EG4 18kPV delivers safe, high-performance operation with easy installation and intuitive system control.

Ships From: Texas, USA Warranty: 10 Years Support: Lifetime USA-Based Tech Support

What the EG4 18KPV does (in a nutshell)

The EG4 18KPV is a device that converts DC current produced by a home’s solar system into AC current that the home’s systems and appliances can actually use. This hybrid inverter includes advanced power management features that allow homeowners to manage solar, battery storage, utility power, and backup energy from one central hub.

Compatibility

UL 9540 Certified + Closed-Loop Communication (Grid-Tied + Off Grid):

BigBattery ETHOS
EG4 Batteries

Power Compatibility:

Works with 48V battery systems
Supports grid-tied, hybrid, and off-grid installations
AC coupling compatible for system upgrades and retrofits

Key Features

18,000W PV Input / 12,000W Output – High-capacity power for large residential systems
All-in-One Hybrid Design – Combines inverter, charger, and charge controller
3 MPPT Inputs – Maximizes solar production across multiple array orientations
UPS Functionality (15-30ms) – Seamless backup power during outages
Smart Energy Management – Supports peak shaving, load control, and grid interaction
Transformer-Free Efficiency – Lightweight design with improved performance
Built-In Breakers & Safety – Simplifies installation and enhances protection
Remote Monitoring & Control – Track performance and manage settings from anywhere
User-Friendly LCD Interface – Easy setup and system configuration

A high-performance hybrid inverter built for efficiency, flexibility, and reliable energy control-giving you the power to run your home with confidence.