Lion Energy Sanctuary 3 Energy Storage System (AC ESS)

$13,298.00
$13,298.00
$15,399.00
Sold Out
Best Price Promise Found an eligible lower retail price? We'll match it.
Your order qualifies for FREEexpedited shipping
Free Returns Eligible items in the contiguous U.S. 60-day return policy.
Earn 13298 points with this purchase GCA Rewards ›

Lion Energy Sanctuary 3 Energy Storage System (AC ESS)

The Sanctuary 3 Energy Storage System is a powerful, quiet, and fully automated whole-home backup solution designed for modern, high-demand households. With an 18kW grid-interactive inverter and advanced LiFePO₄ battery technology, it delivers seamless power during outages without fuel, noise, or manual switching. Built to scale, Sanctuary 3 grows with your energy needs, offering long runtime, high output, and intelligent energy management.

Features

  • Whole-home backup power with instant automatic switchover
  • Silent operation with no fuel or emissions
  • High-output 18kW split-phase inverter
  • Scalable inverter and battery expansion
  • Supports HVAC, large appliances, and critical loads
  • Advanced LiFePO₄ battery technology
  • Grid-interactive with generator and AC-coupled solar support
  • Designed for indoor or outdoor shaded installation
  • Low maintenance, long service life

Specifications

System

  • Max Parallelable Inverters: 4
  • Max Parallelable Batteries: 15
  • Max Parallelable Output Power: 48kW
  • Max System Capacity: 215.6kWh
  • Max System Weight: 4,225 lbs
  • Max Parallelable Circuit Protective Device: 240A
  • Usable Capacity: 80%
  • Single Cycle Round Trip Efficiency (SCRTE): 89%
  • Battery State of Health at End of Warranty: 70%
  • Humidity Rating: 0–95%
  • Altitude Rating: 0–4,000m, derating above 2,000m
  • Ingress Protection: NEMA 3R, IP65
  • Max Internal Fault Current Rating: 1,800A

Inverter – Sanctuary 3 (18kW Grid-Interactive)

  • Rated Power (On-Grid): 18kW
  • Max Apparent Power: 19.8kVA
  • Nominal AC Output Current: 75A
  • Max AC Output Current: 82.5A
  • Output Voltage: 120 / 240V split-phase
  • Grid Frequency: 60Hz
  • Max Grid Pass-Through: 200A
  • Off-Grid Output Power: 12kW
  • Power Factor Range: 0.8–1
  • Output THD: <2%
  • Maximum Output Fault Current: 71.3A (1 cycle), 724A (5 cycles)
  • PV Input Power: 18kW
  • MPPT Voltage Range: 120–430V
  • Max PV Input Voltage: 600V
  • Max Short Circuit Current per MPPT: 22A
  • Battery Voltage Range: 40–58.4V
  • Max Charging Current: 250A
  • Max Discharging Current: 260A
  • Max Efficiency: 96.5%
  • Rapid Shutdown: Tigo RSS Transmitter
  • Arc Fault Protection: AFCI, PV DC Arc
  • Dimensions: 51.5" × 19.5" × 10.43"
  • Weight: 184 lbs

Battery – Sanctuary 3 (14.3kWh)

Certifications & Compliance

  • ESS System: UL 9540
  • Inverter: UL 1741, UL 1741 SB, IEEE 1547-2018, IEEE 1547.1-2020, FCC Part 15 Class B, UL 1699B
  • Battery: UL 1973, UL 9540A

Other Details

  • Supports generator or AC-coupled solar connection, single source only
  • Auto-start generator functionality supported
  • Install in shaded, well-ventilated locations only
  • High-voltage system, electric shock risk
  • Capacitors retain hazardous energy, do not touch
  • Read all instructions before installation, operation, or maintenance