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Published 8 Feb 2023, 14:17 GMT

Official UK procurement notice

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

Official notice

Authority: Transport for London (Public body)·Consortium: 2 public authorities

GoodsNegotiated procedure with prior call for competition
Sectors: Petroleum products, fuel, electricity and other sources of energy (09)Electrical machinery, apparatus, equipment and consumables; lighting (31)Construction & Civil Engineering (45)
+2 moreInstallation services (except software) (51)Architecture & Engineering (71)
 Delivery: UKNorth East (UKC)North West (UKD)
+9 moreYorkshire & Humber (UKE)East Midlands (UKF)West Midlands (UKG)East of England (UKH)London (UKI)South East (UKJ)South West (UKK)Wales (UKL)Scotland (UKM)
Budget not disclosedValue not published
Submissions closed 21 Mar 2023awarded 19 Jun 2025
Awarded to Longfield Solar Energy Farm Limited

What is being bought

Published requirement description

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.

CPV: Construction work · Electricity supplies · Engineering services · Installation services (except software) · Petroleum products, fuel, electricity and other sources of energy · Wind farm

The lotProcurement structure

single lot · no lot value published
Lot #1TfL is entering into a Corporate PPA, 'PPA Comet', with renewable generator EDF Energy…Awarded

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).

Delivery: UK, North East, North West, Yorkshire & Humber, East Midlands, West Midlands, East of England, London, South East, South West, Wales, Scotland
Variant bids: not allowed
31121340 Wind farm31682000 Electricity supplies45000000 Construction work51000000 Installation services (except software)71300000 Engineering services

Procedure terms & legal framework

From the official record
Procedure method
Negotiated procedure with prior call for competition
Legal basis
CELEX · 32014L0025 Utilities Contracts Regulations 2016 (Directive 2014/25/EU)
Procurement category
Goods
Notice status
Awarded
Procurement threshold
Unspecified in notice
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Yes (GPA)
Recurring procurement
No (one-off requirement)
First published
8 Feb 2023, 14:17 GMT
Last source update
10 Jul 2025, 15:13 BST
FTS notice number
2025/S 000-039021
Classification (CPV)
Construction workElectricity suppliesEngineering servicesInstallation services (except software)Petroleum products, fuel, electricity and other sources of energyWind farm
Delivery area
UKNorth East (UKC)North West (UKD)Yorkshire & Humber (UKE)East Midlands (UKF)West Midlands (UKG)East of England (UKH)London (UKI)
+4 moreSouth East (UKJ)South West (UKK)Wales (UKL)Scotland (UKM)
Official registry OCID
ocds-h6vhtk-03a3f2 Find a Tender

How it was run

Official notice
Submission deadline
21 Mar 2023, 12:00 GMT
Submission channel
{"written"}
Accepted languages
en

Timeline

21 Mar 2023 → 10 Jul 2025 · 2 dates
  1. Submission deadline
    21 Mar 2023, 12:00 GMT
  2. Notice published
    10 Jul 2025, 15:13 BST

Notice history

2 events · 2 releases on Find a Tender · since 10 Jul 2025
  1. Status changed to complete
    10 Jul 2025, 15:13 BST
  2. Buyer details updated
    10 Jul 2025, 15:13 BST

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Awards 1
Contracts signed 1latest 19 Jun 2025
Awarded toValueDateStatus
Longfield Solar Energy Farm Limited——Awarded

Contracts

Contracting authority & participating public bodies

2 public bodies on the notice

London Underground Limited

Contracting authorityPublic bodyUrban railway, tramway, trolleybus or bus services 5 Endeavour Square, London, London, E201JNContact name, email, phone

Dispute resolution & review bodies

  • HM High Courts and Tribunal ServiceReview body London

Bidders & participating suppliers

1 commercial party on the notice

Official documents & specifications

Official links; attachments are not copied

No document links were published on the notice.