For your food shopping, you have multiple options: "Carrefour Market Butgenbach" (94 minutes by foot or 11 minutes by car), "Aldi Bütgenbach" (99 minutes by foot or 12 minutes by car).
The closest bus lines are TEC Liège - Verviers - 406 - St-Vith - Wallerode - Amel - Büllingen - Rocherath, TEC Liège - Verviers - 390 - Verviers - Rocherath with a stop 3 minutes away by foot.
In fewer than 5 minutes, you can find a charging station ("Wirtzfeld Valley Guest House") for your electric car.