Scientists have discovered that an electric self-driving taxi in 2030 will cut the amount of greenhouse gas emissions by 90% per mile lower compared to a privately operated petrol-powered car.
The study was conducted by Lawrence Berkeley National Laboratory. Researchers stated that its contribution to greenhouse gases would also be up to 82% lower than that of a hybrid vehicle.
Lead scientist and author, Dr Jeff Greenblatt, stated that amongst all the variables they found the use of autonomous vehicles as part of a shared transit system, which appeared to be the prime pedal that indicated a reduced energy use per mile. An economic analysis was also completed in order to determine how cost-effective autonomous taxis would be.
Scientists calculated that if 5% of 2030 vehicle sales (about 800,000) comprises autonomous electric taxis, it would salvage almost seven million barrels of oil per year. This will also reduce annual greenhouse gas emissions by between 2.1 and 2.4 million tonnes of CO2 per year. This is the emissions savings from more than 1,000 two-megawatt wind turbines.
The per-mile greenhouse gas emissions of a self-driving electric taxi between 2030 would come down to 63 percent to 82 percent lower compared to the estimated 2030 privately owned hybrid vehicle and 90% lower than a 2014 gasoline-powered private cars.
Moreover, the scientists figured out that the net energy effect of uniting ride-sharing with right-sized autonomous taxis. For example, if a person rides 10 percent shifts to two-person rides, the total miles traveled would drop to 3.1 percent while average energy consumption (due to the bigger sized vehicle) would rise 0.6 percent, causing in a net energy decrease of 2.5 percent.
At present, the autonomous technology planned to increase as much as $150,000 (£96,150) to the cost of a vehicle. Self-driving cars are also efficient with their power to drive closely behind other autonomous cars in lowering wind resistance (“platooning”), and smoother acceleration and braking.
Transportation is the fastest and largest growing source of carbon emissions and is responsible for almost 2,300 megatonnes of CO2 in 2010.
