Johnson, Nathan https://orcid.org/0000-0002-9521-4700
Liebreich, Michael https://orcid.org/0009-0003-6450-3993
Kammen, Daniel M. https://orcid.org/0000-0003-2984-7777
Ekins, Paul
McKenna, Russell
Staffell, Iain https://orcid.org/0000-0003-1012-7075
Article History
Accepted: 7 March 2025
First Online: 22 April 2025
Competing interests
: N.J. provides consultancy services through Imperial Consultants, and I.S. is the director of Wooler Energy, which provides techno-economic analysis, data analytics and decision support services for the energy sector. Their clients in the past 12 months include Aurora Energy Research, Baringa, The Brattle Group, Drax Group, Octopus Energy and SSE. M.L. is the director of Liebreich Associates and managing partner of EcoPragma Capital. He holds investments in companies including those in green hydrogen, fuel cells, ammonia, heat pumps and electric vehicles. D.M.K., P.E. and R.M. declare no competing interests.