Contracts for Difference (CfD) has been useful in driving down the cost of offshore wind and provides certainty to developers of renewable technology, but more could be done to improve the CfD system. By focusing on net zero goals the CfD could be realigned to prioritise best value, not just lowest cost. We recommend the next CfD round should prioritise renewable energy systems, not just at the lowest cost, but with a long-term view that focuses heavily on net zero targets and best value for money, up to 2050.