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Lion Energy Sanctuary 3 Energy Storage System (AC ESS)

Authorized Lion Energy Dealer | Full Vendor Warranty Included

4.6/5 Based on 2,000+ Online Orders

Original price was: $15,399.00.Current price is: $13,298.00.

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Description

Description

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)

Battery Type: Lithium Iron Phosphate (LiFePO₄)
Rated Voltage: 51.2VDC
Voltage Range: 40–58.4VDC
Capacity: 14.3kWh
Operating Temperature (Charge): 32°F to 113°F
Operating Temperature (Discharge): -4°F to 140°F
Derating: Below 50°F, Above 104°F
Dimensions: 44.91″ × 18.50″ × 10.43″
Weight: 290 lbs
Lion Energy Sanctuary 3 ESS Spec Sheet
Lion Energy Sanctuary 3 ESS Installation Guide

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

Frequently Asked Questions

Do you offer free shipping?

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote.

How fast will my order arrive?

Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.

What's your return policy?

We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.

Can I talk to someone if I have product questions?

Absolutely! Our in-house product experts are here to help. Live chat or call us at 513-743-2829 for personalized advice before or after your purchase.

Do your products come with a warranty?

Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.

Are your products authentic and brand new?

Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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