The Metropolitan Police Service (MPS) in London is launching a zero-emissions programme for its vehicle fleet and has already started trialling hydrogen-powered vehicles.

The programme aims to reach zero emissions by 2050, which is in line with a law passed in June to ensure the entirety of the UK meets this target.

The MPS said it is “embracing clean energy technology” and is continuously exploring new ways to reduce emissions via alternative fuel and energy.

So far its fleet of 21 hydrogen-powered Toyota Mirai cars have clocked up over 260,000 emission-free miles.

Ten of these cars have been partly funded by the European Commission as part of the Fuel Cells and Hydrogen Joint Undertaking research programme.

Seth Finkelstein, the Met’s fleet services air quality lead, said: “Alongside our existing fleet of hybrid and electric cars, we want to explore whether hydrogen power could also become part of our future.”

He said that the Met has more than 500 zero- and ultra-low-emission vehicles currently in operation, including hybrids, fully electric and hydrogen.

“We are striving to increase this amount as we move forward and are continuously engaging with vehicle manufacturers around new technologies,” Finkelstein said.

“It should be noted, however, that as new technology is rolled out there are always barriers to overcome.

“In this instance, it’s the availability of hydrogen refuelling stations that will need to be addressed to help further the use of these vehicles.”

The MPS started trialling lower-emission vehicles in 2017 when it bought 30 BMW i3 Range Extender which feature hybrid engines (pictured). London Mayor Sadiq Khan has made tackling air pollution one of his highest priorities since taking office and is working with the police on the low-carbon plans.

Last week The Institute for Fiscal Studies warned that electric cars and increasing fuel efficiency in vehicles could deplete the tax money the Government raises through fuel duties.