a–c, Lines/markers indicate the median expert response for the median-LCOE scenario, and the shaded areas represent the 25th–75th percentile ranges of all responses for that median scenario. Shown are results from the 2020 survey, as well as the earlier 2015 survey27. Panels show results for onshore (a), fixed-bottom offshore (b) and floating offshore (c) wind. Supplementary Fig. 1 provides similar data across all three LCOE scenarios, focused solely on the 2020 survey.