It is possible to set a start-up power level (specified in kilowatts/kW). This must
be reached by the photovoltaic system before the Wattpilot starts charging the
car with the minimum current.
It is possible to set a 3‑phase power level (specified in kW). This must be reached
by the photovoltaic system before the Wattpilot switches from 1‑phase to
3‑phase charging.
The settings for the start-up power level and 3‑phase power level can be made
under Cost optimisation in the Fronius Solar.wattpilot app.
The power level can only be regulated in increments of 1 ampere. The table be-
low lists the charging current in amperes (A) and the corresponding charging
power for 1‑phase and 3‑phase charging in kilowatts (kW). 1-phase in 0.23 kW in-
crements, 3-phase in 0.69 kW increments. The values are based on the assump-
tion that the voltage is exactly 230 or 400 V.
-
Example: The charging current is increased by 1 A to 7 A.
-
1‑phase: 1.38 kW + 0.23 kW = 1.61 kW
-
3‑phase: 4.14 kW + 0.69 kW = 4.83 kW
Charging cur-
rent (A)
6 8 10 12 14 16 20 24 32
1-phase [kW] 1.38 1.84 2.3 2.76 3.22 3.68 4.6 5.52 7.36
3-phase [kW] 4.14 5.52 6.9 8.28 9.66 11 13.8 16.56 22
Example
Photovoltaic generation
Electric vehicle
The figure illustrates the behaviour of the Wattpilot with a set start-up power
level of 1.38 kW and a 3‑phase power level of 4.14 kW. If the PV surplus is less
than 1.38 kW, the vehicle is not charged.
If the PV surplus is between 1.38 and 4.14 kW, the Wattpilot regulates the char-
ging power in 0.23 kWincrements.
23
EN
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