Mobile superchargers to begin roaming London streets

London will soon benefit from new mobile superchargers that can be simply summoned by an app when owners can't find an unoccupied charger in the city.

According to Russian start-up, L-Charge, the roaming superchargers will begin operating in early 2022 in the British capital and claims to be capable of providing an 80 per cent top-up for most vehicles in around 5-7 minutes.

Already operating in Moscow, L-Charge says its fleet of mobile chargers are powered using either liquified natural gas or hydrogen, or a mixture of the two, so do not put extra pressure on a country's national grid.

L-Charge says it hopes, following recent investment, it will expand its production of its mobile superchargers to a fleet of 2000, although it's not confirmed what part of the world they will operate.

Each mobile charger is claimed to cost around $US200,000 ($A280k) to build and should be capable of charging up to 25 vehicles a day.

For now, L-Charge is thought will run just two of its mobile superchargers for London that will be powered by natural gas – that's claimed to emit three times less CO2 than the average diesel car when in use.

When launched next year, L-Charge says it will see electricity at the rate of 80 cents per kilowatt per hour ($A1.25 per KWh) which is currently around 1.5-2 times more than its rivals, but hopes electric car owners will appreciate its service's speed and convenience.

The UK currently is claimed to have around 705,000 plug-in vehicles, of which more than 365,000 are full pure-electric says research from ZAP-MAP app. In the UK, not including home chargers, there's are 28,000 public charges, of which over 9000 are in Greater London.

With parking at a premium in central London, some EV owners are reporting that a lack of available chargers in prime locations are due to owners using a charger even though their vehicle is almost fully charged, blocking it for others more in need.

As well as offering mobile superchargers, L-Charge has also developed its temporary stationary superchargers that take just one day to install in a car park or servo.

Running on either liquified gas or hydrogen, the pop-up superchargers are claimed to be capable of topping-up around 288 cars a day and can support the existing power grid in peak hours.