Description
LION ENERGY SANCTUARY 3 – HOME ENERGY STORAGE SYSTEM
Reliable, quiet, high-output whole-home backup power for demanding modern households.
The Lion Energy Sanctuary 3 is a next-generation, grid-interactive home energy storage system engineered for homeowners who need more power, more scalability, and longer runtime. Built with advanced LiFePO₄ battery technology, a powerful 18 kW split-phase inverter, and intelligent energy management, Sanctuary 3 delivers fully automated backup power without fuel, noise, or manual intervention.
Designed for whole-home or high-demand essential-load backup, Sanctuary 3 keeps critical systems running during outages — including HVAC, refrigeration, lighting, internet, medical equipment, and large appliances — while operating silently and requiring virtually no maintenance.
When the grid goes down, Sanctuary 3 responds instantly, seamlessly transitioning your home to battery power. The system is expandable over time, allowing you to scale both inverter output and battery capacity as your energy needs grow.
AUTOMATED HOME BACKUP
Instant, seamless transition to battery power during grid outages — no noise, no fuel, and no manual transfer switching required.
Sanctuary 3 continuously monitors grid conditions and automatically supplies power the moment an outage is detected, ensuring uninterrupted operation of your home.
HIGH-OUTPUT, SCALABLE POWER
Built for higher electrical demand and larger homes.
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18 kW split-phase inverter per unit
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Supports parallel inverter configurations for up to 48 kW total output
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Modular battery expansion up to 171.6 kWh total capacity
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Designed to handle heavy startup loads and continuous high-draw appliances
Whether you’re backing up a large home, estate, or mission-critical loads, Sanctuary 3 provides the headroom and flexibility that smaller systems cannot.
EXPANDABLE ENERGY CAPACITY
Choose a configuration that matches your runtime needs today — and expand later.
Sanctuary 3 uses 14.3 kWh LiFePO₄ battery modules, allowing capacity to scale from a single battery system to large multi-day backup configurations. Batteries and inverters can be added over time without replacing your existing equipment.
SILENT, SAFE LiFePO₄ BATTERY TECHNOLOGY
Long-life lithium iron phosphate chemistry delivers:
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High cycle life
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Enhanced thermal stability
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Improved safety over traditional lithium chemistries
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Quiet, emissions-free operation
Ideal for indoor or outdoor installation.
SOLAR + GENERATOR COMPATIBLE
Sanctuary 3 integrates seamlessly with:
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Solar PV systems
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AC-coupled solar
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Auto-start generators (up to 12 kW per inverter)
This allows you to recharge batteries using solar energy, extend runtime during long outages, or combine multiple energy sources for maximum resilience.
REAL-TIME APP MONITORING
Monitor and manage your energy system from anywhere using the Lion Energy App (mobile & desktop):
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View real-time power flow
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Track battery charge and usage
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Monitor solar production
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Adjust system settings
WHY CHOOSE LION ENERGY SANCTUARY 3
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18 kW inverter architecture (higher output than Sanctuary 2)
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Fully scalable inverter and battery design
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Silent, fuel-free whole-home backup
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Solar, grid, and generator integration
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App-controlled intelligent energy management
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Designed for high-demand households and extended outages

Sanctuary 3 Configurations
Sanctuary 3 – 1×1
(1 Inverter + 1 Battery | 14.3 kWh Total Capacity)
The 1×1 system is ideal for homeowners looking to cover critical loads such as refrigeration, lighting, Wi-Fi, outlets, and select appliances during shorter outages.
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12 kW split-phase inverter
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14.3 kWh lithium iron phosphate battery
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Automatic outage detection and backup
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Expandable as needs grow
Best for: Essential backup, condos, small homes, or first-time battery buyers.
Sanctuary 3 – 1×2
(1 Inverter + 2 Batteries | 28.6 kWh Total Capacity)
The 1×2 configuration doubles runtime and allows for more flexibility with household loads, including longer HVAC runtimes or additional appliances.
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12 kW split-phase inverter
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28.6 kWh total battery capacity
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Greater runtime during extended outages
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Scalable for future expansion
Best for: Medium homes, longer outages, or higher daily energy use.
Sanctuary 3 – 1×3
(1 Inverter + 3 Batteries | 42.9 kWh Total Capacity)
Designed for extended outages, the 1×3 system provides day-plus backup power for essential and comfort loads while maintaining excellent efficiency.
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12 kW split-phase inverter
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42.9 kWh total battery capacity
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Supports longer winter outages
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Quiet, fuel-free operation
Best for: Larger homes, colder climates, and multi-day outage protection.
Sanctuary 3 – 2×4
(2 Inverters + 8 Batteries | 114.4 kWh Total Capacity)
The most powerful standard configuration, the 2×4 system delivers serious whole-home coverage with high output and multi-day runtime. This setup supports heavier loads and longer durations without sacrificing performance.
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24 kW split-phase output (dual inverters)
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114.4 kWh total battery capacity
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Handles large homes and higher demand loads
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Ideal for extended outages or critical operations
Best for: Large homes, estates, off-grid resilience, or mission-critical backup.
IMPORTANT NOTE!
Actual runtime varies based on load profile, weather, and energy usage.

Specifications
TECHNICAL SPECIFICATIONS
Sanctuary™ 3 Energy Storage System (AC ESS)
Multiple-Part ESS: This Energy Storage System (ESS) includes integrated inverters and batteries. System configurations specify the number of inverters and batteries used.
HYBRID INVERTER – SANCTUARY 3 (18kW)
PV INPUT
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Max PV Input Power: 18kW
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MPPT Input Voltage Range: 120–430V
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Max Input Current per MPPT: 16A × 4
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Max Short Circuit Current per MPPT: 22A
AC OUTPUT (ON-GRID)
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Nominal Output Power: 12kW
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Max Apparent Power Output: 13.2kW
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Nominal AC Output Current: 50A
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Max AC Power Output Current: 55A
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Output Voltage: 120/240V Split-Phase
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Grid Frequency: 60Hz
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Max Grid Passthrough: 200A
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Output THD: < 3%
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Maximum Output Fault Current (AC):
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71.1A (1 Cycle)
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97.7A (3 Cycles)
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97.7A (5 Cycles)
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AC OUTPUT (OFF-GRID / EPS)
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Nominal Output Power: 12kW
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Power Factor Range: -0.8 to +0.8
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Nominal Output Current: 50A
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EPS Voltage: 120/240V Split-Phase
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EPS Frequency: 60Hz
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Output THDU: < 2%
BATTERY COMPATIBILITY
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Battery Voltage Range: 40–58V
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Max Charging Current: 250A
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Max Discharging Current: 260A
GENERAL INVERTER DATA
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Dimensions (H × W × D): 51.50” × 18.50” × 10.43”
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Weight: 194 lb
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Max Efficiency: 96.5%
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PV DCAFCI: Type 1
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Rapid Shutdown: Tigo RSS Transmitters (RS2)
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LRA (Locked Rotor Amps): 180A peak
LFP BATTERY – SANCTUARY 3 (14.3 kWh)
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Battery Type: Lithium Iron Phosphate (LiFePO₄)
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Voltage Range: 40–58.4 VDC
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Rated Voltage: 51.2 VDC
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Capacity: 14.3 kWh
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Isc Rating (SCCR): 2040A / 7ms
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Operating Temperature: -4°F to 131°F
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Derate Range: Below 50°F, Above 104°F
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Weight: 290 lb
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Dimensions (H × W × D): 44.91” × 18.50” × 10.43”
*Power may be consumed for battery heating during part of this range.
SYSTEM SPECIFICATIONS
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Max Parallel Inverters: 4
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Max Parallel Batteries: 12
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Max System Parallel Capacity: 171.6 kWh
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Max System Parallel Weight: 4,256 lb
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Max Parallel Output Power (MCDR): 48 kW
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Max Overcurrent Protective Device: 240A
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Max Internal Fault Current Rating: 180A
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Single Cycle Round Trip Efficiency (SCRTE): 89%
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Usable Capacity: 90%
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Battery State of Health (SOH) at End of Warranty: 70%
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Humidity Rating: 0–95%
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Ingress Protection: NEMA 3R / IP65
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Altitude Rating: 0–4,000 m
(Derating above 2,000 m)
GENERATOR / AC-COUPLED PV CONNECTION
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Terminals: L1, L2, N, PE (120/240V split-phase)
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Source: Single source only – generator or AC-coupled solar
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Max Apparent Power: 12 kW per inverter
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Auto-Start: Supported
CERTIFICATIONS & COMPLIANCE
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Sanctuary 3 Inverter (18kW):
UL 1741, UL 1741SB, IEEE 1547:2018, IEEE 1547.1:2020, FCC Part 15 Class B, UL 1699B (Arc-Fault) -
Sanctuary 3 Battery (14.3 kWh):
UL 1973, UL 9540A -
Complete ESS:
UL 9540
