UK Contracts for Difference Allocation Round 2
Also known as: AR2, UK AR2, CfD AR2, UK CfD AR2, Allocation Round 2, Second Allocation Round, Contracts for Difference Allocation Round 2, Contracts for Difference (CfD) Allocation Round 2, CfD Allocation Round 2, Second CfD Allocation Round, 2017 CfD Allocation Round 2
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AR2 opened on 3 April 2017 after AR1 had established offshore-wind clearing prices around GBP 114-120/MWh, so most observers expected further compression rather than the step-change that followed. Bidding was shaped by a deep consented Crown Estate Round 3 and Greater Wash pipeline, rapid turbine scaling into the 8 MW-plus class, and post-Brexit sterling depreciation against a strong BEIS value-for-money narrative. The immediate policy frame was the November 2016 Autumn Package (ASP Methodology, Supply Chain Plan Guidance and the fuelled-tech call for evidence), followed by the 1 February 2017 Government Response and SI 2017/112 in force from 1 March 2017, with European Commission State Aid approval SA.44475 arriving mid-round on 26 July 2017.
3
Sealed · single-round
Contract for Difference
3.2 GW
1 year for all AR2 technologies under the Standard Terms Notice; the window may be extended day-for-day for specified delay events.
GBP 57.5–74.8/MWh (2012 real)
15 years
CPI
For intermittent technologies, 6 or more consecutive negative-price settlement hours create an Intermittent Rolling Negative Price Period during which the Difference Amount is zeroed for that block; baseload technologies use the corresponding rolling-window rule in half-hour units.
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Curtailment compensation is available under the Qualifying Curtailment / Qualifying Partial Curtailment provisions in the Standard Terms.
AR2 uses a non-delivery disincentive in termination form rather than a financial penalty: failure to meet the Milestone Requirement or to satisfy Operational Conditions Precedent by Longstop can lead to termination without payment.
15-year two-way FiT Contract for Difference awarded to successful applicants under AR2. The CfD runs to the Specified Expiry Date, defined as the 15th anniversary of the earlier of the Start Date and the last day of the Target Commissioning Window.
→ If the milestone requirement is not met, LCCC may terminate the contract before Start Date; no termination payment is due on this pre-Start Date termination route.
→ If Operational Conditions Precedent are not fulfilled or waived by the Longstop Date, LCCC may terminate the contract.
→ An ineffective Start Date Notice does not bring the contract into payment; a further valid notice must be submitted subject to the contract rules.
→ If no valid notice is given by the deadline, Final Installed Capacity may be deemed to be 80% of the Installed Capacity Estimate, and failure can also become a termination event.
TCW: 1 year for all AR2 technologies under the Standard Terms Notice; the window may be extended day-for-day for specified delay events.
Late delivery: AR2 uses a non-delivery disincentive in termination form rather than a financial penalty: failure to meet the Milestone Requirement or to satisfy Operational Conditions Precedent by Longstop can lead to termination without payment.
Single-round sealed-bid pay-as-clear auction. Qualifying applications compete on Strike Price, with original sealed bids plus permitted Flexible Bids; all successful applications in a given Delivery Year receive that Delivery Year's clearing price, capped at the applicable Administrative Strike Price.
Reserve: — Technology- and Delivery-Year-specific Administrative Strike Prices act as the bid cap / reserve-price ceiling. For Offshore Wind these were GBP 105/MWh for 2021/22 and GBP 100/MWh for 2022/23.
Applicant must qualify as an Eligible Generator under the Contracts for Difference (Definition of Eligible Generator) Regulations 2014 and must not apply in respect of an already-commissioned generating station except where the specific conversion exception applies.
Applicant must provide incorporation and registration evidence, including UK Certificate of Incorporation, VAT registration, or non-UK equivalent documentation as applicable.
Applicant must provide signed and dated planning consent evidence consistent with the project's stated capacity, technology and location, or show that the consent does not apply.
Applicant must show a qualifying grid connection arrangement. For direct transmission connection, Transmission Entry Capacity must be at least 75% of the Initial Installed Capacity Estimate; equivalent thresholds apply for other connection pathways, with separate phase evidence for phased offshore wind.
Projects of 300 MW or more must hold a valid BEIS Supply Chain Plan Approval Certificate before the main application window opens. The qualification outcome is binary even though the underlying SCP assessment uses scored criteria.
Applicant must confirm that the project is not in receipt of incompatible support such as NFFO, Scottish Renewable Obligation, Renewables Obligation accreditation where excluded, or Capacity Market support, subject to stated exceptions.
The Target Commissioning Date must fall within the Delivery Year specified in the application.
Composite structural eligibility rules: phased offshore wind units must be no more than 1,500 MW in total, have a first phase of at least 25% of total capacity, have first-phase Target Commissioning Date no later than 31 March 2023, final phase no later than 2 years after the first phase, and no more than 3 phases; AD projects must be above 5 MW; EfW with CHP projects are excluded where an RHI accreditation application has been made.
AR2 eligibility is limited to Offshore Wind, Advanced Conversion Technologies, Anaerobic Digestion (>5 MW), Dedicated Biomass with CHP, Wave, Tidal Stream and Geothermal. Remote Island Wind and Floating Offshore Wind were not eligible at AR2; ACT did not yet have the later physical-separation requirement; Biomass with CHP / EfW with CHP used the then-current CHPQA efficiency standard rather than AR3's later 70% threshold.
Method: quantitative formula
Unit: GBP/MWh (2012 prices)
- closest envelope fit — Where tied applications cannot all succeed under the relevant maxima and/or budget constraint, the Delivery Body selects the application or combination of applications that comes closest to fulfilling the relevant envelope in the final budget-profile year without exceeding the applicable constraint.
- electronic random assignment — If two or more applications or combinations are equally close under the relevant Rule 18 test, the Delivery Body chooses at random using an electronic random assignment process.
Legal basis: Energy Act 2013; Contracts for Difference (Allocation) Regulations 2014 as amended. BEIS issued the Allocation Round Notice and Budget Notice on 2017-03-13 and ran the Supply Chain Plan approval process.
Legal basis: Acted as the EMR Delivery Body under the CfD (Allocation) Regulations 2014 and the Allocation Framework for AR2.
Legal basis: Energy Act 2013 and Contracts for Difference (Standard Terms) Regulations 2014 as amended; acted as CfD Counterparty for awarded contracts.
Legal basis: Qualification appeals authority under the CfD (Allocation) Regulations 2014.
Legal basis: Regulation 36 process-audit role for valuation and allocation calculations.
Legal basis: EU State Aid approval SA.44475 on 2017-07-26 under the pre-Brexit State Aid regime.
Technology- and Delivery-Year-specific cap set under the AR2 ASP Methodology; bids could not exceed the applicable ASP and clearing prices were capped at the ASP.
GBP 290 million per Delivery Year in 2011/12 prices, CPI-rebased by inflator 1.0193 to about GBP 295 million in 2012 prices for valuation.
Budget impact = (Strike Price − Reference Price) × Load Factor × YR1F × Capacity × (Days × 24) × (1 − TLM) × RQM × CHPQM.
2011/12-price budget × 1.0193 = 2012-price valuation budget.
| Winner | Site/Lot | Category | Awarded MW | Current MW | Price | Total Value | Delivery | Term | Mechanism | Signed | Offer | Current Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Triton Knoll Offshore Wind Farm Limited | Triton Knoll Offshore Wind Farm | Offshore Wind | 860 MW | 847.5 MW | GBP 74.75/MWh | — | 2021 | — | auction clearing | — | — | Live |
| Breesea Limited | Hornsea Project 2 | Offshore Wind | 1,386 MW | 1,358.24 MW | GBP 57.5/MWh | — | 2022 | — | auction clearing | — | — | Live |
| Moray Offshore Windfarm (East) Limited | Moray Offshore Windfarm (East) | Offshore Wind | 950 MW | 937.602 MW | GBP 57.5/MWh | — | 2022 | — | auction clearing | — | — | Live |