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EG4

18kPV 12000W Hybrid Inverter

Inverter

12 kW split-phase hybrid inverter accepting up to 18 kW PV across 3 MPPTs, 97.5% peak efficiency.

Normalized price
$0.41 per watt AC

$4,898 at lowest merchant

Methodology: lowest in-stock merchant price · normalized to nameplate

whole-home or critical-loads battery backup
Outpost editorial pick
The data

Specifications

Output

Type Hybrid
Continuous AC output 12 kW
Surge output 15.5 kW
AC nominal voltage 240 V
AC phases split phase
Peak efficiency 97.5%

PV input

MPPT channels 3
PV voltage range 100–600 V
PV max current 25 A per MPPT
PV max power 18 kW

Battery integration

Battery compatible Yes
Battery voltage range 40–60 V

Backup & UPS

Transfer time 20 ms
Generator input Yes
Pass-through 90 A

Operation

Max parallel units 10
Noise 68 dB
Communications RS-485, Wi-Fi, CAN bus
Enclosure rating NEMA 4X
Operating temp. -25°C to 60°C

Physical

Dimensions 870 × 520 × 285 mm
Weight 55 kg

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Editorial

Best for, watch out for

Best for

  • whole-home or critical-loads battery backup
  • US residential 120/240V split-phase loads
  • arrays with mixed roof orientations or shading
The market

Price history

Price history · last 18 days

Flat

$4,898$4,898May 26 · $4,898

The shortlist

Three alternatives we'd consider

Cheaper

Anker SOLIX E10 Power Module

Anker SOLIX

E10 Power Module

Inverter

9kW · 2 MPPT

9 kW continuous AC hybrid inverter that anchors the SOLIX E10 whole-home backup system. Up to four B6000 batteries dock directly into it; two units parallel for 18 kW.

$1,999 View details →

Pricier

Sol-Ark 15K-2P 15000W Hybrid Inverter

Sol-Ark

15K-2P 15000W Hybrid Inverter

Inverter

15kW · 3 MPPT

15 kW split-phase hybrid inverter accepting up to 19.5 kW PV across 3 MPPTs, 97.5% peak efficiency.

$6,000 View details →

Cheaper

Inverter

Bluetti

AC500 Head Unit

Inverter

5kW · 2 MPPT

Bluetti's modular residential head unit. 5000 W continuous, 240 V split-phase, no integrated battery — pair with one or more B300K modules for capacity.

$2,299 View details →

Common questions

What people ask about the 18kPV 12000W Hybrid Inverter

Does the EG4 18kPV 12000W Hybrid Inverter support battery storage out of the box?
Yes. EG4 18kPV 12000W Hybrid Inverter is hybrid — it has integrated battery management with a 40–60V battery voltage range. Closed-loop BMS partner support varies — confirm the specific battery brand before ordering.
What happens during a grid outage?
EG4 18kPV 12000W Hybrid Inverter switches to battery-backed loads in 20ms when the grid drops — fast enough to keep most home electronics running through the transition. The capacity of the battery (not the inverter) is what determines how long backup lasts.
Does the MPPT count actually matter?
EG4 18kPV 12000W Hybrid Inverter has 3 MPPT channels, which means up to 3 independent strings can run at different operating points. This matters when the panels face different directions (east + west), get different shade patterns through the day, or use different module models. With one MPPT, the weakest string drags the rest. With 3, each can hit its own peak.
Does this need a generator inlet for backup?
EG4 18kPV 12000W Hybrid Inverter accepts a generator AC input directly — wire a 30A or 50A inlet box to the gen-input terminals and the inverter will charge the battery + pass-through loads when fuel is running. This is the cleanest way to add a backup generator without a separate transfer switch.
Documentation

Downloads

Spec sheet2
Manual2
Certification8
Firmware4
Document37

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