The Audi A3 g-tron forms part of a new, integrated and sustainable mobility concept from the brand with the four rings. Its 1.4-liter TFSI engine developing 81 kW (110 hp) can be operated using either natural gas, e-gas generated by Audi or gasoline. In pure e-gas mode the g-tron is entirely CO2-neutral.
Audi e-gas is a synthetic methane that is produced at the Audi e-gas facility located in Werlte in Lower Saxony, Germany – the world’s first industrial power-to-gas plant. An A3 Sportback g-tron fueled by Audi e-gas is currently the most environmentally friendly form of long-distance mobility. This is because the process for generating Audi e-gas using green electricity binds as much CO2 as is released when the Audi A3 g-tron is driven in gas mode. On average the Audi A3 g-tron consumes between 3.2 and 3.3 kilograms of gas per 100 kilometers. Fuel costs at present start at around 3.50 euros per 100 kilometers.
The buying principle for Audi e-gas is straightforward and corresponds to how green electricity is distributed: Audi records the quantities of gas that the customer pays for using their Audi e-gas fuel card and ensures that exactly this amount of Audi e-gas is fed into the German natural gas network.
Customers who choose this option can obtain an Audi e-gas fuel card for a flat price of 14.95 euros per month. In addition, the costs for the quantities of gas refueled by each customer are deducted via the Audi e-gas fuel card. The card can be used to purchase Audi e-gas at over 650 fuel stations in Germany.
Prof. Dr. Ulrich Hackenberg, Board Member for Technical Development at AUDI AG, emphasizes: “In addition to our e-mobility developments, the Audi e-gas project is an important pillar of our sustainability strategy – as is the development of other synthetic fuels.” Audi is already operating a research facility for the production of Audi e-ethanol and e-diesel with its partner Joule in Hobbs, New Mexico. Moreover, the company is conducting research into the synthetic manufacture of Audi e-gasoline in cooperation with Global Bioenergies.
Fuel consumption figures Audi A3 Sportback g-tron:
CNG consumption in kg/100km: 3,3 - 3,2; Combined fuel consumption in l/100 km: 5,2 - 5 Combined CO2-emissions in g/km (CNG): 92 - 88 Combined CO2-emissions in g/km (fuel): 120 - 115