NGT – where the electricity would come from
Because the trolleybuses proposed for Leeds would be using electricity from the national grid, and because 72.5% of the electricity generated in the UK comes from burning fossil fuels, trolleybuses on the streets of Leeds would be no less polluting than diesel buses. All they would do is transfer pollution produced by buses, from the streets, to the areas around the power stations.
And because the Leeds trolleybus system would create several vehicle stacks to facilitate the movement of the trolleybus, any reduction in bus pollution on the streets would be offset by an increase in exhaust fumes from stationary cars, vans and lorries.
(photo courtesy of freefotouk)asd