Scope
Reference
Prj_7119
Description
Southern Water Services Limited (SWS) is seeking to award a single supplier Ofgem licenced supplier for provision of natural gas to all sites within their portfolio, in accordance with the specifications set out in the tender documentation (IITT).
The portfolio currently consists of 19 supply points across South East of England (Hampshire, Isle of Wight, Sussex, Kent) with total annual consumption at approximately 2.5GWh. The composition of the portfolio may change before the contract commences; SWS also reserves the right to add/remove sites from portfolio during contract term with accordance to appropriate contractual provisions.
The supply under the contract is to commence on 1st of April 2026. The initial contract period is 4 years, with the option to extend for up to a maximum duration of 5 years. SWS require a fixed price contract, with the ability to fix prices under the supply contract in 12 monthly periods (or multiply of) under any active term (subject to market liquidity).
The procurement will be conducted in line with the Procurement Act 2023, ensuring a fair, transparent, and competitive process to identify the Most Advantageous Tender.
Total value (estimated)
- £1,836,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 April 2026 to 31 March 2030
- Possible extension to 31 March 2035
- 9 years
Description of possible extension:
Potential extension for period or periods of up to 5 years to be agreed by both Parties. It is assumed the extension would be subject to same Terms and Conditions of contracting (with the exclusion of some elements, e.g. pricing arrangements), however review of/amendments to Terms of Conditions of contract will be considered if required (e.g. due to industry changes). Any changes would require mutual agreement of both Parties.
Main procurement category
Goods
CPV classifications
- 09123000 - Natural gas
- 09300000 - Electricity, heating, solar and nuclear energy
- 09121200 - Mains gas
Contract locations
- UKJ3 - Hampshire and Isle of Wight
- UKJ4 - Kent
- UKJ27 - West Sussex (South West)
- UKJ28 - West Sussex (North East)
- UKJ22 - East Sussex CC
Participation
Legal and financial capacity conditions of participation
As outlined in tender documentation
Technical ability conditions of participation
As outlined in tender documentation
Submission
Enquiry deadline
26 September 2025, 12:00pm
Submission type
Tenders
Tender submission deadline
10 October 2025, 12:00pm
Submission address and any special instructions
The procurement documents are available for unrestricted and full direct access, free of charge, at
https://southernwater.bravosolution.co.uk/
Additional information can be obtained from the above-mentioned address
Tenders or requests to participate must be submitted electronically via
https://southernwater.bravosolution.co.uk
Tenders or requests to participate must be submitted to the above-mentioned address
If you are interested in bidding for this tender, please be aware that you will need to have registered on the central digital platform before you will be able to bid. This will require you to complete some information and then you will be provided with a unique identifier. For more information on how to register, please follow the below link:
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
1 December 2025
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Technical | As outlined in tender documentation |
Quality | 60% |
| Commercial | As outlined in tender documentation |
Price | 40% |
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Special regime
Utilities
Competitive flexible procedure description
Southern Water will conduct this procurement under the Competitive Flexible Procedure, as defined in the Procurement Act 2023. This approach enables a streamlined and adaptable process, designed to ensure compliance while promoting fair competition and market engagement. This procurement will follow a single-stage process.
Tenderers will be required to complete Pre-Qualification Questionnaire (PQQ), which sets out Southern Water's standard mandatory requirements for tendering relating to (but not limited to) Tenderers' legal and financial capacity, as well as their basic capacity and capability to deliver the contract.
PQQ establishes the minimum Conditions of Participation. There is no scored technical section within the PQQ, which means the ITT part of the tender is opened to all Tenderers who meet the Condition of Participation. The PQQ clearly identifies any questions that may result in exclusion from further process.
Invitation to Tender (ITT) will be issued concurrently with the PQQ. Tenderers are expected to submit both components. If the Tenderer fails to meet the Conditions of Participation, their ITT submission would be invalidated.
The ITT part of the tender consists of Technical and Commercial Envelopes. Evaluation criteria and weightings will be detailed within the tender documentation.
The entire procurement process will be conducted electronically via Southern Water's e-sourcing platform, Jaggaer:
https://southernwater.bravosolution.co.uk
Tenderers must be registered on:
Jaggaer e-sourcing portal
Central Digital Platform, as required under the Procurement Act 2023
Documents
Documents to be provided after the tender notice
As a tender pack documentation available on https://southernwater.bravosolution.co.uk
Contracting authority
Southern Water Services Limited
- Public Procurement Organisation Number: PBJQ-2231-ZRPG
Southern Water, Southern House
Worthing
BN13 3NX
United Kingdom
Contact name: Kasia Wypior
Email: kasia.wypior@southernwater.co.uk
Website: http://www.southernwater.co.uk
Region: UKJ27 - West Sussex (South West)
Organisation type: Private utility