Powerful Hybrid Solar Inverter for Whole-Home Backup & Energy Independence

The EG4 18kPV Hybrid Inverter combines off-grid capability, whole-home backup power, and grid-tied flexibility into one powerful all-in-one energy solution. Designed to help homeowners take control of their energy usage, this inverter delivers up to 12,000W of continuous output power while supporting up to 21,000W of recommended solar input. Whether you're looking for reliable backup power during outages, lower energy bills, or greater energy independence, the EG4 18kPV is built to deliver dependable long-term performance.

Key Benefits

• All-in-One Hybrid Design – Combines solar power management, battery charging, and inverter functionality into one streamlined system.
• Whole-Home Backup Capability – Provides powerful 120/240V split-phase output capable of supporting essential household loads and larger home energy systems.
• High Solar Input Capacity – Supports up to 21,000W of recommended solar input to maximize solar production and energy savings.
• Works On or Off the Grid – Operates as a grid-tied, grid-assist, or fully off-grid system depending on your energy needs.
• Expandable System Design – Parallel up to 10 units for larger residential or commercial energy storage systems.
• Smart Energy Management – Seamlessly manages solar, battery storage, and utility power to help maximize efficiency and backup protection.
• Remote Monitoring & Control – Monitor system performance, adjust settings, and update firmware remotely using the EG4 app and monitoring platform.
• Outdoor-Rated Durability – NEMA 4X / IP65 rated for indoor or outdoor installations in a wide range of environments.
• Battery Compatibility – Supports communication with EG4 48V batteries and select 48V compatible lithium battery brands.
• Built for Long-Term Reliability – Certified to meet major electrical and safety standards for dependable everyday operation.

Use Cases

Ideal for whole-home backup systems, off-grid homes, cabins, workshops, RV properties, agricultural buildings, and homeowners looking to reduce grid dependence while maintaining reliable everyday power.

Tech Specs

• Rated Output Power: 12,000W
• Recommended PV Input: 21,000W
• Max PV Input Voltage: 600VDC
• Battery Voltage: 48VDC
• Output Voltage: 120/240V Split Phase
• Max Charging Current: 250A
• Number of MPPTs: 3
• Paralleling Capability: Up to 10 Units
• Enclosure Rating: NEMA 4X / IP65
• Communication Options: Wi-Fi, EG4 Monitor Platform

Installer Note: If you’ve purchased an EG4 18kPV through Signature Solar, use the customer code “Signature” when setting up the monitoring system.