Fuel Usage Of Electric Vehicles

1389 WordsMay 6, 20176 Pages
Introduction In 2015, transport energy demand in New Zealand was up 2305.56 GWh, the largest annual increase in 20 years (MBIE, 2016). This energy came from non-renewable fossil fuels, and as such is not sustainable in the long term. The subject of this research is to investigate the impact of targeting 20% of the light passenger fleet being electric. The current electric vehicle fleet is less than 1% of the light passenger fleet, which consists mainly of petrol and diesel vehicles (Ministry of Transport (MoT), 2016). If the New Zealand government hopes to increase this figure to 20%, one of the main driving factors is reducing fossil fuel consumption. At face value, electric vehicles are the solution to reducing fossil fuel usage in the…show more content…
Vehicle fleet data (MoT, 2015) reveal that 29,249 million kilometres were travelled by 2,811,703 light passenger vehicles (LPV) on petrol. Hence, the average km travelled per LPV was:29,249 million kilometres2,811,703 LPV=10402.69 km/LPV The average light petrol fleet fuel economy in 2015 was 9.59 L(petrol)/100km (MoT, 2015). Thus, on average, each LPV used: 10402.69 km/LPV9.59 L(petrol)/100km =997.91 L(petrol)/LPV Hence, the total petrol consumed by 20% of vehicles in the LPF is: 997.91 L(petrol)/LPV603,624 LPV=602.36 million L(petrol) Consequently, this means that electric vehicles will save about 600 million litres per year if they replaced 20% of the LPF. Furthermore, in terms of CO2 emissions this equates to: 22.9619.59 L/100km10402.69 km/LPV603624 LPV=13,826,796.2 kgCO2 not emitted from petrol consumption per year. Total fossil fuel offset While electric vehicles do not directly burn fossil fuels, electricity production does. As a result, the total fossil fuel offset from electric vehicles is less than the fossil fuels burned when using petrol vehicles. A popular electric vehicle in NZ is the Nissan Leaf (MoT, 2017). The following calculations use the specifications of this car, which has an energy consumption rate of 18.7 kWh/100 km (US Department of Energy, 2017). For an electric vehicle (EV) to travel the same distance annually as a typical light passenger petrol vehicle, the amount of energy consumed is: 10402.69 km/EV18.7 kWh/100
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