• Easy Two-Person Installation
  • Extremely Reliable Battery and Scalable
  • One-stop service & 10-Year Warranty
  • High Efficiency PCS
  • Smart Energy Management and Remote System Monitoring


The LG Electronics ESS is a state-of-the-art home energy management system designed for homeowners ready to take control of their home energy usage. The LG ESS is offered in both an AC-coupled and DC-coupled configuration. The 7.6kW DC-coupled solution with an integrated high efficiency PV inverter is well suited for new solar PV + storage installations. The 5kW AC-coupled solution is ideal for customers looking to install an ESS in a home with an existing solar system.

The 7.6kW DC-coupled product offers unparalleled solar + storage performance, allowing homeowners to seamlessly store excess solar energy to power their home both day and night. The 5kW AC-coupled product can be easily added to an existing solar system, offering a reliable and cost-effective way to manage Time of Use (TOU) rates and provide backup power.
Product features include quick and easy installation, a compact and elegant design, and an integrated smart energy management system (EMS). The EMS enables customers to control their electric bill through self-consumption of solar and TOU rate smart scheduling, and includes an off-grid mode to protect the customer’s home in the event of a power outage.

LG Electronics' ESS is available in AC-coupled and CD-coupled configurations. 

<br><br>Easy Two-Person Installation1

Easy Two-Person Installation

All required components included for complete
install; Painless commissioning via Auto Self-Check
<br><br>Extremely Reliable Battery and Scalable1

Extremely Reliable Battery and Scalable

Up to 19.6kWh for longer back-up time;
Compatible with LG Chem RESU 10H
<br><br>One-stop service & 10-Year Warranty1

One-stop service & 10-Year Warranty

ESS can be paired with LG PV modules for a
single provider for all warranty issues
<br><br>High Efficiency PCS1

High Efficiency PCS

Achieving 97.5 CEC Efficiency;
Multi-String & MPPTs for multi-angled roof
<br><br>Smart Energy Management and Remote System Monitoring1

Smart Energy Management and Remote System Monitoring

Emergency Back-up;
24-7 energy monitoring


  • Compatible Battery Pack Size
    9.8 to 19.6 kWh @77°F(25°C ) Max. 2 in parallel
    Rated I/O Power
    5000 W
  • Peak I/O Power (10 sec)
    6000 W
    Acceptable Input Voltage Range
    Charge/DisCharge : 400 ~ 450 V DC / 350 ~ 430 V DC
  • Rated I/O Current
    Max. Charge/Discharge Current : 11.9 A@420 V / 14.3 A@350 V
    Peak I/O Current (10 sec)
    18.9 A@370 V
  • Cycle Efficiency Charging to Discharging (PCS Only)
    Peak > 95 %
    DC Disconnect
  • Fuse Rating
    30 A
    Battery Terminal
    Screw Type


  • Maximum Output Power
    5000 VA
    Grid Voltage Range
    a) 240 V AC +10%/-12%, (L-L) (b) 208 V AC +10%/-12%, (L-L)
  • Maximum AC Current
    24 A AC
    Frequency Range
    57 ~ 63 Hz
  • Power Factor
    Cos phi = 0.85c~0.85i Adjustable
    Harmonics Distortion
    TRD < 3%
  • Grid support compliance
    UL 1741 SA, CA Rule 21, HECO
    RGM *
  • Output Terminal
    Spring Type
    Pure Sin-wave Voltage
  • Peak Output Power (10 sec)
    6000 W
    AC Output Voltage Range
    240 V AC
  • Maximum AC current
    21 A
    Peak AC Current (10 sec)
    25 A
  • Voltage Harmonics Distortion @ 100% Resistor Load
    TRD < 3%
    Crest Factor (Max)
    2.5 @5000W


  • Isolation Level
    Type of Converter
  • Peak Efficiency
    CEC Efficiency
  • RTE
    BAT -> GRID : 98.0% | GRID -> BAT : 98.0%
    Operating Temperature
    -22 °F to 149 °F/ -30 ~ 65 ℃
  • De-rating Start Temp.
    Higher than 113F (45 ℃)
    0 ~95%
  • Maximum Operating Altitude
    3000m above sea level De-rating above 2000m
    Audible Noise
    < 40 dBA @ 1m
  • MTBF
    >500k hrs Calculated Acc. MIL Handbook


  • Dimensions (W x L x H)
    425 X 590 X 150 [mm]
    20 kg/44 lbs
  • Cooling
    Natural Convection
    Enclosure Material
    Aluminum Alloy
  • Installation Type
    Wall Mount, Horizontal support Indoor and Outdoor
    Enclosure Protection
    NEMA Type 4
  • Warranty
    10 years


  • Indicator
    5 LEDs
    Modbus (SunSpec)
  • Ethernet (optional)
    Standard (IPv4, IP6 Supported)
    Human Machine Interface (HMI)
    BLE (Support 4.0 or higher) Settings can be done through APP from Mobile phone
  • Remote Diagnose/Monitoring
    Bi-direction Through Cloud
    Remote Firmware Update
    Through Cloud (Optional)
  • Rapid Shutdown System


  • Energy Meter
    Offered by LG Electronics
    Auto-Transfer Switch
    Offered by LG Electronics


  • Safety Mark
    General Safety
    UL1741, CSA 22.2 No. 107-01
  • Software Safety
    Grounding Fault Detection
    UL1741 CRD, NEC 2014 Article 690.35
  • Anti-islanding Protection
    IEEE1547, IEEE1547.1
    FCC part 15 Class B
  • AFCI
    UL1699B (Type 1), NEC 2014 690.11
    Integrated meter
    ANSI C12.20 (meets 0.5% accuracy)
  • Grid support regulation
    California Rule 21 , HECO Compliant

To access more technical documentation and downloads, please visit the LG B2B Partner Portal.

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LG Enhanced Service Plan (ESP)
LG's Enhanced Service Plan protects your investment by offering extended service coverage provided by LG for commercial displays in the hospitality, healthcare, and digital signage markets. By offering this program, you will enjoy the added peace of mind that comes with knowing your products are protected.
Quick Swap (Advanced Exchange)
Minimizes down time of device and quickly gets the device up and running. LG will provide a return box and prepaid return shipping label for customer to return the unit. Service call for Advanced Exchange must be made by 2pm CST.
a. Next Business Day Exchange / b. 2nd Business Day Delivery
White-Glove Quick Swap (Advanced Exchange)
An LG authorized technician will meet you onsite. Technicians will remove, re-install and return product. Service calls for Advanced Exchange delivery must be made by 2pm CST. a. Next Business Day Exchange / b. 2nd Business Day Delivery

For more information, click here
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