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ELECTRIC CARS MORE POLLUTING THAN PETROL MODELS: NEW REPORT

18-04-2016
by 
in 

A report by an investment research firm has revealed that electric “green” vehicles may be harming rather than helping the environment in Hong Kong.

The report found that electric vehicles in Hong Kong could be adding “20 per cent more” carbon to the atmosphere than regular petrol ones over the same distance – after factoring in the city’s coal-dominated energy mix and battery manufacture, a new research report found.

Investment research firm Bernstein also claimed that by subsidising electric vehicle purchases, the Hong Kong government was effectively “harming rather than helping the environment” at the expense of the taxpayer.

The report discloses that the author maintains a “long position” in oil company BP, while electric vehicle supporters are quick to dismiss its claims.

“The policy is to encourage drivers to be green, but they are actually subsidising vehicles that create more emissions of CO2 and particulates from power plants,” Bernstein senior analyst Neil Beveridge told the South China Morning Daily.

“Electric vehicles can work in places where there is a very low carbon intensity in electricity generation, but more than 68 per cent of electricity (on Hong Kong Island) comes from coal.”

The researchers compared emissions over 150,000km for a BMW 320i using petrol and the new electric Tesla Model 3 and found the latter to be capable of emitting 27 tonnes of carbon – 20 per cent more than the BMW.

The analysis took into account carbon intensity – emissions per unit of GDP cited by HK Electric, which supplies Hong Kong and Lamma islands – fuel efficiency of the car, carbon dioxide produced over 100km, generating the electricity needed at the power plant as well as producing the 85 kilowatt-hour battery.

Fuel-related emissions alone for the Tesla totalled 21.3 tonnes, while building the battery accounted for 5.2 tonnes. By contrast, the BMW’s total fuel-related emissions – essentially the burning of fossil fuel – amounted to emitted 20 tonnes of carbon, while the oil extraction and refining for the petrol generated 2.2 tonnes.

Beveridge has urged the government to do more to reduce carbon in the fuel mix or to wait for battery technology to improve before attempting to push for mass adoption of electric vehicles.

Hong Kong has one of the world’s highest penetration of electric cars among new private car purchases. The number has grown from just 100 at the end of 2010 to 4,400 as of February.

Tesla has 70 per cent of the market. 

Responding to enquiries, a Tesla spokesman said that the data cited in the report showed that CO2 emissions in electric cars were indeed "lower and far lower" than in gasoline-powered cars and “an incorrect report from an oil company investor does not change that.”

“Because of oil extraction, distribution, and refining, approximately 25 per cent more has to be added on top of that to calculate the real carbon footprint of gas-powered cars,” the spokesman added.
 

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