Windfarms able to access greater market revenues by delaying start of CfD contracts
Windfarms able to access greater market revenues by delaying start of CfD contracts
Data collated by Cornwall Insight has shown that offshore windfarms delaying the start of their CfD contracts with the government, could have made significantly greater profits since the start of 2022.
Under a government’s Contracts for Difference (CfD) agreement, successful generators, are awarded a Strike Price for every unit of power1 that they generate through a competitive auction process. CfD supported assets include a variety of different renewable technologies, including offshore wind. If power prices go above the Strike Price generators pay the Low Carbon Contracts Company (LCCC) the difference, and vice versa. It has been widely reported that offshore windfarms with CfD agreements are choosing to delay the start of their CfD terms2 in order to take advantage of high wholesale power prices and avoid having to pay additional revenue back to the LCCC.
The data shows a significant commercial incentive for delaying the CfD, with Strike Prices for offshore wind in Allocation Round 2, held in 2017, set at £73.71/MWh and £94.81/MWh (both prices in current money), compared with the Intermittent Market Reference Price (IMRP) – used to determine CfD payments in each hour for the offshore windfarms – which has averaged £187.42/MWh since the start of 2022 up to 14 May.
Of the 3,190 hourly periods from the start of the year to 14 May, the IMRP has been higher than £73.71/MWh in 3,072 (96%) and higher than £94.81/MWh in 2,892 (91%) of them. If plants with these Strike Prices had activated their CfDs at the start of the year, this would have resulted in significant paybacks to the LCCC.
Under current regulation, theoretically, an offshore windfarm can commission anywhere within a 3-year window, with current assets that are now operational but have not yet activated their CfD making use of this to make additional revenue on the wholesale market.
Figure 1: Daily average IMRP vs selected offshore wind Strike Prices
"Questions will be raised around the fairness of generators in taking such an approach to their CfD contract and whether the CfD terms should be amended for future rounds to account for commissioning during periods of very high market prices.”