---
title: "TfL Solar Private Wire Delivery Partner"
ocid: "ocds-h6vhtk-03bea3"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03bea3"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-03bea3.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-03bea3.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "LONDON UNDERGROUND LIMITED"
published: "2026-03-31"
---

# TfL Solar Private Wire Delivery Partner

Buyer: LONDON UNDERGROUND LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-03bea3

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## Summary

The procurement process led by Transport for London (TfL) aims to establish a framework agreement for a Solar Private Wire Delivery Partner to supply zero-carbon electricity from decentralised solar sources. London Underground Limited (LUL), acting as the contracting authority, will manage this initiative to reduce carbon emissions associated with its operations. The framework spans an initial term of four years with potential extensions up to eight years, with contracts called off via Power Purchase Agreements (PPAs). This Competitive Dialogue procedure consists of five stages, culminating in the awarding of the framework contract to SSE Utility Solutions Limited. The total estimated value of the framework is £175 million, aligned with the procurement's strategic goals under the CPV classification of solar energy. The project site locations are set within UK regions UKI and UKJ.

This tender represents a significant opportunity for enterprises within the renewable energy sector, particularly those capable of delivering sustainable solar energy solutions that integrate into urban infrastructure. Strategic partnerships with TfL offer potential business growth and acknowledgment as leaders in renewable energy. Businesses that can demonstrate technical proficiency, commercial viability, and innovative environmental stewardship stand to gain in this procurement process, aligning their offerings with the sustainability targets of TfL. Moreover, the procurement process supports diverse energy solutions, including solar farms' development and maintenance, battery storage opportunities, and enhanced efficiency measures. Such ventures facilitate long-term collaborations, benefiting both businesses and the burgeoning solar energy market.

## Notice

This procurement was undertaken by Transport for London (TfL) on behalf of London Underground Limited (LUL). The primary objective of TfL's Solar Private Wire project is to enable TfL to directly receive zero-carbon electricity from decentralised sources, reducing the carbon emissions associated with its operations. The project is primarily focused on private wire connections to new-build solar photovoltaic generation. The contracting authority (LUL) has appointed an economic operator (a 'Delivery Partner') with whom it can work collaboratively in order to deliver solar private wire projects within reasonable proximity to the London Underground network. Opportunities may also extend to connections into the broader TfL estate. LUL envisages that PPAs will take the form of newly-built solar assets, and LUL may also consider existing assets on a site-by-site basis. The arrangement takes the form of a single supplier framework agreement, allowing for individual projects to be subsequently 'called-off' (i.e. negotiated and contracted for via a private/direct wire Power Purchase Agreement (PPA)). The framework agreement will be for a duration of four (4) years, with an option to extend for up to a further four (4) years; the option to execute any extension, and the increments by which this is exercised, will be at LUL's sole discretion. The contracting authority (and the party to the framework agreement) will be LUL. In addition to LUL, other members of the TfL Group may call-off from the framework agreement. In this case the relevant TfL entity will be the contracting entity who will be party to the PPA. Where LUL is mentioned in this contract notice, it may also incorporate other members of the TfL Group in its meaning. The number of PPAs that may be entered into is not fixed or limited and the anticipated length of any PPA under the framework is approximately 25 years (subject to the specific nature of site). The activities that LUL envisages the Delivery Partner will undertake include (but are not limited to): (a) preparing, developing and submitting a strategy that outlines potential sites upon which solar farms may be developed (including the identification of suitable sites corresponding to the land classification (i.e. greenfield, brownfield etc.)) and developing project proposals from sites identified; (b) obtaining all relevant approvals, consents and permissions from the relevant authorities and third parties (as applicable) in relation to any site that is to be taken forward as a solar farm; and (c) provided that certain contractual requirements are met, undertaking necessary activities in order to design, construct, operate and maintain the solar farm and related connection assets. Additional associated services that LUL may request from the Delivery Partner include (but are not limited to): (a) battery storage opportunities related to the installed solar arrays; and (b) services and products related to the optimisation of generation and efficiency of the installed solar arrays.

### Lot Information

Lot 1

The procurement process was carried out under the Competitive Dialogue procedure, consisting of five (5) stages. Full details for the down selection of economic operators (bidders) at the end of each stage were provided in the procurement documents. High-level details are below. Stage 1: Selection Questionnaire ('SQ') - Up to six (6) highest-ranking compliant bidders invited to ISOS; Stage 2: Invitation to Submit Outline Solution ('ISOS') - Up to three (3) highest-ranking compliant bidders invited to Dialogue; Stage 3: Invitation to Participate in Dialogue ('ITPD') - No down selection; Stage 4: Dialogue - No down selection; and Stage 5: Invitation to Submit Final Tender ('ISFT') - Highest-ranking compliant bidder is awarded the framework agreement. Following evaluation of the ISFT stage, the highest-ranking bidder has been awarded the place on the framework agreement. Additional information: REGISTERING ON THE E-TENDERING PORTAL Interested parties were provided with instructions on how to register and communicate with TfL in regard to this exercise, as detailed in the Contract Notice (2024/S 000-035263). ESTIMATED TOTAL VALUE (II.1.7 & V.2.4) The estimated value of the framework referred to in sections II.1.7 and V.2.4 has been developed assuming LUL (including members of the TfL Group) purchases renewable energy through solar farms equating to 64MW of capacity through the framework agreement. This value may fluctuate (increase) in accordance with changes in the economics of the energy market.

Options: 48 month initial term (initial expiry is February 2030), with optional extension(s) of up to an additional 48 months, at the sole discretion of the contracting authority. The total duration of contract, inclusive of any extension provision is 96 months.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/029720-2026 |
| Notice type | Planning Notice |
| Procurement type | Framework |
| Procurement category | Goods |
| Procurement method | Selective |
| Procurement method details | Competitive dialogue |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Planning, Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 31 Mar 2026 |
| Submission deadline | 20 Dec 2024 |
| Future notice date | 1 Nov 2023 |
| Award date | 23 Dec 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £175,000,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £175,000,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Cancelled |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LONDON UNDERGROUND LIMITED |
| Additional buyers | TRANSPORT FOR LONDON |
| Locality | LONDON |
| Post town | East London |
| Postcode | E20 1JN |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI41 Hackney and Newham |
| Local authority | Newham |
| Electoral ward | Stratford Olympic Park |
| Westminster constituency | Stratford and Bow |
| Delivery location | TLI London, TLJ South East (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SSE UTILITY SOLUTIONS |

## CPV Codes

### Divisions

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

### Codes

- 09330000 - Solar energy

## Release History

- 31 Mar 2026 at 13:09 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/029720-2026
- 31 Oct 2024 at 09:04 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/035263-2024
- 14 Apr 2023 at 09:14 - Planning - Planning Notice - https://www.find-tender.service.gov.uk/Notice/010741-2023

## Notice URLs

- https://service.ariba.com/Supplier.aw
- https://tfl.gov.uk/
- https://www.london.gov.uk/sites/default/files/gla_group_responsible_procurement_policy_2021.pdf

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03bea3. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-03bea3.json.