As a heads up...
According to https://octopus.energy/blog/intelligent-octopus-go-smarter-charging-for-a-greener-grid/ there are changes coming to octopus that will impact those on the tariff and include car charger load in their predate visible ct clamp.
It implies the electricity meter on its own is insufficient to determine what power is going to the car/battery since you may have overnight cheap usage for the house while car consumption is expensive.
My own setup has the ct clamp positioned to exclude car power so should be unaffected.
We’ve split out your car charging and your home use, creating a dynamic 4-rate system. It sounds complicated, but it boils down to four simple rules:
Your home off-peak: Your house always gets the cheap off-peak rate between 23:30 and 05:30. Reliable, consistent, cheap green electrons every day.
Your car allowance: Your car gets up to 6 hours of off-peak charging per day (measured midday to midday). We might schedule this during your home's off-peak window, or at other times of the day when the grid is greenest.
Your freebie (the bonus home rate): If we schedule your car to charge outside of the 23:30–05:30 window, your home also gets the off-peak rate for that half-hour when it’s within your car allowance.
Your standard rate: The default for your home, outside its off-peak window. If your car charges for more than 6 hours (or you decide to Boost charge), the car rate flips back to this rate (even if it happens at 2:00 AM while your house is still getting the off-peak rate).
As a heads up...
According to https://octopus.energy/blog/intelligent-octopus-go-smarter-charging-for-a-greener-grid/ there are changes coming to octopus that will impact those on the tariff and include car charger load in their predate visible ct clamp.
It implies the electricity meter on its own is insufficient to determine what power is going to the car/battery since you may have overnight cheap usage for the house while car consumption is expensive.
My own setup has the ct clamp positioned to exclude car power so should be unaffected.
We’ve split out your car charging and your home use, creating a dynamic 4-rate system. It sounds complicated, but it boils down to four simple rules:
Your home off-peak: Your house always gets the cheap off-peak rate between 23:30 and 05:30. Reliable, consistent, cheap green electrons every day.
Your car allowance: Your car gets up to 6 hours of off-peak charging per day (measured midday to midday). We might schedule this during your home's off-peak window, or at other times of the day when the grid is greenest.
Your freebie (the bonus home rate): If we schedule your car to charge outside of the 23:30–05:30 window, your home also gets the off-peak rate for that half-hour when it’s within your car allowance.
Your standard rate: The default for your home, outside its off-peak window. If your car charges for more than 6 hours (or you decide to Boost charge), the car rate flips back to this rate (even if it happens at 2:00 AM while your house is still getting the off-peak rate).