The example of the United Kingdom shows that reforming low-carbon support instruments can take time. The proposed electricity market reform, which goes through several reforms in parallel, mobilizes a lot of resources and staff. Governments should aim to provide more certainty and predictability, while evolutions of climate policies may be needed to reflect a rapidly changing new economic environment and rapidly declining costs of some low-carbon generation technologies. Support instruments for low-carbon generation which include some control over quantitative deployment of capacity provide more predictability.