Fig. 5: Average operation, flows and prices of the carbon and hydrogen sectors in the Hybrid scenario for net CO2 neutrality.
From: H2 and CO2 network strategies for the European energy system

a, Carbon sector. b, Hydrogen sector. For each region, upper semicircles show the average production per technology, lower semicircles the consumption and colours the average marginal prices. Carbon sequestration offshore is drawn in full circles. Lines and arrows show interregional transportation volume. Carbon from point source in the inland either supplies local CU with imported hydrogen or facilitates sequestration in nearby offshore regions. Maps for carriers other than CO2 or H2 (electricity, heat and gas) are shown in Supplementary Figs. 1 and 2. Basemaps from Natural Earth.