On the sunny side
Producing, storing and managing energy himself: Bernd Ritter decided to power his household and family vehicles using solar energy. By switching to an almost fully autonomous energy management system, the Audi manager aims to play his part in shaping a more positive future. #chargedwithpassion
The sun is always there and has enough power to supply us with the energy we need. Why shouldn’t we use it?“
Sun electricity for vehicles
Thanks to their household power plant, the family can supply home-produced electricity to the house and their vehicles, which until recently included an Audi Q7 e-tron quattro. “The Audi Q7 e-tron quattro was a great experience and loads of fun to drive.” Mr Ritter drives a plug-in-hybrid instead – the Audi A3 Sportback e-tron – as well as a fully electric vehicle, the VW e-Up! . Photovoltaic system, batteries and electromobility – it’s still a rare combination, but that could soon change.
The example he has set outside Ingolstadt shows how the elements in this kind of modern concept intertwine: the household power plant is augmented by charging devices for the Audi vehicles. Charging is easy and convenient thanks to a specially installed industrial power socket and the Audi Wallbox that goes with it. The vehicles’ batteries are charged up overnight – using solar power produced during the day, naturally.
The charging station knows when batteries are full and automatically stops the charging process. An Audi A3 Sportback e-tron needs around 3.5 hours to charge fully using a regular domestic socket, and around 2.5 hours using an industrial one.
The Audi Q7 e-tron quattro:
The world’s first plug-in-hybrid model with a six-cylinder TDI engine and quattro drive has been available in most European markets since mid-2016. The Audi Q7 e-tron quattro combines the benefits of electric driving with those of the combustion engine. It accelerates from zero to 100 km/h in 6.2 seconds and consumes 1.9 litres of diesel per 100 kilometres (combined NEDC).
- electric mode up to 56 km // 275 kW (373 PS) // 700 Nm
Fascination electrical driving
Bernd Ritter is currently the project manager of a forthcoming Audi e-tron model and has worked at Audi for the past 20 years. A degree dissertation enabled him to join the development/electrical business unit. His career has since been shaped by vehicles that showcase the benefits of electric driving. The trained engineer takes his passion for his work home with him. As it stands, plug-in hybrid vehicles are ideal for his family’s needs. For him, range and a good charging infrastructure are they key to a future in which cars are powered by electricity alone.
The Audi A3 Sportback e-tron:
This premium compact car with a plug-in hybrid drive system offers unlimited everyday capability. It unites the strengths of its electric drive system with the benefits of a combustion engine and combines electric driving with high range thanks to its powerful four-cylinder unit. It can drive for up to 50 kilometres in electric mode under NEDC.
“I drive an average of 20 kilometres a day, for which I charge up at home and at work,” Bernd Ritter says. It’s a range that allows him to commute without producing emissions locally using the electric mode of his e-tron. And without producing much noise either.
Save and rewin energy
Electromobility is evolving bit by bit. It’s a gradual process and it can’t all work perfectly straight away. We’re going to see a lot of progress.
Household power plant statistics
|10 kWp||power output|
|2 vehicles||Q7 e-tron quattro & A3 Sportback e-tron|
10,500 kWh total //
average 880 kWh per month
|average 710 kWh per month||Consumption|
|5.300 kWh||Mains feed|
|12 months||Time period|
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