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The PV system on the roof of the Seeger family home is currently producing a steady flow of electricity. Marek Seeger looks at the SMA Energy app on his smartphone to check the state of charge of his electric car. It’s ready to go, so he can take the children to their sports club. The laundry and the dishes have already been washed, too – all thanks to solar power.
Power, heat, transportation – in the Seeger household, everything is electrified. The Seegers use the solar power generated during the day to run their electrical home appliances and to provide heat and hot water via a heat pump, as well as to charge their electric car. In the evenings, or when sunshine is in short supply, the electricity comes from their battery-storage system.
The SMA Energy System Home – the essentials
• PV system currently delivering an output of 9.75 kWp generating roughly 9,000 kWh/a (with plans for an upgrade to 25 kWp)
Sunny Tripower Smart Energy hybrid inverter with integrated battery-backup function and compatible battery
SMA EV Charger for electric vehicle
Energy management with Sunny Home Manager 2.0
To make the best possible use of home-generated solar power for electricity, heat and vehicle charging.
The modular SMA Energy System Home combines the generation of solar power with the heat pump and electric vehicle charging. With the SMA Energy app, you can keep track of your system at all times.
- Environmentally friendly electricity supply
- Energy independence, with up to 100 percent self-sufficiency in the sunny months from March to October
- Savings of up to 80 percent on electricity costs
“Everything is electrified. That’s why we opted for a PV system from the outset. And so that it all makes sense, we paired it with a battery-storage system. That way, we are as independent as we can be from the external electricity supply and also have an emergency power supply. It’s great fun.”
It was always the plan to optimize the generation of solar power at all times of day, even when the house was still being built. The east/west orientation of the roof means that the sun shines on the PV modules from dawn to dusk. The family deliberately chose not to include extras such as a chimney or a satellite dish so as not to cast shadows on the PV modules.
The smart energy management system in the Seeger household knows exactly how much electricity their PV system is generating, how much energy the home appliances are currently demanding and when it is necessary to obtain electricity from the utility grid. The Sunny Home Manager 2.0 manages the flow of energy in the home in such a way that the solar power is used to its full potential at all times and visualizes it through the Sunny Portal monitoring tool and in the SMA Energy app. That means the Seegers can easily view the data for their PV system whenever they want. This allows them to cut their energy costs by as much as 80 percent.
“In the app, I can see exactly how much electricity I’m currently consuming and how much I’m generating. That allows me to plan when I do the laundry or charge my electric car, for example.”
When the PV system generates more electricity than the Seegers need for their own self-consumption, the unused energy is fed into the grid. That allows them to generate additional income.
The modular SMA Energy System Home pays off for the Seeger family in three ways:
The PV system on the roof and the energy storage system make the family independent and mean they do not have to obtain electricity from the utility grid.
They supply their home with green solar power generated right there on the rooftop, making the energy transition a practical reality.
Thanks to the integrated battery-backup function, the supply of electricity to the home remains reliable even when there is a utility grid outage.
If there is ever anything that doesn’t look quite right, SMA Smart Connected, a free and automated inverter monitoring system, will notify the Seeger family and the installer and also send the installer an informative failure analysis. Consequently, any failures can be rectified rapidly. The Seeger family’s ultimate aim is to play their part in helping to shape the energy transition with their own home.