Skip to main content

UK trial of electric cars proves they are greener

Experts leading a major three-year trial into the impact of electric vehicles and the role they could play in our transport systems of the future, have shown that rolling them out across our city’s roads would protect both our health and the environment. Data gathered and analysed by transport experts at the UK’s Newcastle University shows that daytime air pollution levels in our towns and cities regularly exceed the Government’s recommended 40µg m-3 (21 parts per billion) for prolonged periods, putting peo
June 14, 2013 Read time: 3 mins
Experts leading a major three-year trial into the impact of electric vehicles and the role they could play in our transport systems of the future, have shown that rolling them out across our city’s roads would protect both our health and the environment.

Data gathered and analysed by transport experts at the UK’s 5986 Newcastle University shows that daytime air pollution levels in our towns and cities regularly exceed the Government’s recommended 40µg m-3 (21 parts per billion) for prolonged periods, putting people’s health at risk.

Now the SwitchEV study, the first of its kind in the UK, has shown that not only could electric vehicles reduce transport-related pollution in our cities, they also produce less CO2 per km than a combustion engine, even when the pollution associated with electricity generation at power stations is taken into account.

Funded by the UK’s innovation agency, the 2231 Technology Strategy Board, the three-year investigation is part of a major US$16.7 million trial investigating the impact that electric vehicles could have on the environment, our transport systems and driver behaviour.

Using in-vehicle loggers, details such as distance travelled, route, driving behaviour and re-charging times have been recorded and analysed for over 71,600 electric vehicle journeys and 19,900 re-charging events.

The team found that for all the electric vehicles in the study, their carbon efficiency was better than an equivalent internal combustion (IC) engine vehicle. Charging during off-peak times, when less carbon intensive and renewable energy sources are being used to power the grid, together with more efficient driver behaviour would reduce this carbon output even further.

And because electric vehicles produce zero exhaust gases, introducing more of them to our cities’ roads would drive down pollution in the most congested, and often highly populated, areas, such as city centres and around schools.

Presenting their findings, the team led by Future Transport Systems and Newcastle University together with 838 Nissan, Avid Vehicles, Simon Bailes Peugeot, Smith Electric Vehicles and 5322 Liberty Electric Cars, say the study has proved that electric vehicles are set to play a key role in our transport systems of the future.

Pollution levels in Newcastle were analysed using data from the air pollution monitoring station outside Newcastle Civic Centre.

The Newcastle University team has now received funding to continue the SwitchEV project for a further year and will explore how CO2 emissions can be reduced still further, charging at off peak times through the Smart Grid project.

Related Content

  • February 27, 2015
    UK Government funding for plug-in vehicle infrastructure
    A wave of charge-points to support the fast-growing popularity of plug-in vehicles will be installed across the UK after the government set out US$49 million of infrastructure support up to 2020. Homes, hospitals, train stations and A-roads will be some of the locations for further charge-points to maintain Britain’s position as a global leader in this cutting-edge technology. The support compliments the fast-growing popularity of ultra low emission vehicles (ULEVs) with grant claims rising four-fold in 20
  • October 5, 2012
    Norwegian study finds electric cars 'pose environmental threat'
    According to a study by the Norwegian University of Science and Technology, electric cars might pollute much more than petrol or diesel-powered cars. Researchers found greenhouse gas emissions rose dramatically if coal was used to produce the electricity. Electric car factories also emitted more toxic waste than conventional car factories, claims their report in the Journal of Industrial Energy. However, in some cases electric cars still made sense, the researchers said.
  • November 23, 2018
    Cut freight deliveries – improve Southampton’s air quality
    Taking the pressure off cities’ road networks can have a beneficial effect on the environment. David Crawford looks at a new economic model which seeks to quantify the societal effect of freight traffic in Southampton, one of the UK’s five most polluted cities Cuts of 60% or more in volumes of freight deliveries are being predicted - along with badly-needed improvements in air quality - from a load consolidation scheme currently being introduced in the UK port city of Southampton. The forecasts are based o
  • October 2, 2018
    Shock therapy: jolt for EV charging needed
    As sales of electric vehicles accelerate, the growth of charging infrastructure is in need of a big boost. Graham Anderson reports on whether Europe is up to it. Utilities, technology companies and vehicle manufacturers are battling to put in place new charging networks for electric vehicles (EVs) across Europe in response to a predicted dramatic surge in demand. Market experts believe that rapidly falling battery costs – which make up about one third of the costs of an electric car – and growing