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Audi partnering with SMA Solar and Hager Group to connect e-tron EV to house

Audi is teaming up with two new partners to connect its electric model Audi e-tron with the user’s home infrastructure. Intelligent interaction with home energy management systems from SMA Solar Technology and the Hager Group enables cost-optimized charging, including using sustainable photovoltaic power if desired.

Audi offers various solutions for charging at home, which is where the majority of all charging operations take place. The standard compact charging system enables charging with an output of up to 11 kW. The optional connect charging system doubles the output to 22 kW, to which end the Audi e-tron is equipped with a second, optional charger. The connect charging system also connects with the infrastructure via the home Wi-Fi and, in conjunction with a home energy management system (HEMS), enables intelligent charging functions.

With the connect charging system and a suitably equipped HEMS, the customer can use variable electricity tariffs to charge the Audi e-tron. This system can charge the battery when electricity is less expensive while simultaneously considering individual mobility requirements, such as departure time and charge level. The connect charging system gets the necessary rate information either from the HEMS or from information the customer enters into the myAudi portal. If the home is equipped with a photovoltaic system, the customer can optimize the charging process to prefer the electricity generated by the system for charging the Audi e-tron. The electric SUV does this by considering forecast phases of sunshine and the current flow of electricity at the home’s connection point to the public grid.

The intelligent charging function also protects the customer in the event of a blackout. The customer always charges with the maximum available capacity that the home electrical system and the car allow. The charging system also considers the power requirements of other consumers to avoid overloading the home electrical system and thus tripping the master breaker. The customer can check their individual charging statistics and charging progress in the myAudi portal and myAudi app. Besides charging times and the amount of electricity charged, the system also provides detailed information about the corresponding costs. This data is stored on a secured server, and the portal offers both analysis and export functions.

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