SUV PHEV’s typically achieve 2-3 Miles/kWh assuming 24p standard tariff your looking at 10p/mile If using an EV tariff such as Octopus Go where offpeak is 8.5p, then cost is 3.5p/mile If using in a hybrid mode, it is highly dependent on the driving you are are doing. typically PHEV’s tend to start engines around 35MPH Assuming driving is mostly above that 35MPH, MPG can typically be around 40-45. Interestingly, I experience minimal battery drain doing these sort of stretch’s, so ill ignore that cost. assuming petrol @ 145p/litre and 45 MPG, expect around 14p/mile As you can see, unless you are using an EV tariff, there is very little point to a PHEV in my experience.
I’m predominantly driving electric throughout the week acheiving 34 miles easily. To acheive those 34 miles is working out at 7.9p amile on a standard electrictiy tariff, which is less than half what it was previously costing with my Tucson ICE. Based on an “average” of all the EV tariffs, it would work out an average of 2.8p a mile depending on the tariff chosen. However, I’m undecided whether to choose an EV tariff because, (a) my smart meter is dumb and I’d probably like it to stay like that (b) EV tariffs tend to increase the peak rate to help offset the off peak rate and as an electrician, I do not think its wise/safe to run the washing machine/tumble dryer when a sleep. My calculations can be seen in the facilifted Tuscon thread. I don’t know what PHEV you drive but, aslong as I keep eco meter just below the halfway mark in the power section mine will happily accelerate in electric. if I floor it the engine will kick in and switch to hybrid driving. Coming home from taking my daughter to school I turn onto a 60mph straight stretch of road, I can easily accelerate up to 65mph following the traffic, once at that speed the eco meter guage thing settles down at around 75% mark in the eco range and it will happily stay in electric, as long as there is enough battery power. A recent 400 mile round trip visiting my parents, I acheived 50.4mpg. I started with a fully battery and didn’t recharge untill I got back home on the Sunday afternoon. Another user on the forum (johntheleg) is getting better mpg than me on a run.
50 mpg seems about right on a decent run, in local runs around the New Forest with its 40 mph advisory speed restriction on holiday we were see nearly 60 mpg in hybrid only mode, however this is the exception, 50 mph seems about spot on for a 2 tonne SUV.
We do not run the washing machine or tumble dryer at night or when we are out for the day even when it is negative rate.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.