---
title: "TfL Renewable Corporate Power Purchase Agreement ('PPA Comet')"
ocid: "ocds-h6vhtk-03a3f2"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03a3f2"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-03a3f2.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-03a3f2.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "LONDON UNDERGROUND LIMITED"
published: "2025-07-10"
---

# TfL Renewable Corporate Power Purchase Agreement ('PPA Comet')

Buyer: LONDON UNDERGROUND LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-03a3f2

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03a3f2)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-03a3f2.json)

## Summary

The public procurement process for the "TfL Renewable Corporate Power Purchase Agreement ('PPA Comet')" was initiated by Transport for London (TfL), contracting through its subsidiary, London Underground Limited. The procurement is within the industry category of "Petroleum products, fuel, electricity and other sources of energy," classified under CPV code 09000000. The process is now at the Award stage, with the status marked as complete. The contract involves a selective procurement method via a negotiated procedure with prior competition call, compliant with the Utilities Contracts Regulations (2016). TfL has awarded this contract to Longfield Solar Energy Farm Limited, contracting for 80GWhs of renewable energy annually from a solar farm located in Essex, with power delivery commencing on 1 December 2028. The procurement spans various delivery regions in the UK, with key infrastructure developments expected over the contract's 15-year lifespan.

This tender provides substantial opportunities for growth, particularly for businesses operating in the renewable energy sector, such as large-scale energy suppliers and infrastructure developers. Companies with capabilities in electricity supplies, engineering services, and construction, especially in power generation, are well-suited to compete under the terms of such tenders. By seeking out collaboration with public entities like TfL, firms can not only secure long-term contracts but also contribute to sustainable energy initiatives. The procurement process, heavily weighted on pricing, indicates a competitive environment where companies offering cost-effective and innovative solutions can thrive.

## Notice

Transport for London (TfL) (contracting as its subsidiary, London Underground Limited) is entering into a 15 year PPA ('PPA Comet') with a renewable generator, EDF Energy Renewables Limited (through its subsidiary Longfield Solar Energy Farm Limited), contracting for 80GWhs of renewable energy per annum from an 'additional' generator asset (Longfield solar farm, Essex). The new build facility is due to begin delivering power to TfL under a PPA on 1 December 2028. Please note: This notice represents the contract award of the procurement launched by FTS Notice: 2023/S 000-003886.

### Lot Information

Lot 1

TfL is entering into a Corporate PPA, 'PPA Comet', with renewable generator EDF Energy Renewables Limited (through its subsidiary Longfield Solar Energy Farm Limited). TfL will purchase 20 per cent of the power generated by the renewable facility (around 80GWh per annum) for the duration of the supply period (i.e. 15 years) as well as the associated environmental attributes and benefits. The contract structure is a 'pay-as-produced' sleeved ('physical') PPA for the supply of solar power, with TfL's existing utility supplier (or such other licensed supplier that TfL may appoint from time to time) providing the sleeving services. TfL conducted a Negotiated Procedure with prior call for competition under the Utilities Contracts Regulations (2016). The award criteria consisted of both quality and price components; however, all quality evaluation took place on a pass/fail basis, with 100% of the evaluation weighting applied to the price (with all compliant bidders ranked accordingly).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/039021-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Selective |
| Procurement method details | Negotiated procedure with prior call for competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 10 Jul 2025 |
| Submission deadline | 21 Mar 2023 |
| Future notice date | Not specified |
| Award date | 18 Jun 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LONDON UNDERGROUND LIMITED |
| 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 | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England), TLL Wales, TLM Scotland |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | LONGFIELD SOLAR ENERGY FARM |

## CPV Codes

### Divisions

- 09 - Petroleum products, fuel, electricity and other sources of energy
- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 45 - Construction work
- 51 - Installation services (except software)
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 09000000 - Petroleum products, fuel, electricity and other sources of energy
- 31121340 - Wind farm
- 31682000 - Electricity supplies
- 45000000 - Construction work
- 51000000 - Installation services (except software)
- 71300000 - Engineering services

## Release History

- 10 Jul 2025 at 14:13 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/039021-2025
- 8 Feb 2023 at 14:17 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/003886-2023

## Notice URLs

- https://service.ariba.com/Supplier.aw
- https://tfl.gov.uk

## 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-03a3f2. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-03a3f2.json.