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In the Court of Justice of the European Union (CJEU) it was ruled that electric vehicle charging via public charging points, was a supply of goods, regardless that some elements of the supply were services, ie; access technical support, reservation of a charging point, and a parking space while charging. The overriding supply was the provision of electricity which is classified as goods.
The full P. In W. case here.
It is unlikely that the UK authorities will form a different view.
Although in most cases there is unlikely to be a significant difference, although there could be issues with the time of supply (tax point).