With a photovoltaic system on your roof, you make yourself independent of electricity tariffs or public charging stations. However, if you want to charge with pure solar power, your photovoltaic system must be large enough and be able to provide at least 1.4 kW of solar power in addition to your current power consumption. If it produces less electricity, the rest is automatically drawn from the public grid during the charging process.
Charging at work
Is it possible to charge your private electric car or plug-in hybrid at your workplace? Why don't you ask? If employees can charge their cars at a permanently installed facility in the company, the charging current is even tax-exempt. If your employer doesn't offer this yet, it's worth asking. Not only does it score points in terms of environmental protection and sustainability - it can even earn money if it is made available to the public.
What about thunder and lightning?
You can charge your electric car in the rain and even during thunderstorms. Even when parked outside, it is equipped with a surge protection device - just like private and public charging stations. So there is no danger, even in the highly unlikely event that lightning strikes the charging station or your car. Nevertheless, you should still exercise the usual caution during a thunderstorm.
All modern electric cars are powered by a lithium-ion battery. This stores direct current (DC). However, our European electricity grid only supplies alternating current (AC), which is why the on-board charger in the vehicle takes care of the conversion to direct current. This is different with a DC fast charging station: here, the alternating current from the grid is converted directly into direct current - which is why the charging process is so much faster.
All you need to charge your electric car at a conventional socket is the standard type 2 charging cable that comes with your Opel. With a power socket, you always have a charging option close by, for example when you visit friends or family. However, the better way to charge your electric car at home is with a 3-phase wallbox. It makes charging safer and also significantly faster.
You can charge your electric car particularly cheaply at a wallbox at home, because then you pay the currently valid electricity price per kilowatt hour. At a public charging station, the costs depend on the tariff of the energy supplier or provider and also on whether you are charging with alternating current or direct current. At a DC fast charging station, you can charge your battery to 80% in around 30 minutes - but this costs significantly more.