What off-peak charging means
Off-peak charging simply means running your EV charger during the hours when electricity is cheapest — usually overnight, or whenever wholesale prices dip. On time-of-use and EV tariffs the off-peak rate can be a fraction of the daytime rate.
Why the gap is so large
Overnight demand is low and there is often surplus wind, so wholesale prices fall. Suppliers package this into dedicated EV tariffs. For example, some UK EV tariffs offer roughly 7–9p/kWh overnight versus a standard rate near 25–27p, and Irish smart EV plans put the night rate under 12c/kWh against a day rate around 29c.
An EV is one of the largest single loads in a home, so charging it in the cheap window rather than at peak makes a big difference to the annual bill.
A simple worked example
Say you add 200 kWh a month to your car. At a 27c/kWh day rate that is about €54. At an 11c/kWh off-peak rate it is about €22 — a saving of roughly €32 a month, or nearly €400 a year, for the same driving.
Actual figures depend on your tariff, car and mileage; the point is that when you charge matters as much as how much you charge.
Making it automatic
The catch is that you have to charge at the right time, every time, without leaving the car short in the morning. FYXO connects to chargers like Tesla, Ohme, Easee, Wallbox and myenergi and schedules each session into the cheapest hours automatically, always meeting your ready-by time and minimum charge.