Whilst planning their new home in 2009, the German family were certain that they needed a PV system. Their goal was to use their self-generated solar power directly at home to live sustainably, minimising their impact on the environment as well as saving big on energy costs.
In the new house, the electricity supply has gone green and is self-generated. The 13.455 kWp PV system generates around 11,033 kWh of solar power per year and supplies electricity for the washing machine and dishwasher from their own roof. Self-generated green power is also used to provide warm water and energy for heating.
A few years ago, the Butterweck-Werner household added a storage system. This is because the climate-conscious family was bothered by the fact that solar power could no longer be used after sundown. Now the washing machine also runs in the evening on solar power.
Recently, the family began refueling with sunlight. An electric car completes their personal declaration of independence The household supplies 90 percent of its own energy, all using the power of the sun.
A nice side effect of the storage system is that the lights never go out in the Butterweck-Werner household, even if there is a power outage.
“We use solar energy for electricity, hot water, heating and our electric car. This means that we are independent from fossil fuels and rising costs. In this way, we are actively involved in shaping the energy transition.”
The Butterweck-Werner family
Because the Butterweck-Werner family are real solar power fans, they naturally like to keep an eye on their PV system. They can do so anywhere – at home, on the go and, , even on vacation. With the Sunny Portal monitoring toolthey can keep an eye on the most important system data at all times and see how much energy is being produced live as well as what is happening to it. Self-consumption and the amount of CO2 that they spare the environment with their PV system is also a key figure for the family.