Detailed maps for Namibia. The detailed map costs shown are for scenario 2, cash-constrained de-risked. Supplementary Fig. 4 details scenario 1. Supplementary Fig. 3 provides continent maps for scenarios 3 and 4. Countries are not shown to scale to improve readability; each hexagon is the same area across all sub-figures. Colours indicate the cost competitiveness with European green H 2 projects, where blue is in the money compared to the cost of hydrogen produced in Rotterdam, yellow is near the European cost and red is likely to be uncompetitive. The dotted line on the colour bar denotes the mean modelled cost of hydrogen produced in Rotterdam across the four scenarios. Stars denote planned projects, as listed in Fig. 1 . Triangles denote the respective port of the country. Basemaps from GADM.
