FAQ

With the performance data of the 2022 solar roof tiles (10 watts per tile), the Autarq system achieves 120 watts per square metre.

Our recommended retail price is € 350 per square metre excluding installation.

The purchase cost for electricity from the public grid was moren than 50 ct/kWh in 2020 – the trend has been rising ever sice. For this reason – and because the feed-in tariff for solar power is dropping every month – the self-consumption of self-generated solar power is particularly attractive.

Normally not. The glass surface of Autarq solar roof tiles is slightly structured and refracts light in different directions (prism refraction).

Yes, the cables of an Autarq system can be recycled.

As a rule of thumb, 12 solar roof tiles are installed per square metre.

The feed-in tariff is decreasing monthly, so it's becoming ever less important for owners of photovoltaic solutions. For photovoltaic systems registered in 2020, the feed-in tariff was just over 10 cents per kWh (system output under 10 kWp). Against this background – and with regard to rising energy costs – the self-comsumption of solar power becomes all the more attractive.

During a vacation, the solar power generated on the roof first supplies the house, which has a certain base load: Domestic appliances such as refrigerators and freezers and devices in stand-by mode usually consume about 300-400 W per day. The solar power surplus is automatically fed into the public grid.

The German concept of tenant power models is to consume locally produced electricity locally. The advantages: On the one hand, the electricity grid is relieved. On the other hand, tenant power providers and tenants benefit directly, as the self-produced solar power is cheaper than electricity from the public grid. These attractive models can certainly also be used with an Autarq solar roof.

In practice, a battery storage system is worthwhile if not all of the solar power generated during the day is consumed directly. A battery storage system thus enables the use of solar power after sunset. It also ensures that solar electricity can be used during the day even in changeable weather. Such weather conditions occur frequently in Germany, so a battery storage system ensures the constant availability of solar power.