List of Figures
Figure 2.1 The renewable hydrogen framework . . . . . . . . . . . . . . . . . . . . . 11
Figure 3.1 Focus areas for the practical literature review . . . . . . . . . . . . . 14
Figure 4.1 Focus areas for the scientific literature review . . . . . . . . . . . . . 30
Figure 4.2 Hydrogen production processes (Shiva Kumar
and Himabindu 2019) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 4.3 The costs elements and revenues of the power-to-gas
technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 5.1 The focus areas of the documentation review . . . . . . . . . . . . . . 46
Figure 5.2 Renewable Hydrogen Framework—Focus areas identified
out of the literature review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 5.3 Distribution of interviewees and status of interviews . . . . . . . . 57
Figure 5.4 Building blocks of the survey design . . . . . . . . . . . . . . . . . . . . . 67
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