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This guide by RMI explains demand aggregation as a strategy to accelerate the decarbonization of heavy industry and transport. By consolidating fragmented demand into larger signals, buyers can reduce first-mover risk, achieve economies of scale, and provide the financial certainty needed for suppliers to invest in low-emissions infrastructure. The document details specific initiatives in aviation, maritime shipping, steel, and cement, highlighting the use of joint procurement and 'book and claim' mechanisms to bridge the 'green premium' gap.

A survey of 23 companies by RMI and the Mission Possible Partnership indicates that airlines and corporate customers are willing to pay a 'green premium' for Sustainable Aviation Fuel (SAF) and SAF certificates (SAFc). The findings suggest that waste-based feedstocks and shorter contract durations are preferred, and that current willingness to pay (WTP) could make certain SAF production pathways, particularly HEFA, financially bankable.