Contract award · 19 Jun 2025

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

London Underground Limited awarded “TfL Renewable Corporate Power Purchase Agreement ('PPA Comet')” to Longfield Solar Energy Farm Limited on 19 Jun 2025.

Electrical equipment & lightingNorth East

Competition with a shortlist

Competitive procedure with a selection stage: suppliers were shortlisted before being invited to bid.

Key facts

Value
Not published
Procedure
Negotiated procedure with prior call for competition
Sector
Electrical equipment & lighting · Wind farm (CPV 31121340)
Timeline
  1. Contract date19 Jun 2025
  2. Published10 Jul 2025Published 21 days after the contract date

Description

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).

About the supplier

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