Smart wallbox: what it does, how load balancing works and when it pays off A smart wallbox protects the main fuse, charges with solar surplus, meters consumption and schedules charging into a cheap tariff. The EUR 280 difference to a basic unit comes back through a subsidy or one winter. Photovoltaics Wallbox 12 Sept 2026
Charging an electric car from photovoltaics: how to use rooftop surplus PV surplus sells for EUR 0.04 to 0.08, grid electricity costs EUR 0.16 to 0.28. A smart wallbox charges the surplus into the car and saves hundreds of euros a year. How it works and what you need. Guides Photovoltaics Wallbox 12 Sept 2026
