Ecotricity currently operates most of the UK Motorway Service Station chargers, other than the Tesla network, and has a dreadful reputation. However Gridserve is now investing in Ecotricity and together they intend to replace all the chargers during 2021.
Each single charger will be replaced by a double, i.e. twice as many bays.
See also a full Gridserve charging forecourt video.