London has the largest zero emission bus fleet in western Europe with more than one in nine buses now zero emission
"I'm committed to cleaning up London's air achieving net-zero carbon by 2030, and that includes delivering a zero-emission bus fleet"
Sadiq Khan
The Mayor of London
  • London's buses have the lowest CO2 emissions per passenger kilometres compared to other global cities such as New York, Sydney, Paris and Vancouver
  • TfL is on track to have a fully zero-emission fleet by 2034 and this could be accelerated to 2030 with Government funding
  • Converting London's bus fleet to zero-emission by 2034 will save an estimated 4.8m tonnes of carbon or an estimated 5.5m tonnes of carbon by 2030

The capital has now passed a major milestone of more than 1,000 zero emission buses picking up customers on the city's streets, with the 1,000th zero emission bus being normally used on route 204. This means that more than one in nine of the iconic red buses have now gone green. Since 2021, all new vehicles joining the fleet have been zero emission, helping TfL become the green heartbeat of London. In addition, all of TfL's other buses are low emission and meet or exceed Euro VI emission standards, the same emissions standard as the Ultra Low Emission Zone.

Transport for London (TfL) is currently on track to transition to a fully zero emission bus fleet by 2034 but, with continued Government investment, this target could be achieved by 2030. Since 2016, the number of fully zero emission bus routes has increased from 5 to 54, with a further 15 routes using a mixture of zero emission and low emission buses. The number of zero emissions buses on London's roads has seen an increase of over 3,000 per cent since 2016, moving from 30 to 1,000 buses.

Zero emission buses help Londoners breathe cleaner air and help decarbonise the transport network, which is crucial to TfL's work to meet the Mayor's mission to achieve net-zero carbon in London by 2030. Through the decarbonisation of London's bus network, TfL will save an estimated 4.8m tonnes of carbon by 2034 or an estimated 5.5m tonnes of carbon by 2030 with Government funding.

TfL's zero emission bus fleet is the largest in western Europe and has the lowest CO2 emissions per passenger kilometres compared to other global cities such as New York, Sydney, Paris and Vancouver. All of the new buses joining the fleet will have enhanced customer features, such as improved flooring, seating, lighting and customer information, and will meet the industry-leading bus safety standard.

TfL's investment in zero emission buses is supporting around 3,000 jobs across the UK, in locations such as Ballymena, Falkirk, and Yorkshire. By creating capacity and certainty for a wider zero emission bus market, this investment is paving the way for green national economic growth. TfL's funding pipeline for zero emissions buses also lowers costs for other local authorities by creating economies of scale.

Toxic air is one of the greatest health threats in the capital with around 4,000 Londoners dying prematurely every year as a result of air pollution. London's poor air quality is leading to children growing up with stunted lungs and people across London developing lung cancer, heart disease, and many other illnesses. Decarbonising London's bus fleet, and the upcoming London-wide ULEZ expansion, will help remove harmful emissions from London's air, making London a cleaner place for all those who live and work in the capital.

The Mayor of London, Sadiq Khan, said:

'London has a world-class public transport network and our zero emission bus fleet is setting the standard for others to follow. I'm committed to cleaning up London's air achieving net-zero carbon by 2030, and that includes delivering a zero-emission bus fleet. The decarbonisation of our bus fleet, the increases and improvements in bus services in outer London, and the new proposed Superloop will help build a better, greener London for all.'

Louise Cheeseman, Director of Buses at TfL, said:

'I am very proud that more than 1,000 zero emission buses are now operating on our iconic bus network. It is a significant moment in our journey to achieving net-zero by decarbonising our bus fleet and improving air quality across the capital. Buses remain the quickest, easiest, and cheapest way to shift trips made by cars to public transport. Buses carry up to 80 times the number of people as a car, make efficient use of road space, and cut emissions by both taking polluting private vehicles off the roads and offering up a green alternative.

'Our network's zero-emission buses don't just benefit London but the whole of the UK, creating high quality manufacturing jobs and lower costs for other regions buying new vehicles. We look forward to seeing more of our routes go green in the near future, creating a virtuous circle for those living in London and local economies across the country.'

Oliver Lord, Head of UK for Clean Cities Campaign, said:

'Zero emission buses are a triple win for our lungs, our climate and the UK economy. I'm delighted London has hit this milestone but we've still a long way to go to rid our lungs of diesel fumes. 

'There is now a clear opportunity for this government to turbo-charge the ambition of our city leaders. UK-wide investment in zero emission buses would clean up our air, increase jobs and catapult the country as a global leader in our next industrial revolution - transport decarbonisation.'

Sean O'Shea, CEO, Metroline, said:

'The 1000th electric bus is a significant milestone in the decarbonisation of London and the bus network. Metroline is proud to operate more than 100 electric vehicles across a number of routes with more to follow, transporting tens of thousands of Londoners each day on zero emission vehicles. It has been a great team effort to get to this point, with three garages already electrified and a fourth to come, and it demonstrates our continued investment and commitment to leading the way for our customers and helping provide cleaner air for Londoners with our ever-growing fleet of all-electric, zero emissions buses.'

Josh Cottell, Research Manager, Centre for London, said:

'London is on the road to more sustainable travel. We want London to have a world class transport system and be carbon neutral - cleaner, greener buses will help us get there. Buses are the most commonly used form of public transport in London, and are especially important for Londoners on lower incomes.

'To keep moving forward quickly, our research has consistently found that central government should continue to work together with City Hall and the boroughs to give people more practical and joined-up options for getting around.'

TfL has set out a bold vision for buses in the capital in its Bus Action Plan, which sets out how London's modern bus network will attract more customers and help the capital become net zero by 2030. Buses are already the most used form of public transport in the capital, and TfL - via it's Bus Action Plan - is working to create an even more attractive alternative to car use by focusing on the experience for all customers, safety and security, faster journeys, improved connections, and decarbonisation and climate resilience.

Earlier this year, the Mayor of London and TfL announced the Superloop, a network of limited-stop express bus routes that circle the entire capital - connecting outer London town centres, railway stations, hospitals and transport hubs, faster. The Superloop will create a game-changing new network of bus services and is a significant step in the Mayor's commitment to improve the bus network in outer London, adding over 4 million extra kilometres to bus services and complementing earlier plans to add over 1 million kilometres to the network. Last month, TfL launched route SL8, the very first route to carry the Superloop branding, and has since rebranded another route, SL6 which runs between Russell Square and Croydon. TfL will rebrand the two remaining existing routes this summer help customers easily identify the Superloop express services.

Notes to editors:

  • 54 routes in London are fully converted to zero-emission and 15 are partially converted
  • The routes currently running with zero emission buses are:
  • Fully converted: 7, 23, 43, 46, 49, 69, 70, 93, 94, 100, 106, 111, 125, 132, 134, 142, 153, 154, 160, 164, 173, 174, 200, 212, 214, 230, 245, 264, 290, 295, 307, 317, 319, 322, 323, 353, 357, 360, 366, 371, 398, 413, 433, 444, 484, 699, B13, C1, C3, C10, H9/H10, P5, U5, W15
  • Partially converted: 17, 63, 65, 80, 119, 163, 180, 183, 184, 204, 213, 281, 312, 359, X140
  • In London, adult pay-as-you-go customers can take advantage of the Hopper Fare, which permits multiple bus journeys within the hour for the price of a single fare, as well as weekly capping. Over-60s living in London boroughs are eligible to travel on TfL services free of charge from 09:00 weekdays and any time at weekends and on bank holidays
  • London's bus network is highly accessible and affordable, with over 90% of people in London within 400m of a bus stop