Strike Prices ranged from £39 to £41/MWh (in 2012 prices). These prices are well below both the administrative Strike Prices set by BEIS and the prices seen in CfD Allocation Round 2. For wind, this is an indication that developers are expecting that the downwards trend for construction and technology costs in the sector will continue.
This Allocation Round saw the first participation of remote island wind in CfD auctions, with four projects winning CfDs with Strike Prices of £39 and £41/MWh. There was a particularly notable difference between the Strike Prices achieved and the administrative Strike Price for this technology (which BEIS had set at £112/MWh). This shows the impact of there being no minima for remote island wind in Allocation Round 3 – with developers perhaps feeling the need to compete with offshore wind to be awarded a CfD at all. Delivering remote island wind at these prices will be very challenging and there are other challenges arising as a result of bigger projects missing out on CfDs – as explained further below. For Orkney, projects with a capacity of approximately 36 MW were awarded CfDs – leaving developers needing to identify a further 99MW of project by December 2021 in order for the Orkney interconnector to be built.
Offshore wind and ACT were also awarded contracts, with three separate allocations made to SSE’s Dogger Bank offshore wind project (totaling 1.2GW).
Several big projects were unsuccessful in Allocation Round 3 – including Viking, Stornoway and Moray West wind farms who were not awarded CfDs.
There could be indirect consequence arising from the bigger projects missing out. For example, Ofgem’s approval of the Shetland interconnector was effectively conditional on Viking being awarded a CfD by December 2019. Other developments in Shetland could therefore be adversely impacted by the failure to award a CfD to the Viking project. In addition, Stornoway was the largest of the proposed Isle of Lewis projects and it remains to be seen whether Druim Leathann and Uisenis on their own, will be sufficient to win approval for the interconnector.
CfD Allocation Round 3 allowed for up to 6MW of capacity to be allocated. In the event, only 5.7 GW of capacity was awarded CfDs, indicating that one of the bigger projects (>300MW) was the plant which broke the budget.
The success of the CfD auction and the low prices achieved show that developers still have significant appetite for renewables development in the UK. Coupled with the announcement by Crown Estate of Offshore Wind Leasing Round 4 it shows that offshore wind, in particular, is thriving. The prices remain challenging for developers to achieve, but remote island wind has passed the first hurdle to being a viable technology.