Fig. 4

CAPEX projections from different studies for utility-scale PV and onshore wind power technologies in two regions: (a) utility-scale PV in Europe, (b) onshore wind in Europe, (c) utility-scale PV in Asia, and (d) onshore wind in Asia. The black solid line in each subplot represents the historical CAPEX trend for the corresponding technology, and the shaded grey area around it indicates the range of observed historical costs.