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prj_7119 - Natural Gas Supply (Non-domestic)

Southern Water Services Limited

This public procurement record has 2 releases in its history.

Tender

10 Sep 2025 at 10:23

UK4 - Tender Notice
Planning

14 Apr 2025 at 11:41

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Southern Water Services Limited, a leading private utility company based in Worthing, has initiated a procurement process for a significant contract titled "prj_7119 - Natural Gas Supply (Non-domestic)". This tender falls under the goods category, specifically targeting the natural gas and associated services industry, with an annual consumption of about 2.5GWh across 19 supply points in the South East of England, including Hampshire, Isle of Wight, Sussex, and Kent. Currently in the tender stage, the procurement process began with a notice published on 10 September 2025, and it requires submissions by 10 October 2025. Contracts are planned to start from 1 April 2026 for an initial period of four years, with possible extensions up to five years. Employing an open procurement method with a competitive flexible procedure under the Procurement Act 2023, this process aims to identify the most advantageous tender.

This procurement presents a lucrative opportunity for Ofgem licenced natural gas suppliers seeking to expand their business in the UK utilities market. The fixed price contract with options for price adjustments based on market liquidity can appeal to suppliers able to offer competitive pricing and flexible service terms. Companies that have robust financial and technical capabilities, as outlined in the Pre-Qualification Questionnaire, and a comprehensive understanding of Southern Water's supply needs will find themselves well-positioned. Suppliers will need to register on the Southern Water e-sourcing platform to participate, ensuring compliance with the streamlined electronic submission process. This contract offers potential long-term partnership benefits and the possibility for extension, thereby providing a stable revenue stream for successful bidders.

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Notice Information

Notice Title

prj_7119 - Natural Gas Supply (Non-domestic)

Notice 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.

Lot Information

Lot 1

Renewal: 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.

Planning Information

Suppliers interested in this opportunity can engage with SWS via email provided, individual calls/teams meetings to disucss this requirement can be arranged on request.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05024e
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/055271-2025
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Open
Procurement Method Details
Competitive flexible procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

09 - Petroleum products, fuel, electricity and other sources of energy

CPV Codes

09121200 - Mains gas

09123000 - Natural gas

09300000 - Electricity, heating, solar and nuclear energy

Notice Value(s)

Tender Value
£1,836,000 £1M-£10M
Lots Value
£1,836,000 £1M-£10M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
10 Sep 202511 months ago
Submission Deadline
10 Oct 2025Expired
Future Notice Date
23 May 2025Expired
Award Date
Not specified
Contract Period
1 Apr 2026 - 31 Mar 2030 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Southern Water Services Limited
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
WORTHING
Postcode
BN13 3NX
Postcode Area
Brighton
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ2 Surrey, East and West Sussex
Small Region (ITL 3)
TLJ27 West Sussex (South West)
Delivery Location
TLJ22 East Sussex CC, TLJ27 West Sussex (South West), TLJ28 West Sussex (North East), TLJ3 Hampshire and Isle of Wight, TLJ4 Kent
Local Authority
Worthing
Electoral Ward
Northbrook
Westminster Constituency
Worthing West

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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