The world's first purpose-built fully electric double-deck bus was unveiled outside City Hall on Tuesday.
The new vehicle has been built by Chinese manufacturers BYD and is due to go into service next month.
The new double-deck bus will start operating on route 98 between Willesden and Holborn.
SE1 currently has a handful of electric buses on routes 507 and 521 and the those two routes are due to go all-electric this autumn.
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