A Scottish entrepreneur behind a range of hydrogen vans is planning a 400-mile drive from Glasgow to London to show off the green-energy vehicles.
Emil Rangelov's fleet of futuristic H2Vans are designed to drive for hours without refuelling and their only exhaust will be will be drinkable water from vapour.
The planned cross-country trip in the summer of 2019 - without stopping to refuel - is intended to launch a green transport revolution.
The van will be able to drive for up to 500 miles on just one tank of hydrogen, and can be refuelled in just six minutes.
Emil Rangelov's fleet of futuristic H2Vans are designed to drive for hours without refuelling and their only exhaust will be will be drinkable water from vapour
An artist's impression of the driver's cab in one of the Scottish tycoon's goods vehicles which will be capable of travelling up to 500 miles without needing to stop for refuelling
Emil Rangelov, of HVSystems in Glasgow, is developing a fleet of hydrogen powered trucks to be built in Scotland. His planned cross-country trip in the summer of 2019 is intended to launch a green transport revolution
'This will be the first commercial vehicle with a carbon chassis frame on the market - lightweight, durable, sustainable, recyclable, and with many advantages that current vehicles don't have,' Mr Rangelov said.
'We're trying to build sustainable vehicles on the emissions side of things but also the way the vehicles are designed and built, with significant safety advantages compared to current vehicles on the market.
''If you look at a battery-powered electric vehicles they're usually quite heavy so that reduces the payload, but with a hydrogen system, you don't have that problem.'
Mr Rangelov hopes that the trip will promote the feasibility of hydrogen-fuel technology, with no other green vehicle of its size currently capable of travelling such a distance without having to recharge.
The H2Van uses a fuel cell that converts hydrogen and oxygen into water during a process that produces electricity to power the engine.
The only other by-product is heat and the vehicle can travel up to 500 miles in one journey and can be refueled in just six minutes.
The company said that 139 public hydrogen refuelling stations have opened across Europe.
But hydrogen infrastructure is lacking in the UK, with Scotland's only refuelling station in Aberdeen and service station sites at Beaconsfield, Buckinghamshire and Cobham in Surrey.
They are also planning to set up private refuelling spots for companies who use the hydrogen-powered vans.
HV Systems are also working on a fleet of heavy goods vehicles called HV Trucks, with a range up to 800 miles even with loads of 44 tonnes.
The company said on its website: 'Hydrogen is the simplest, smallest and most abundant substance in the universe.
'It is clean, safe, colourless, odourless, tasteless, non-toxic and non-poisonous.
'H2Van will allow small and large businesses to significantly reduce their carbon emissions and make our roads much safer places to be.
'Short, medium and long wheel-bases will allow it to cover applications from three to eight tonnes.
'A side door allows access to both the driver's cabin and the good storage area. The aerodynamic shape will increase fuel efficiency.'
A diagram of one of the trucks shows the hydrogen tanks which only need refuelling every 500 miles in a process which takes only six minutes
CGI of a truck developed by Emil Rangelov, of HVSystems in Glasgow, and his partner Abdul Waheed, which use hydrogen. The company said that 139 public hydrogen refuelling stations have opened across Europe, including in the UK
Currently, hydrogen is harnessed through steam reforming natural gas and electrolysis, and Mr Rangelov believes hydrogen can be vital in offsetting fossil fuel consumption and provide energy independence.
He said: 'We all talk about being energy independent but currently compressed natural gas (CNG) is supplied by countries like Norway, Russia and the US.
'Currently our wind, solar and tidal power have a significant overproduction that we cannot store and utilise - this is a big problem.
'When you store hydrogen, unlike electricity, it can offer energy independence to the whole country.
'You can use hydrogen fuel for transportation and heating for homes - we can use the exact same piping network.'
Although hydrogen is highly flammable, notorious for the Hindenburg airship disaster in 1937, Mr Rangelov insists the technology is safe, having had the H2Vans carbon fibre fuel cylinders bulletproof tested, crash tested and fire tested.
Hydrogen has attracted widespread interest in the Far East, with China, Japan and South Korea interested and companies such as Hyundai and Toyota investing in fuel cell technology.
Mr Rangelov has been invited by the Chinese government regarding hydrogen fuel and is set to visit the country next month, while his company has teamed up with fuel cell developer Ballard and cylinder giant Luxfer.
He said: 'Hydrogen's starting to get traction and is a silent revolution, it's the ultimate energy carrier which produces zero emissions.'