Daily Junction.mobi portalThe environmental case is also clear. Offshore wind has near-zero emissions during operation (though manufacturing and installation have a carbon footprint), and it avoids the air pollution and carbon emissions of gas power. Offshore wind farms also have relatively low environmental impact compared to other energy infrastructure—they occupy a small seabed footprint, and studies suggest they can coexist with fishing and marine ecosystems, though impacts on seabirds and marine mammals are still being studied.
To reach 50 GW by 2030, the UK needs to:
1. Maintain high CfD price caps. The 2024 auction showed that a strike price of £50-60 per MWh is viable for offshore wind under current conditions, but costs could rise again if interest rates stay high or supply chain pressures return. The government should set CfD caps at levels that ensure auctions succeed, even if this means paying slightly more than the theoretical minimum.
2. Accelerate grid connections. National Grid's centralised network design is the right approach, but it needs to be implemented faster. The government should also consider allowing offshore wind farms to connect to the grid before all onshore transmission upgrades are complete, using temporary constraints or curtailment to manage grid capacity.
3. Simplify planning. The government should set statutory time limits for planning decisions (e.g., 18 months from application to consent) and provide more resources to planning authorities to process applications faster. It should also clarify the balance between offshore wind and other marine uses (fishing, shipping, conservation) to reduce legal challenges.
4. Support the supply chain. The UK should invest in domestic turbine manufacturing, port infrastructure, and installation vessels to reduce reliance on imports and capture more of the economic value of offshore wind. This requires long-term policy certainty and potentially subsidies or tax incentives to attract manufacturers.
5. Develop floating wind. Floating offshore wind, needed for deeper waters (over 60 metres), is still expensive (around £100-150 per MWh) but has huge potential—Scotland's waters alone could support 100+ GW of floating wind. The government should continue to support floating wind through higher CfD price caps and innovation funding to bring costs down.
The UK has 14 GW of offshore wind capacity, the largest in the world, generating 13-14% of UK electricity in 2024. Offshore wind costs have fallen 70% since 2015, making it cheaper than new gas power, driven by larger turbines and the Contracts for Difference subsidy scheme. The government's 2023 auction failed to attract any bids after developers said the price cap was too low to cover rising costs from inflation and supply chain pressures, but the 2024 auction succeeded with a higher price cap, awarding 9.6 GW of new capacity. The UK aims to reach 50 GW of offshore wind by 2030, requiring 5-6 GW of new capacity per year—triple the current rate. Challenges include grid connection delays, planning bottlenecks, and competition from the US and EU offering more generous subsidies. Achieving the 2030 target requires maintaining high CfD price caps, accelerating grid connections, simplifying planning, and supporting the domestic supply chain.