Anyone use a Zappi with Zappi Scheduled charging

[Jomarkh]

I'm not on Octopus (yet) . British Gas 7.9p from 00:00 to 05:00

You don't have to switch to Octopus for a good rate check out energy.

 

[John Down]

You don't have to switch to Octopus for a good rate check out energy.

Cool, thank you.

 

[rjhfandclf]

Yes @mikgle I've done the maths on all OE tariffs and, although a few pence cheaper for just six hours overnight, OIG simply doesn't add up with solar and an Air Source Heat Pump (ASHP) - particularly as my home EV charging is minimal, and we spend much of the warmer months abroad. Even if I charged the EV 50 kWh/night and we didn't go away, it would still need very careful analysis, as much of our power demand is day/evening and winter-orientated, while most high volume solar is exported.

The ASHP takes well over 50% of our annual demand (and all within around six months of the year) - some coming from solar at 15p ('lost' income) and the rest from the grid, or battery charged fom the grid - and spread usefully for charging over eight hours throughout the night and day; but 75% of this is at the cheap 'Cosy' rate of 13p, with around 22.5% at 'day' rate, and only 2.5% at unavoidable 'peak' rate. With OIG, we would only get one lump of overnight only charging for a 9.4kWh battery that would be flat again by mid-morning, so thus subject to day-rate or peak-rate for the rest of the day and evening and for most of our ASHP HW and CH.

 

[DBedford]

I'm not on Octopus (yet) . British Gas 7.9p from 00:00 to 05:00

3.9p/kWh with British Gas if you have their EV tariff, and keep the car plugged in for more than 6hrs.