Visited yesterday without charging.
The chargers are in the public parking with a parking meter. Parking is free between 19h and 07h, but you are not allowed to park between 22h and 05h, which is really a bummer for charging station users...
30min free parking, then 1CHF/h and 5CHF/day. The electricity price is printed on a sticker on the charger, 25ct/kWh, what a deal! Even accounting for parking, 5CHF+12.50CHF for 50kW would only be 35ct/kWh average!