“…38,48,83 The decision to introduce segmentation via technology and environmental engagement lters, in addition to fuel stress (see ESI3 †) provides an important continuum to recent research carried out in the UK, 43,52,80 while signicantly advancing prior engagement with the topic of hydrogen acceptance. 58,84,85 Specically, Gordon et al 43,52,80 laid the foundations for this study by conducting ten online focus groups (N = 58), which compared a range of consumer segments, dened according to ve categories: interest in renewable energy and joining a renewable energy community; ownership of solar PV panels and multiple smart home technologies; active engagement in environmental issues; facing fuel poverty or high levels of fuel stress; and living in an industrial city or town.…”