EV surplus charging with PV – this is how intelligent charging works
What does surplus charging mean? Surplus charging means that an electric car is only charged with surplus solar power. The electricity is used dire...
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More and more households are combining a photovoltaic system with an electric car.
The self-generated solar power can be used directly to charge the vehicle.
This offers several advantages:
• Lower electricity costs
• Greater independence from the electricity market
• Use of renewable energy
A PV system produces electricity during the day. If this electricity is not
fully consumed in the household, a surplus is generated.
This surplus can be used for:
• Household appliances
• Heat pumps
• Wallboxes
This ensures optimal use of self-generated electricity.
With surplus charging, the electric car is only charged when surplus
solar power is available. This prevents the need to draw electricity from the grid.
An energy management system can automatically detect when solar power is available.
The wallbox is then automatically activated and uses the surplus electricity.