GE Renewable Energy’s Grid Solutions business has energized Scottish and Southern Electricity Networks (SSEN) Transmission’s first g3 gas-insulated New Deer substation. This represents the world’s largest installation to date of g3 gas, GE’s alternative to SF6.
With the New Deer substation now home to the world’s largest installation of GE’s g3 gas, it is avoiding the equivalent of about 117,128 tons CO2 to the grid, comparable to more than 55,000 cars off the road for one year.
UK is currently trailing behind its Carbon neutrality goal. With its current policies UK will only be able to achieve a reduction of 20 percent of ghg where as they are aiming for 63 percent reduction by 2035. So the establishment of the g3 substation in Scotland is a sign that UK will be focusing more on g3 GIS substations than SF6 in the future, as these substations will help them achieve their carbon neutrality goal.

Link to the news: https://www.transformer-technology.com/news/us-news/2213-ge-energizes-ssen-transmission-s-first-g3-gas-insulated-substation-in-scotland-transformer-technology.html