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    S3 Sedan

    More dynamic. More striking. Better equipped. The all-new S3 Sedan displays phenomenal performance inside and out.

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    More dynamic. More striking. Better equipped. The all-new S3 Sportback displays phenomenal performance inside and out.

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    Dynamic design, outstanding fun. The new Audi Q2.

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    Versatile top-class SUV. The Audi Q7.

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    The new face of the Q family: the Audi Q8

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    Performance in a new dimension. The Audi RS Q8.

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  • TT Coupé
    TT Coupé

    The Audi TT Coupé. Pure emotion packaged in form and function. Pure consistency in quality and efficiency. Pure sportsmanship brought to the road.

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    TTS Coupé

    The Audi TTS Coupé is bursting with sports car genes. Dynamic driving even controlled - by the new quattro permanent all-wheel drive. The design is individualized by S-specific elements and instantly recognizable. The innovative technologies in the drive, as well as new control and display concepts - including the Audi virtual cockpit - characterize the Coupé.

  • TT RS Coupé
    TT RS Coupé

    Ultimate sportiness. The Audi TT RS Coupé.

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    TT RS Roadster

    Experience freedom, feel the power. The Audi TT RS Roadster.

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g-tron
Audi | Hong Kong Official Website Technology g-tron

Power-to-gas plant

In June 2013, Audi opened the e-gas plant at Werlte in the Emsland region of Germany. This makes Audi the first automobile manufacturer to develop a chain of sustainable energy carriers. It starts with green electricity, water and carbon dioxide. Its end products are hydrogen and synthetic methane: Audi e-gas.

The e-gas plant operates in two process steps: electrolysis and methanisation. In the first step, the plant uses surplus green electricity to split water into oxygen and hydrogen in three electrolysers. The hydrogen could one day be used to power fuel cell cars. At present however, there not a widespread infrastructure. For this reason, the second process step follows immediately: methanisation. The hydrogen reacts with CO₂ to produce synthetic methane: Audi e-gas. It is practically identical to fossil natural gas and is distributed to CNG filling stations across Germany through an existing infrastructure, the German natural gas network. The plant began feeding Audi e-gas into the grid in autumn 2013.
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The Audi e-gas plant produces around 1,000 metric tons of e-gas per year, binding around 2,800 metric tons of CO₂. This roughly corresponds to the amount that a forest with more than 220,000 beech trees absorbs in one year. The only by-products are water and oxygen.

The Audi e-gas project goes far beyond the automotive industry. It shows how large quantities of green electricity can be stored efficiently and independently of location, by transforming it into methane and storing it in the natural gas network, the largest energy storage facility in Germany. With the e-gas project, Audi is a part of and a driver of the energy revolution. Meanwhile major German energy suppliers have picked up the idea of power-to-gas cogeneration and are following Audi with initial projects of their own.

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