Energy2

Date Generated: 1st January 2026

Web: energy2.co.uk

Terms and Conditions of Sale and Installation

Domestic Battery Energy Storage Systems

Ref: Energy2 Ltd Terms and Conditions v 4 (Pilot Series)

1. Definitions

In this document, the following words shall have the following meanings:

  • "Company": Refers to Energy2 Ltd, registered in England with company number 136685568 of Fourthtime, Grubbins Lane, Speen, Buckinghamshire, HP27 0SH.
  • "Customer": The person or entity who purchases the Goods and Services from the Company for domestic use.
  • "Goods": All battery energy storage systems, inverters, cables, and other equipment supplied by the Company.
  • "Battery Pack": The Energy2 lithium iron phosphate (LFP) battery, including housing, Battery Management System (BMS), and lights, as specified in the Quotation.
  • "Services": The installation, commissioning, and testing of the Goods at the Premises.
  • "Premises": The location where the installation is to take place.
  • "Contract": The agreement between the Customer and the Company for the supply and installation of Goods.
  • "MCS": The Microgeneration Certification Scheme.
  • "Quotation": The written proposal provided by the Company to the Customer.

2. Quotations and Orders

2.1. All Quotations are valid for a period of 30 days from the date of issue. 2.2. A Contract is formed when the Customer accepts the Quotation in writing and pays the required Deposit. 2.3. All prices, dimensions, specifications, and descriptions given in the Quotation and accompanying literature are indicative only and may be subject to change without notice. Standard Quotation templates may reference items (e.g., Solar Panels) for completeness; these only apply if specifically itemized in your cost breakdown. The Company reserves the right to substitute quoted materials for equal approved materials due to shortages. 2.4. Clarifications & Exclusions: Unless specifically stated, the Quotation does not include: * Provision of scaffolding or on-site storage. * Protection of equipment while stored on site or after installation. * Costs resulting from encountering asbestos. * Costs of, or works leading from, structural surveys. * Decorating work or repairs to plastering/tiling.

3. Your Right to Cancel (Cooling-Off Period)

3.1. In accordance with the Consumer Contracts Regulations 2013, you have the right to cancel this Contract within 14 days without giving any reason. 3.2. To exercise this right, you must inform us by a clear statement (e.g., email or letter). 3.3. If you request installation to commence during the cooling-off period and subsequently cancel, you will be liable for reasonable costs for work done.

4. Price and Payment

4.1. The Price is stated in the Quotation. 4.2. Payment Schedule: * Deposit: 25% of the total Contract price to secure the order (Insurance Backed). * Advance Payment: 25% due prior to the delivery of goods / commencement of works. * Final Balance: 50% due immediately upon satisfactory commissioning. 4.3. Title: Title to the Goods shall not pass to the Customer until the Company has received payment in full.

5. DNO Approval

5.1. All installations are subject to Distribution Network Operator (DNO) approval. 5.2. The approval process typically takes up to 45 working days. 5.3. An installation completion date will be confirmed only once DNO approval is granted.

6. Site Survey and Installation

6.1. MCS Compliance: Installations are carried out in accordance with MCS Standard MIS 3012. 6.2. Schedule: Installation generally takes place 0800-1700, Mon-Fri. 6.3. Customer Obligations: Provide safe access, free use of electricity/water, and a suitable environment. 6.4. Delays: The Company is not liable for delays caused by force majeure or supply chain disruptions.

7. Supplementary Terms for Stationary Energy Storage Systems (Pilot Series)

7.1 Product Classification and Nature of Goods

  • Pilot Series Definition: The Customer acknowledges that the Energy Storage System ("the Product") is supplied as part of a "Small Production Run" or "Pilot Series." The Product incorporates bespoke, UK-assembled components and firmware that may be subject to rapid iteration and development.
  • Updates & Upgrades: The Company warrants the Product against defects as per the Warranty. However, the Customer acknowledges that as a Pilot Series product, future hardware generations (e.g., v4) may be released. The Company is not obliged to provide free hardware upgrades to newer model generations unless the original Goods are verified as defective under the Warranty terms.
  • Performance Variation: While the Company warrants that the Product complies with all essential safety requirements of the Electrical Equipment (Safety) Regulations 2016, the Customer acknowledges that aesthetic features (including chassis finish/ring light) and non-critical firmware features may vary from marketing descriptions as part of the continuous development process. Performance estimates are detailed in your specific Quotation and the product Datasheet.

7.2 Dangerous Goods and Transport Restrictions

  • Hazardous Classification: The Product contains large-format Lithium Iron Phosphate (LFP) cells and is classified as Class 9 Miscellaneous Dangerous Goods (UN 3480).
  • Prohibition on Customer Transport: The safety-critical components (Cells, BMS, DC Breaker) are tested to IEC 62619 standards, and the chassis is designed to align with this standard. However, the system is a Pilot Series unit and has not yet completed full system-level UN38.3 certification. Due to strict transport regulations (ADR/CDG), the Customer is strictly prohibited from transporting, relocating, or shipping the Product themselves. The Product must not be placed in the postal system, handed to a standard courier, or transported in a private vehicle.
  • Collection-Only Returns: In the event of a fault, return, or cancellation, the Customer must not attempt to return the Product. The Company will arrange for collection using specialized transport. Any attempt by the Customer to ship the Product independently will be a material breach of this Contract and may expose the Customer to criminal liability.

7.3 Installation and Commissioning (Critical)

  • Supply and Install Only: This Contract is for the supply and installation of the Product as a single service. The Company does not supply the Product on a "supply-only" or "cash-and-carry" basis.
  • Commissioning Requirement: Title to the Product shall not pass strictly until the Company's authorized technician has successfully commissioned the Product at the Installation Address.
  • Location Stability: The Product is installed as a Fixed Installation. The Customer must not move, disconnect, or reinstall the Product at a new location. If relocation is required, the Customer must contract the Company to perform the relocation.

7.4 Compatibility and Third-Party Equipment

  • Inverter Compatibility: The Product is designed to be functionally compatible with specific third-party inverters (e.g., Solis, Sunsynk, Victron) via specific CAN-bus protocols.
  • No Third-Party Endorsement: The Customer acknowledges that the Company is an independent manufacturer and is not an "approved partner" of inverter manufacturers unless stated.
  • Warranty Indemnity: The Customer accepts that the use of this Product may affect the warranty provided by their inverter manufacturer. The Company shall not be liable for any voidance of third-party warranties resulting from the use of the Product.
  • Configuration Settings: The Product's settings (including "dip switches" and BMS parameters) are configured by the Company. The Customer is strictly prohibited from altering these settings. Any alteration of dip switches, BMS firmware, or internal wiring by the Customer will: (a) Immediately void the Product Warranty; and (b) Release the Company from all liability regarding system safety, fire risk, or performance.

7.5 Specific Liability Limitations (Pilot Series)

  • Operational Interruption: The Company shall not be liable for any indirect or consequential loss, including loss of energy generation, loss of export tariff payments (e.g., SEG), or reliance on battery backup power during grid outages, arising from Product firmware updates, "Safe Mode" activation, or compatibility issues with third-party inverters.

8. Warranties

8.1. Workmanship: 24-month workmanship warranty (IWA backed). 8.2. Product Warranty: * Inverters: Covered by the Manufacturer's warranty (e.g., Solis/Sunsynk). Energy2 Ltd is an authorized reseller and will act as the Customer's agent to process warranty claims with the manufacturer. * Battery Pack: Covered by the Company's specific Battery Warranty (Refer to separate document: Warranty_Domestic_v3_Black). 8.3. All warranty protection is conditional on payment being made in full.

9. Servicing, Safety, and Care Requirements

9.1. Environment: The Customer must ensure the Battery is not subjected to outdoor usage, excessive dust/humidity, or extreme temperatures. 9.2. Maintenance: * Do not move, open, or service the Battery Pack. * Visual Check: Complete a visual check monthly. 9.3. Charging & Care: * The Customer must not let the Battery Pack drop to 0% charge and leave it uncharged for more than 7 days. Note: This typically occurs if the main power trips while the property is vacant for extended periods. We recommend checking the system remotely via the app if away. 9.4. Service Interval: The Battery Pack must be serviced at least every 3 years by Energy2. Service is chargeable (indicative cost provided in Warranty terms, subject to inflation). 9.5. Internet: A continuous internet connection is required for monitoring and warranty.

10. General Liability

10.1. Nothing in these Terms limits liability for death or personal injury caused by negligence. 10.2. Subject to Section 7.5, the Company’s total liability is limited to the value of the Contract.

11. Data Protection

11.1. Registration Number: ZC011630. Use of personal data is for contract performance and certification only. 11.2. Network access credentials will only be changed in consultation with the Customer.

12. Governing Law

Governed by the laws of England and Wales. Exclusive jurisdiction of the courts of England and Wales.


Acceptance of Order By signing below, the Customer accepts these Terms and Conditions (v4).

Signed (Customer): __________________________ Date: ____________

© 2026 Energy2 Ltd. Registered in England No. 13668568.

This document is accurate at time of printing. For latest version visit energy2.co.uk