EV

We’ve recently switched our car to a BEV (Battery Electric Vehicle). Previously we were driving a 2012 Peugeot 508SW 1.6 e-HDi. Our new car is a 2021 Skoda Enyaq iV80, I’ve put together a quick stat comparison of the two cars below.

Obviously my main criteria for the new car was that it was to be electric. Other than that, I needed to be able to fit my work equipemt in the boot, which it just about fit in the old car. The trouble with the current crop of second hand EV’s is that they are either small hatchbacks, or massive SUVs; with the only estates being the MG5 and the Porche Tycan. The Porche was a little out of my price range & I was’t too impressed with the MG5, it felt like a step back (or two) from what I had been driving.

After a lot of research, I settled on the Enyaq. I was impressed by the quality of the interior, the range was impressive for the price and I would easily get my eqipment on board.

Running Stats

Since getting the car at the end of February 2024, I’ve been tracking all charging of the car; summaries of the data are below. I’ll mention some caveats though.

Firstly, the average miles per kWh are based on the electric going in to the car in this dataset, not what the car is reporting. These figures differ, because of charging losses. Basically the AC electric from the charger needs to be converted to DC to be stored in the batteries, with this conversion there are losses. Around 83% makes it into the battery, meaning a loss of around 17%. Personally I’m more interested in how efficient the car is based on how much I’ve paid to charge it, so I’m happy with this reporting method. If I want to know how efficent the car is at using the stored energy, I can always look at the on-board trip counter.

Secondly, my reporting of the CO2 ’emissions’ of the car, whilst not tailpipe emissions are based on the local grid CO2 intensity at the time of charging. This is an average of an average and therefore not 100% accurate. On top of that, when solar charging – especially on days with intermittent sunlight – will end up using small amounts of grid energy. Looking at the Zappi logs, solar charging is usually around 93-97% solar, or 3-7% grid. I personally deem this to be quite insignificant (usually equating to around 1-200Wh), so I report Solar charging as 0g of CO2.

I’m reasonably happy with this, as what I’m comparing it against – the claimed emissions of the Peugeot – were probably optimistic in the first place (Dieselgate anyone?) and dependant on how the engine has been maintained, etc…

So the first table I’m showing here is an overview of the data I’m collecting:

The second table is a comparision of the CO2 emissions between the two cars. The Skoda based on the grid CO2 intensity when charged and the Peugeot based on the claimed figures, covering the same milage as the Skoda.