Fox ESS EPS BOX Installation Terms and Conditions | Glow Green

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Last Updated: 13th November 2026

FOX ESS EPS BOX INSTALLATION TERMS AND CONDITIONS

These terms and conditions refer to the Fox ESS EPS Box Installation only. The relevant terms and conditions for all renewables installations please refer to the terms and conditions located here: https://glowgreenltd.com/terms-and-conditions/renewables

  1. DEFINITIONS AND INTERPRETATION

    1. In these Terms and Conditions:
      1. "Agreement" / "Contract" means the contract between the Customer and Glow Green Ltd comprising the Quotation, these Terms and Conditions, and any supplementary schedules.
      2. "Company", "We", "Us", or "Our" means Glow Green Limited.
      3. "Customer", "You", or "Your" means the person(s), firm, or organisation named on the Quotation purchasing Goods or Installation services.
      4. "Fox ESS EPS BOX" means the Fox ESS EPS BOX-Single Phase Backup Box, associated changeover equipment, and internal controls supplied to facilitate emergency power supply operations.
      5. "Earth Rod" / "Earth Electrode" means the dedicated copper/bonded steel electrode, inspection pit/housing, and isolated earthing conductor driven into the ground to provide a stable TT earthing reference during island mode.
      6. "Existing Circuits" means all domestic electrical wiring, consumer units, distribution boards, protective devices (MCBs/RCDs/RCBOs), sub-circuits, ring mains, lighting circuits, switches, sockets, and bonding present at the Property prior to Installation.
      7. "Installation" means the physical mounting, wiring, grid/inverter termination, and commissioning of the Fox ESS EPS BOX by Glow Green.
      8. "Property" / "Premises" means the customer site or premises identified in the Quotation where works are performed.

  2. SCOPE OF WORKS (WHAT IS INCLUDED & WHAT IS NOT INCLUDED)

    1. What Is Included:
      1. The supply and physical installation of the Fox ESS EPS BOX-Single Phase Backup Box;
      2. Connection of the incoming utility Grid supply and the supplied Glow Green inverter to the Fox ESS EPS BOX;
      3. Testing, verification, and commissioning of the Fox ESS EPS BOX switching and islanding functionality;
      4. Installation and testing of a dedicated Earth Rod connected directly to the Fox ESS EPS BOX (subject to ground suitability under Clause 4).
    2. What Is Not Included (Strict Exclusions):
      1. No Connection of Existing Circuits: Glow Green engineers will not wire, connect, split, or migrate any existing domestic electrical circuits, consumer units, or distribution sub-boards into the Fox ESS EPS BOX load terminals.
      2. No Cabling Upgrades: Upgrading, replacing, or adapting any existing household cabling, incoming service tails, or distribution equipment to facilitate the connection of the Fox ESS EPS BOX is excluded.
      3. No Connection of Existing Inverters: The connection, integration, or commissioning of any pre-existing or third-party inverters to the Fox ESS EPS BOX is strictly excluded.
      4. Downstream Connections: The connection of any household circuits, backup consumer units, or essential loads to the load side of the Fox ESS EPS BOX is the sole responsibility and cost of the Customer, to be completed by an independent, qualified electrical contractor.

  3. LIABILITY DISCLAIMER & INDEMNITY

    1. Existing Circuits & Pre-Existing Infrastructure: Glow Green accepts no liability, responsibility, or duty of care whatsoever for the safety, integrity, compliance, insulation resistance, or operation of the Customer's Existing Circuits, existing consumer units, or pre-existing earthing/bonding systems.
    2. Downstream Connections: Glow Green accepts no liability for any circuits, appliances, or sub-boards subsequently wired or connected into the Fox ESS EPS BOX by the Customer or any third-party electrician.
    3. Loss or Damage: Glow Green shall not be liable for any direct, indirect, or consequential loss, damage, electrical fire, component failure, or system tripping resulting from:
      1. Incorrect, non-compliant, or third-party installation or wiring into the Fox ESS EPS BOX;
      2. Overloading the EPS circuit beyond the maximum rated inverter limits specified in Clause 5;
      3. Imbalanced, short-circuited, or faulty existing household circuits.

  4. EARTH ROD REQUIREMENTS & SITE SUITABILITY

    1. Purpose & Regulatory Standard: During a utility power outage, the Property cannot rely upon the Distribution Network Operator’s (DNO) TN-C-S / PME earthing terminal. In accordance with BS 7671 (IET Wiring Regulations), an independent Earth Rod must be driven deep into the ground (typically 1.2 to 2.4 metres or more) to establish a dedicated TT earthing system for the emergency supply.
    2. Site Feasibility & Underground Obstructions:
      1. The Earth Rod must be installed in close proximity to the electricity supply, while maintaining safe clearance from buried utilities and obstructions.
      2. Driving an earth rod presents severe hazards if unexposed gas pipes, water mains, high-voltage incoming cables, or fibre-optic lines are buried beneath lawns, driveways, or exterior boundaries. Safe clearance must also be maintained from neighbouring property services and nearby public street infrastructure (e.g., street lights).
      3. Properties such as terraced houses, semi-detached properties with paved frontages, apartments, or homes with extensive concrete/tarmac surfaces frequently cannot accommodate a compliant Earth Rod.
    3. Remote Survey Disclaimer & Removal from Contract: Because Glow Green completes remote assessments rather than intrusive physical on-site ground surveys, the installation of an Earth Rod may be deemed unviable or hazardous by the attending engineer on the day of installation. Where an Earth Rod cannot safely or compliantly be installed:
      1. The Earth Rod and associated installation scope will be removed from the Contract;
      2. The customer charge for the Earth Rod will be credited/refunded accordingly;
      3. The emergency backup (EPS) feature will not be commissioned in off-grid mode until a compliant earthing arrangement is independently established.

  5. MAXIMUM EPS OUTPUT RATINGS & LOAD CONSTRAINTS

    1. Inverter-Dependent Output: The total load connected to the Fox ESS EPS BOX must never exceed the continuous or peak capacity of the connected inverter model. Exceeding these limits will cause automatic shutdown, inverter fault locking, or damage.
    2. Fox ESS H1-G2 Series (Single-Phase 3.0 kW – 6.0 kW):
    ModelMax. EPS Power [VA]Peak EPS Power (60s) [VA/W]Max. EPS Current [A]Rated Voltage / FreqSwitch Time
    H1-3.0-E-G23,000 VA3,600 VA13.6 A220/230/240 V, 50/60 Hz< 20 ms
    H1-3.7-E-G23,680 VA4,400 VA16.7 A220/230/240 V, 50/60 Hz< 20 ms
    H1-4.6-E-G24,600 VA5,500 VA20.9 A220/230/240 V, 50/60 Hz< 20 ms
    H1-5.0-E-G25,000 VA6,000 VA22.7 A220/230/240 V, 50/60 Hz< 20 ms
    H1-6.0-E-G26,000 VA7,200 VA27.3 A220/230/240 V, 50/60 Hz< 20 ms
    1. 5.3 Fox ESS KH Series (High-Capacity 7.0 kW – 10.5 kW):
    ModelMax. EPS Power [VA]Peak EPS Power (60s) [W]Max. EPS Current [A]Rated Voltage / FreqSwitch Time
    KH77,000 VA10,000 W31.8 A220/230/240 V, 50/60 Hz< 20 ms
    KH88,000 VA10,000 W36.4 A220/230/240 V, 50/60 Hz< 20 ms
    KH9 / KH9.99,000 VA12,000 W40.9 A220/230/240 V, 50/60 Hz< 20 ms
    KH1010,000 VA12,000 W45.5 A220/230/240 V, 50/60 Hz< 20 ms
    KH10.510,500 VA12,000 W47.7 A220/230/240 V, 50/60 Hz< 20 ms

  6. WARRANTIES, WORKMANSHIP & GENERAL CLAUSES

    1. Workmanship Guarantee: Glow Green provides a standard 3-year workmanship guarantee covering direct physical installation defects arising strictly from the works carried out by Glow Green engineers.
    2. Governing Law & Variations: This Agreement is governed by English Law and the parties submit to the exclusive jurisdiction of the Courts of England. No variation of these terms shall be effective unless agreed in writing by both parties.