Lion Energy Sanctuary 2 Home Battery Backup & Solar Energy Storage System

Lion Energy Sanctuary 2 Home Battery Backup & Solar Energy Storage System

The Lion Energy Sanctuary 2 is a scalable residential home battery backup and solar energy storage system designed to keep your home powered when the utility grid goes down while giving you greater control over how and when you use stored energy.

Built around Lion Energy's 12kW hybrid inverter and 14.3kWh Lithium Iron Phosphate (LiFePO4/LFP) battery modules, the Sanctuary 2 can be configured for different homes, backup requirements and energy-storage goals.

Choose from four Sanctuary 2 configurations ranging from a 1 inverter + 1 battery 14.3kWh system to a larger 2 inverter + 4 battery 57.2kWh system. This scalable design makes the Sanctuary 2 a strong solution for residential backup power, solar energy storage, hurricane preparedness, whole-home energy management and homes looking to reduce their dependence on utility power.

The Sanctuary 2 operates quietly without the fuel, fumes and engine maintenance associated with a traditional gasoline, diesel or propane generator. Add compatible solar and the system can store solar energy during the day for use later, including during an outage.

Choose Your Lion Sanctuary 2 Configuration

1 Inverter + 1 Battery | 14.3kWh

A compact Sanctuary 2 configuration combining one Lion 12kW hybrid inverter with one 14.3kWh LFP battery.

• Inverters: 1 × Lion 12kW Hybrid Inverter
• Batteries: 1 × Lion 14.3kWh LFP Battery
• Total Battery Capacity: 14.3kWh
• Single-Inverter Rated Power: 12kW
• System Model: Sanctuary ESS 12-14.3
• Approximate System Weight: 400 lbs.

Best For: Essential home backup, refrigerators, lighting, Wi-Fi, outlets, selected household circuits, smaller homes, lower daily energy usage and homeowners who want to begin with a residential solar battery system.

1 Inverter + 2 Batteries | 28.6kWh

Double the battery capacity while retaining the same Lion 12kW hybrid inverter. This configuration provides considerably more stored energy for longer outages and higher household energy consumption.

• Inverters: 1 × Lion 12kW Hybrid Inverter
• Batteries: 2 × Lion 14.3kWh LFP Batteries
• Total Battery Capacity: 28.6kWh
• Single-Inverter Rated Power: 12kW
• System Model: Sanctuary ESS 12-28.6
• Approximate System Weight: 690 lbs.

Best For: Larger essential-load backup systems, longer utility outages, hurricane preparation, higher overnight energy consumption and homeowners wanting greater solar energy storage capacity.

1 Inverter + 3 Batteries | 42.9kWh

The largest published single-inverter Sanctuary 2 configuration combines the 12kW hybrid inverter with three 14.3kWh LFP battery modules for 42.9kWh of total nominal battery storage.

• Inverters: 1 × Lion 12kW Hybrid Inverter
• Batteries: 3 × Lion 14.3kWh LFP Batteries
• Total Battery Capacity: 42.9kWh
• Single-Inverter Rated Power: 12kW
• System Model: Sanctuary ESS 12-42.9
• Approximate System Weight: 980 lbs.

Best For: Extended home backup, hurricane and storm outages, homes with higher daily energy requirements, substantial residential solar installations and customers looking for maximum energy storage with a single Sanctuary 2 inverter.

2 Inverters + 4 Batteries | 57.2kWh

For larger residential applications, Lion Energy's Sanctuary 2 configurator also provides a 2 inverter + 4 battery configuration. Four 14.3kWh Lion LFP battery modules provide 57.2kWh of total nominal battery storage.

• Inverters: 2 × Lion 12kW Hybrid Inverters
• Batteries: 4 × Lion 14.3kWh LFP Batteries
• Total Battery Capacity: 57.2kWh
• Inverter Architecture: Dual 12kW Lion Hybrid Inverters

Best For: Large homes, higher-power residential applications, extended outage protection, substantial solar installations, customers with high monthly electricity usage and homeowners looking for greater battery storage and inverter capability than a single-inverter Sanctuary 2 configuration provides.

Final system design, supported loads, inverter configuration, wiring and installation requirements must be determined according to Lion Energy installation requirements and applicable electrical codes.

Automatic Home Backup Power

Power outages can happen without warning. The Lion Sanctuary 2 is designed to detect a grid outage and provide stored battery energy to configured backup loads so important parts of your home can continue operating.

Depending on system sizing and installation, backup loads may include refrigerators, lights, Wi-Fi and networking equipment, household outlets, heating equipment and other essential circuits.

Your actual backup runtime depends on the Sanctuary 2 configuration selected, battery state of charge and the amount of electricity your home is consuming during the outage.

Residential Solar Battery Storage

The Sanctuary 2 isn't limited to emergency backup. It can become the energy-storage center of a residential solar system by storing electricity generated by compatible solar panels for use later.

Instead of sending all excess solar production away when it is generated, battery storage lets homeowners retain energy for nighttime use, peak utility-rate periods or power outages.

The Lion 12kW hybrid inverter supports up to 12kW of PV input with an MPPT input voltage range of 120V to 500V.

12kW Hybrid Inverter

Each Lion Sanctuary 2 inverter is rated at 12kW and designed for 120/240V split-phase residential electrical systems.

This makes the Sanctuary 2 suitable for professionally designed U.S. residential backup and solar-storage applications requiring both 120V and 240V service.

The inverter supports up to 100A of grid passthrough and provides a maximum inverter efficiency rating of 97.8%.

14.3kWh Lithium Iron Phosphate Battery Modules

Each Sanctuary 2 battery module uses Lithium Iron Phosphate (LiFePO4/LFP) battery chemistry and provides 14.3kWh of nominal energy storage.

LFP battery chemistry is well suited to stationary residential energy storage because it offers excellent thermal stability and is designed for repeated charging and discharging.

The battery has a rated voltage of 51.2VDC and operates across a specified 40V to 58.4VDC voltage range.

Generator Support for Extended Outages

The Sanctuary 2 provides additional flexibility for extended outages through the inverter's generator / AC-coupled PV connection.

Generator auto-start is supported, allowing a properly designed Sanctuary installation to incorporate a compatible generator as an additional energy source.

This can be particularly useful during multi-day utility outages when solar production alone may not provide enough energy to replenish the battery system.

Home Energy Management

The Sanctuary system allows homeowners to monitor system performance, manage battery settings and gain greater visibility into energy consumption using Lion Energy's monitoring platform.

That means the system can serve two purposes: emergency residential backup when utility power fails and everyday energy management when the grid is operating normally.

Why Choose the Lion Energy Sanctuary 2?

• Scalable Residential Energy Storage: Available in configurations from 14.3kWh to 57.2kWh of total nominal battery capacity.
• 12kW Hybrid Inverter: Powerful residential inverter platform designed for solar, battery and grid integration.
• 120/240V Split-Phase: Designed around common U.S. residential electrical service.
• LFP Battery Chemistry: Lithium Iron Phosphate battery technology for stationary home energy storage.
• Solar Ready: Supports substantial residential PV input.
• Automatic Backup: Designed to provide stored battery energy when grid power is interrupted.
• Generator Integration: Supports compatible generator input and generator auto-start.
• Quiet Backup Power: Battery operation does not require a running combustion engine.
• No Fuel Required for Battery Operation: Stored electricity powers your loads without gasoline, propane or diesel.
• Expandable System: Choose a configuration that better matches your home's energy usage and desired backup duration.
• Smart Energy Management: Monitor energy and battery performance through Lion's monitoring system.
• Outdoor-Rated Components: Sanctuary 2 specifications include Type 3R / IP65 inverter protection.

Best Uses for the Lion Sanctuary 2

• Residential whole-home battery backup
• Essential-load home backup
• Residential solar battery storage
• Home solar generator applications
• Hurricane and tropical storm preparation
• Extended utility outage protection
• Grid outage backup power
• Solar-plus-storage systems
• Time-of-use energy management
• Reducing dependence on utility electricity
• Quiet backup power for residential neighborhoods
• Homes requiring 120V and 240V backup capability
• Generator-supported battery backup systems
• Large residential energy storage installations

Sanctuary 2 System Configuration Specifications

Lion 12kW Hybrid Inverter Specifications

Lion 14.3kWh LFP Battery Specifications

Single-Inverter Sanctuary 2 System Weights

Compliance & Certifications

12kW Hybrid Inverter

UL9540, UL1741:2021, UL1741 SB:2021, UL1741 SA:2018, UL1699B:2018, IEEE Std 1547:2018, IEEE Std 1547a:2020, IEEE Std 1547.1:2020, CPUC Rule 21:2017 and FCC 15 Class B.

Lion LFP Battery

UL1973, UL9540 and UL9540A.

What's Included

1 Inverter + 1 Battery | 14.3kWh

• 1 × Lion Sanctuary 2 12kW Hybrid Inverter
• 1 × Lion 14.3kWh LFP Battery Module

1 Inverter + 2 Batteries | 28.6kWh

• 1 × Lion Sanctuary 2 12kW Hybrid Inverter
• 2 × Lion 14.3kWh LFP Battery Modules

1 Inverter + 3 Batteries | 42.9kWh

• 1 × Lion Sanctuary 2 12kW Hybrid Inverter
• 3 × Lion 14.3kWh LFP Battery Modules

2 Inverters + 4 Batteries | 57.2kWh

• 2 × Lion Sanctuary 2 12kW Hybrid Inverters
• 4 × Lion 14.3kWh LFP Battery Modules

Important: Installation is not included unless specifically stated otherwise. Additional electrical equipment, disconnects, wiring, breakers, mounting hardware, solar equipment and other balance-of-system components may be required depending on the installation. Final equipment requirements should be determined by the qualified installer and Lion Energy installation documentation.

Installation Requirements

The Lion Sanctuary 2 is a permanently installed residential energy storage system. Installation should be completed by qualified professionals in accordance with Lion Energy requirements, local permitting requirements and applicable electrical codes.

Important Installation Requirement: Lion Energy specifies that Sanctuary 2 equipment should be installed in a shaded location and not in direct sunlight.

Lion Energy Sanctuary 2 FAQ

What is the Lion Energy Sanctuary 2?

The Sanctuary 2 is a residential home battery backup and solar energy storage system built around Lion Energy's 12kW hybrid inverter and 14.3kWh Lithium Iron Phosphate battery modules.

What Sanctuary 2 configurations are available?

Lion Energy's current Sanctuary 2 configurator provides four standard choices: 1 inverter + 1 battery, 1 inverter + 2 batteries, 1 inverter + 3 batteries and 2 inverters + 4 batteries.

How much battery capacity does the Sanctuary 2 provide?

Depending on the selected configuration, total nominal battery capacity is 14.3kWh, 28.6kWh, 42.9kWh or 57.2kWh.

What is the difference between the 1x1, 1x2, 1x3 and 2x4 configurations?

The first number refers to the number of inverters and the second number refers to the number of battery modules. For example, 1x3 uses one inverter and three batteries, while 2x4 uses two inverters and four batteries.

Can the Lion Sanctuary 2 provide whole-home backup?

The Sanctuary 2 can be designed for whole-home or selected-load residential backup applications. Exactly which appliances and circuits can be supported depends on the system configuration, electrical loads, battery capacity and installation design.

Does the Sanctuary 2 work during a power outage?

Yes. The Sanctuary system is designed to detect a grid outage and supply stored battery energy to configured backup loads.

Can the Lion Sanctuary 2 be used with solar panels?

Yes. The 12kW hybrid inverter supports solar PV input and is designed for solar-plus-storage applications.

How much solar input does the Sanctuary 2 inverter support?

Each Lion 12kW hybrid inverter is specified for up to 12kW of PV input with an MPPT input voltage range of 120V to 500V. Final array sizing must comply with all inverter electrical limits.

Can the Sanctuary 2 charge from the utility grid?

Yes. The Sanctuary 2 uses a grid-support interactive hybrid inverter and can be incorporated into a grid-connected residential energy storage installation.

Can a generator be connected to the Lion Sanctuary 2?

Yes. The inverter supports a generator / AC-coupled PV connection and generator auto-start. Lion specifies that the connection accepts a single source — either generator or AC-coupled solar.

Does the Sanctuary 2 provide 120V and 240V power?

Yes. The Lion hybrid inverter is designed around 120/240V split-phase residential power.

What battery chemistry does the Sanctuary 2 use?

The Sanctuary 2 uses Lithium Iron Phosphate, also known as LiFePO4 or LFP, battery chemistry.

How large is each battery?

Each Lion LFP battery module provides 14.3kWh of nominal storage capacity and measures approximately 44.4 inches high × 18.50 inches wide × 9.75 inches deep.

How much does each battery weigh?

Each 14.3kWh battery module weighs approximately 290 lbs.

How large is the inverter?

The 12kW hybrid inverter measures approximately 33.6 inches high × 18.50 inches wide × 10.08 inches deep and weighs approximately 110 lbs.

Is the Sanctuary 2 good for hurricane backup?

Yes. Its combination of automatic battery backup, expandable energy storage, solar integration and optional generator integration makes the Sanctuary 2 well suited to homes in areas where hurricanes and extended utility outages are a concern.

Is the Lion Sanctuary 2 a solar generator?

The Sanctuary 2 provides the solar charging, battery storage and backup-power functions many homeowners are looking for when searching for a whole-home solar generator. Unlike a portable solar generator, however, the Sanctuary 2 is a permanently installed residential energy storage system.

Does a Sanctuary 2 require gasoline, diesel or propane?

No fuel is required when operating from stored battery energy. A compatible generator can optionally be incorporated into the system as an additional energy source for extended outages.

Does the Sanctuary 2 require professional installation?

Yes. The Sanctuary 2 is a permanently installed residential energy storage system and should be installed by qualified professionals in accordance with Lion Energy requirements and applicable electrical codes.

Can the Sanctuary 2 be installed outdoors?

The Sanctuary 2 technical specifications list the inverter as Type 3R / IP65. Lion Energy also specifically instructs installers to place the system in a shaded location and not in direct sunlight. Final installation location must meet all Lion Energy and local code requirements.

How do I know which Sanctuary 2 configuration I need?

The correct configuration depends on your home's energy consumption, the circuits and appliances you want to back up, desired runtime, solar capacity and whether you need additional inverter capability. Contact AllPro Generators for help selecting the Sanctuary 2 configuration that best fits your home backup needs.

Need Help Choosing a Lion Sanctuary 2?

Choosing the right residential battery backup system involves more than comparing battery capacity. Your home's peak electrical demand, daily kWh consumption, 120V and 240V loads, desired outage runtime, solar array and generator integration can all affect system sizing.

Contact AllPro Generators for help comparing the 14.3kWh, 28.6kWh, 42.9kWh and 57.2kWh Lion Sanctuary 2 configurations and selecting the right residential home backup and solar energy storage system for your application.