These cryogenic liquids are already widely used in industry but their potential for use as an energy vector is only just beginning to be explored. Consequently, discussion concerning liquid air is not yet part of the mainstream energy debate, despite the apparent huge potential the technology offers. For example it is uniquely able to recover low grade waste heat from sources such as thermal generation, data centres and industrial processes as well as vehicle engines. This heat can then be turned into power and a number of British organisations are developing ways to exploit the technology as a zero emission store and transport fuel. This would in turn create a huge economic opportunity for the UK.

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