Li.ON ESS – Innovative & Unique Product for Energy Storage Applications

Li.ON ESS – Innovative & Unique Product for Energy Storage Applications
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  • Li.ON ESS – Innovative & Unique Product for Energy Storage Applications
  • Li.ON ESS – Innovative & Unique Product for Energy Storage Applications

    In a world where clean energy has become of utmost importance, Battery Energy Storage Systemsbecome an absolute necessity.

    Towards a sustainable transition to green electrification, Sunlight Group offers a new Lithium-based Energy Storage System, Li.ON ESS. All new, with a never before seen efficiency Li.ON ESS is capable to support applications ranging from household, to industrial up to complete grid-supporting storage solutions. It is supported by our GLocal cloud for reaching, monitoring, and offering maintenance even in the most remote installations.

    Li.ON ESS is the most Innovative & Unique product for ​Energy Storage Applications. It is made to offer high added value experience to users in terms of:

    • Product: Industrial & Modular Design
    • Bi-Directional Communication / BMS / GLocal: Continuous ControlOperation Status, Feedback Generation
    • Remote Service Capabilities: Easy Maintenance – Massive Cost Savings
    • Performance:  Unique Features & Safety

    Why to choose Sunlight ​for your :

    A major manufacturer in industrial batteries, with representatives in more than 100 countries worldwide!

    • 20 years of experience in Lithium Chemistry
    • Modular, expandable storage solutions of 5kWh up to 200kWh
    • Compatible with a wide range of inverters
    • Equipped with GLocal, Sunlight’s Cloud System for 24/7 battery monitoring remotely via PC, mobile, tablet
    • Notification, warnings, and alarms are sent directly to Clients and Sunlight Group
    • Sunlight Group is the first company to offer bi-directional communication over GLocal cloud, allowing for remote maintenance, diagnosis & debugging, eliminating downtime to absolute minimum
    • Ideal for remote off-grid installations with the unique technology of module remote disconnection in case of failure without interrupting the battery operation. Crucial for remote installations with low accessibility
    • Avoid the need for personnel on-site and massive cost and time savings due to remote maintenance & continuous control capability
    • Unprecedented battery service life due to active balancing BMS

    Sunlight Li.ON ESS Client Satisfaction Approach:

    • Provision of extensive technical training to all people in any place by Sunlight Group & customer service
    • Offering of 24/7 remote technical support
    • Fast service provision & modules stock availability at customer’s premises for immediate reaction in case of a potential malfunction
    • Module remote disconnection in case of failure without interrupting the battery operation

    Availability 24/7

    High safety standards

    Maintenance free

    Modular design

    • Maximum safety
    • Full monitoring and balancing per cell
    • Robust construction
    • Serviceability

    Battery Housing

    • Standard 19” modules
    • Cabinet installation
    • Easy expansion
    • Flexibility on special demands

    Battery Interface

    • On-board State of Charge display
    • Single power-ON button
    • Wi-Fi connectivity to GLocal
    • Serviceability even in remote installations through GLocal



    BMS Battery’s DNA

    Battery Management System Functions


    • Overcharging
    • Deep discharge
    • Overcurrent
    • Temperature
    • Short circuit
    • High current fuses (module and battery level)


    • State of Charge SoC,
    • State of Health (SoH) calculation
    • Internal Resistance
    • Errors/warnings indication
    • Event logging
    • Data logger


    • Balancing function per single cell
    • High roundtrip efficiency


    • Continuous monitoring of all crucial parameters (current, temperature, voltage etc.)


    • State of Charge (SoC) & status indication
    • External touch screen display (optional)
    • Communication with inverter


    • BMS certified according to directives: EMC, EMI, RED
    • Designed according to IEC 61508

    Active balancing method

    GLocal Battery Intelligence

    Βi-directional communication


    • Battery monitoring
    • Safety
    • Maintenance diagnosis
    • First level maintenance
    • e-mail with warning messages
    • Identification of warning messages
    • Communication in 3 access levels | Sunlight – Supplier – Owner/User


    • Innovation
    • Performance
    • Evolution
    • Quality
    • Reliability

    Used by

    • Solar and Wind Power installations
    • Smart Home, Smart Buildings
    • Smart Industry, Smart Business
    • Data Centers
    • Remote Telecommunication Applications
    • E-Mobility Charging Facilities


    For the benefit of

    • Peak Shaving

    Energy transferred to off peak hours -> Energy Management Optimization

    • Self consumption

    Disassociation from utility grid and energy cost variations

    • Uninterrupted power supply

    Backup power

    • Off-Grid

    Reliable power supply in case of no or unstable connection to the grid

    • Sustainable reduction of CO2 emissions



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