EG4 18kPV All-in-One Hybrid Solar Inverter | 18kW PV / 12kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring
EG4 18kPV All-in-One Hybrid Solar Inverter | 18kW PV / 12kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring - Image 2
EG4 18kPV All-in-One Hybrid Solar Inverter | 18kW PV / 12kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring - Image 3
EG4 18kPV All-in-One Hybrid Solar Inverter | 18kW PV / 12kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring - Image 4

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

 

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.

EG4 18kPV All-in-One Hybrid Solar Inverter | 18kW PV / 12kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring

$5,763.00$4,898.00
YOU SAVED: $865.00
SKU# INV024

Choose Your Inverter Option*

EG4 12kPV EG4 18kPV EG4 FlexBOSS18 EG4 FlexBOSS21

Choose Your Battery Option*

BigBattery ETHOS EG4 280Ah All Weather EG4 280Ah Indoor None

Choose Your Inverter Quantity*

Standard

Standard

Large

Large

3 Phase

3 Phase

Choose Your Inverter Option*

EG4 6000XP EG4 12000XP VICTRON MP II 3000 VICTRON MP II 5000

Choose Your Battery Option*

BigBattery NEXUS BigBattery ETHOS BigBattery HUSKY2 INV EG4 280Ah All Weather EG4 280Ah Indoor
SKU: INV024 Categories: ,

Compatible Accessories & Additional Add-ons

EG4 18kpv Inverter - simple system expansion
EG4 18kpv Inverter - UL1741 Certified
power stays on in rain and strorm - EG4 18kpv Inverter
power endures snow - EG4 18kpv Inverter
GridBoss - EG4 18kpv Inverter
EG4 lineup

.

See More On YouTube

Inverter Downloads

SKU#:INV024
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL 1741 Certificate:DownloadDOWNLOAD
UL 1741 CRD PCS Test Verification Of Conformity Security:DownloadDOWNLOAD
Rapid Shut Down Wiring Guide:DownloadDOWNLOAD
Whitepapers, Firmware, & Wiring Diagrams:Go to linkGO TO LINK
CEC Listing – EG4 18kPv:Go to linkGO TO LINK

Inverter Specifications

AC Voltage:120V AC / 240V AC
AC Frequency:50 Hz / 60 Hz
Nominal Voltage:51.2V
Max. Continuous AC Current:50A @ 240V AC
Max. AC Input Power:12000W
Max. AC Bypass:200A
Operating Voltage Range:180 – 270V AC
Output Voltage:120V AC / 240V AC
Max. Continuous Output Current:50A
Output Power:12000W
BMS Cutoff Range:42 – 47V
Surge Capacity (with PV):14700W (10 min) / 15500W (5 min)
Surge Capacity (without PV):13500W (10 min)
Max. Continuous Line Wattage:6000W
Power Factor:0.99 (Full Load)
Reactive Power Adjustment Range:0.8 ~ 0.8 Leading Adjustable
Total Harmonic Distortion:<5% (Full Load)
Transfer Time:10 – 20 ms (Single) / 20 ms (Parallel)
Max. Continuous Output Current:50A
AC Bypass (Generator):90A
Output Voltage:120V AC / 240V AC
Output Power:12000W
Max. Continuous Line Wattage:8000W (per 120V)
Operating Voltage Range:180 – 270V AC
Output Frequency:50 Hz / 60 Hz
Max. Output Power (with PV):14700W (10 min) / 15500W (5 min)
Max. Output Power (without PV):13500W (10 min)
Total Harmonic Distortion Voltage:<5%
Switching Time:10 ms
No. of MPPTs:3
Inputs per MPPT:2 (MPPT 1) / 1 (MPPT 2 & 3)
Max. Input Current:25A (MPPT 1) / 15A (MPPT 2 & 3)
Max. Short Circuit Input Current:31A (MPPT 1) / 19A (MPPT 2 & 3)
DC Input Voltage Range:100 – 600V DC
Start Up Voltage:100V DC
MPPT Operating Voltage Range:140 – 500V DC
MPPT Voltage:360V DC
Max. PV Array Power:18000W
Max. Efficiency:94 – 99.9%
Idle Consumption:~70W (Normal) / ~18W (Standby Mode)
Nominal Voltage:48V DC
Voltage Range:40 – 60V DC
Max. Charge / Discharge Current:250A
Recc. Battery Capacity per Inverter:>200 Ah
Operating / Storage Temperature Range:-13ºF – 140ºF (-25ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity:0 – 100%
Typical Noise Emission:68 dB @ 3 ft
Protection Rating:IP65 / NEMA 4X
Communications:RS485 / CANBus / WiFi
Max. Parallel Connections:10
Weight:121 lbs (55 kg)
Depth:11.2 in (285 mm)
Width:20.5 in (520 mm)
Height:34.3 in (871 mm)

Compare Inverter

10-Year EG4 Manufacturer Warranty

EG4 18kpv Inverter - simple system expansion
EG4 18kpv Inverter - UL1741 Certified
power stays on in rain and strorm - EG4 18kpv Inverter
power endures snow - EG4 18kpv Inverter
GridBoss - EG4 18kpv Inverter
EG4 lineup

.

See More On YouTube

Inverter Downloads

SKU#:INV024
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL 1741 Certificate:DownloadDOWNLOAD
UL 1741 CRD PCS Test Verification Of Conformity Security:DownloadDOWNLOAD
Rapid Shut Down Wiring Guide:DownloadDOWNLOAD
Whitepapers, Firmware, & Wiring Diagrams:Go to linkGO TO LINK
CEC Listing – EG4 18kPv:Go to linkGO TO LINK

Inverter Specifications

AC Voltage:120V AC / 240V AC
AC Frequency:50 Hz / 60 Hz
Nominal Voltage:51.2V
Max. Continuous AC Current:50A @ 240V AC
Max. AC Input Power:12000W
Max. AC Bypass:200A
Operating Voltage Range:180 – 270V AC
Output Voltage:120V AC / 240V AC
Max. Continuous Output Current:50A
Output Power:12000W
BMS Cutoff Range:42 – 47V
Surge Capacity (with PV):14700W (10 min) / 15500W (5 min)
Surge Capacity (without PV):13500W (10 min)
Max. Continuous Line Wattage:6000W
Power Factor:0.99 (Full Load)
Reactive Power Adjustment Range:0.8 ~ 0.8 Leading Adjustable
Total Harmonic Distortion:<5% (Full Load)
Transfer Time:10 – 20 ms (Single) / 20 ms (Parallel)
Max. Continuous Output Current:50A
AC Bypass (Generator):90A
Output Voltage:120V AC / 240V AC
Output Power:12000W
Max. Continuous Line Wattage:8000W (per 120V)
Operating Voltage Range:180 – 270V AC
Output Frequency:50 Hz / 60 Hz
Max. Output Power (with PV):14700W (10 min) / 15500W (5 min)
Max. Output Power (without PV):13500W (10 min)
Total Harmonic Distortion Voltage:<5%
Switching Time:10 ms
No. of MPPTs:3
Inputs per MPPT:2 (MPPT 1) / 1 (MPPT 2 & 3)
Max. Input Current:25A (MPPT 1) / 15A (MPPT 2 & 3)
Max. Short Circuit Input Current:31A (MPPT 1) / 19A (MPPT 2 & 3)
DC Input Voltage Range:100 – 600V DC
Start Up Voltage:100V DC
MPPT Operating Voltage Range:140 – 500V DC
MPPT Voltage:360V DC
Max. PV Array Power:18000W
Max. Efficiency:94 – 99.9%
Idle Consumption:~70W (Normal) / ~18W (Standby Mode)
Nominal Voltage:48V DC
Voltage Range:40 – 60V DC
Max. Charge / Discharge Current:250A
Recc. Battery Capacity per Inverter:>200 Ah
Operating / Storage Temperature Range:-13ºF – 140ºF (-25ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity:0 – 100%
Typical Noise Emission:68 dB @ 3 ft
Protection Rating:IP65 / NEMA 4X
Communications:RS485 / CANBus / WiFi
Max. Parallel Connections:10
Weight:121 lbs (55 kg)
Depth:11.2 in (285 mm)
Width:20.5 in (520 mm)
Height:34.3 in (871 mm)

Compare Inverter

10-Year EG4 Manufacturer Warranty

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