A French household consumes an average of 6,000 to 8,000 kWh/year. With 9 kWp facing south, the estimated yield reaches 9,000 to 12,000 kWh/year depending on the region — creating a significant surplus that the battery stores, that you inject into the grid, or that you can maximise through V2G. The Gateway HomeMax SP 12K handles up to 12 kWp at the input: you have room to increase the PV surface area.

The SigenStor accepts stackable 5 kWh BAT modules, up to 54 kWh. When you place your order, our team sizes the optimal capacity according to your consumption profile, schedule and equipment (heat pump, EV, swimming pool). This customised sizing avoids over-investment and maximises ROI from the first year.

The 9 kW single-phase format is ideal for households already equipped or planning to add these systems. An air-to-water heat pump consumes 2,000 to 4,000 kWh/year; a 7 kW charging station charges an EV in 6 to 10 hours of solar production; a 50 m² swimming pool adds approximately 1,500 kWh/year. The mySigen EMS coordinates these uses to maximise self-consumption at all times.

In island mode, the SigenStor powers priority circuits from the battery and panels without interruption. At 9 kW of output power, even the heat pump can continue operating — unlike 3 or 6 kW solutions that must shed equipment. V2H mode adds the electric vehicle battery as an additional reserve.