Sol-Ark · Hybrid Inverter
Sol-Ark Limitless 18K-2P-LV Hybrid Inverter
The most powerful residential hybrid inverter on the market.
Built for high-demand homes, the Sol-Ark Limitless 18K delivers 18 kW of continuous output and 36 kW of surge capability — enough to start HVAC systems, well pumps, and large motors. Three MPPTs support up to 28.8 kW of usable PV, 200 A grid passthrough avoids costly service upgrades, and the multifunction GEN port handles generators or AC-coupled solar without additional PCS components.
Key features
- 18 kW continuous output, 36 kW 10s surge
- 3 MPPTs supporting up to 28.8 kW usable PV
- 200 A grid passthrough — no main panel upgrade
- GEN port up to 28.8 kW generator or AC-coupled PV
- Stackable up to 12 units in parallel
- Smart Load control and 2-wire Auto Generator Start
Specifications
- Nominal Real Power (240V)
- 18,000 W
- Peak Surge (10s, off-grid)
- 36,000 W (31,200 W @ 208V)
- Off-Grid Continuous Power
- 18,000 W (15,600 W @ 208V)
- Max PV Input
- 28,800 W usable / 32,400 W STC — 3 MPPTs, 2 strings each
- MPPT Voltage Range
- 150–425 V (500 V max input)
- GEN Port
- 28,800 W AC-coupled or generator, 120 A
- Grid Passthrough
- 200 A continuous
- Nominal AC Voltage
- 120/240 V; 120/208 V
- Efficiency
- 97.6% max / 97.0% CEC
- Transfer Time
- 5 ms
- Battery
- 48 V nominal, 43–59 V, 350 A charge/discharge
- Dimensions / Weight
- 34 × 19.4 × 12 in / 137 lb
- Enclosure
- IP65 / NEMA 3R
- Stacking
- Up to 12 units in parallel
- Warranty
- 10-year standard
Specifications shown for reference. Lumis will confirm final scope and configuration during system design.