Guest Blogger #3 (BMW i3)

The range, and more precisley the limitation of the range, is often cited as a reason not to buy into the EV dream. More often than not, you will hear about how EVs are only suitable for short trips but this month's guest blogger has a longer trip story or two to tell. Guillaume Séguin is the editor for www.irishevowners.ie ; of French origin he has been living in Ireland for over a decade and has been advocating EV adoption through the Irish EV owners Association. Contact: editor@irishevowners.ie - Instagram & Twitter : Lutecia44

For many, EVs are just good for the city, or maybe further if your range is enough to cover your daily commute plus some errands. But not made for long distance trips. They are right and wrong at the same time.

I'm based in Cork and bought my first EV exactly 5 years ago. A first generation used Leaf found in the UK. That's what my budget allowed.  So my first real EV experience (bar some short test drives) was also a long distance trip. I had never driven a Leaf before and here I am in Nissan Oxford picking up my new car when the salesman tells me, realizing I'm going to drive to Ireland the next day : "You're brave". I'm sure that in 2019 dealers believe more in their own EVs ! :)

So the next day I drive from Milton Keynes (where I was staying for a few days) all the way to Fishguard, 400km west. That first trip went actually quite smoothly, all chargers were available and operational (Ecotricity did a great job with their Electric Highway network back then), with a charge every 80km or so (winter range of the Leaf 1 isn't too impressive)... The key to that smooth trip was serious planning, with plan Bs, and plenty of extra time (12 hours total!), just in case something went wrong (and a flexible ferry ticket!). In hindsight, I can say that I've actually had more stressful trips later, just because I didn't plan correctly!

The Irish leg (from Rosslare to Cork) was actually quite interesting, as the existing network was not completed back then, and there were no fast chargers in Waterford. The range was too limited to drive from Rosslare to Dungarvan, so I actually had to drive to Kilkenny before driving down to Cahir and Cork. A 6 hour mini-adventure for a 200km distance. After a few months, the range anxiety faded, and I felt more comfortable with the capabilities of my car (and got myself the Leafspy app, a great investment for any Leaf driver going for long distances, allowing to have a more precise battery gauge).

I'm telling you that story to show that driving a mainstream EV could be quite a challenge, just a few years ago. Thankfully things changed since.

In 2015 I did my first trip to France. I usually drive to Nantes to see my family for Christmas but the fast charging network was just not there that year so for the first time I had to wait for the summer crossing to Roscoff which was much easier to manage (and without need for heating!) thanks to a better charging network on that route.

The following year (2016) I upgraded my Leaf to a 30kWh model. What a great feeling to see the range expanding! It meant, thanks to an ever improving network, that I could drive to France in winter and enjoy my first electric Christmas trip, all the way to Paris, even if the route to home was not straight forward and added a few hours to my trip.

In 2017 I decided to go to Scotland (great charging network!) and the north of England : it was so easy! And of course another French Christmas, this time, I could drive the 350km home just like in an ICE, bar the 3 quick charges (but without detour) and more moderate speeds. Very acceptable.

In Autumn 2018 I decided to go for a 33kWh BMW i3. The range is a bit better. Far from what Tesla or newer models can do now but a fair progress over the Leaf. Next week I will drive from Cork to Wexford. But won't go through Kilkenny, and it won't take me 6 hours. I'll actually do the 180km trip without recharging on the way. At the same pace as the other cars, with the added comfort, toll discount, and cheap "fuel".

My next EV will have an even longer range. Maybe it'll be a Tesla Model 3, a Kia e-Niro, or another of these newer EVs that have battery packs of over 60 kWh. I'll go from Cork to Dublin in one go, with some electricity to spare. The range anxiety will be gone, but then I will probably suffer from bladder anxiety.

Electric vehicle batteries just don't last, do they?

There is quite a famous (infamous?) episode of Top Gear (Series 17, Episode 6) where Mssrs. Clarkson and May take a test drive in a Nissan LEAF and a Peugeot iON. Apart from sensationalising range limitations (which I believe was a stunt involving deliberately running down the battery levels prior to starting to film), the episode makes certain claims about how long batteries will last and how much they cost to replace.

One claim is that you can ruin the battery pack in 3 years if you fast charge all the time, and a related claim is that if you slow-charge then the battery pack will last "maximum 10 years, possibly 5" with a replacement cost of £7,000.

At first glance this seems terrible. Why would you buy a car where you had to spend £7,000 every 5/6 years? It would be the equivalent of buying an ICE car in the knowledge that you had to replace the engine every 5/6 years (or 3 years if you go hard on it). You simply wouldn't do that.

However, the reality has been shown to be very different to the claims made in that episode.

It is generally accepted that Nissan LEAF batteries degrade at about 3 to 4% per year, with degradation more linked to age than mileage. There are variables that can affect this, but that's the accepted degradation rate. So, I decided to put my own car to the test.

My car turns 4 years old this month (January 2019), so I'd expect somewhere between 12 to 16% battery degradation in that time. To test this, I connect an OBD2 dongle into the computer in my car, and using an app (called LeafSpy Pro) on my phone, I am able to view a lot of data about the car that is normally hidden.

The image below shows the battery cell report:

The blanked out part is the VIN, and the value highlighted in red is the State Of Health (SOH) of the battery pack. The "odo" reading is the mileage of the car, and the QC refers to number of Quick Charges, while L1/L2 refers to the number of slow charges.

As you can see, after 4 years and 72,242 kilometers, the battery pack still has 87.74% of its original capacity. This is at the lower end of what would be considered normal degradation, so no complaints there. I can easily get 100km at worst from that capacity, so all things being equal in another 4 years the car will have about 75% battery capacity and a range of about 90km at worst. 

The reality is that I will not have to replace the battery any time soon, if ever. This is a long way from the claims made by Clarkson (remember: as little as 3 years if you fast charge, 5 if you slow charge before requiring a replacement costing £7,000). It just goes to prove that some anti- EV claims made in mainstream media really need to be taken with a sack of salt.

For anyone in the Galway are who has a Nissan LEAF, I'd be happy to meet up with you and test the battery health in your car for you using the OBD2 dongle that I have. Just comment below, or drop me a line.

Live Lab #2 (December 2018)

As you can see from the image above, the car averaged 15.9kWh/100km in December (up slightly from the 15.6 in November). This is pretty good for the time of year, and is reasonably consistent over the two-months of this Project so far. The cost of driving is still around €2 per 100km.

The total cost of €21.09 shown above is inaccurate, in that it is the cost calculated if all charging was done at home at the domestic rate. However, as mentioned in a previous post, the charge point at my house was replaced during December. For about 2 weeks of this month I was using public chargers, so I estimate that the actual out-of-pocket cost for driving just over 1,000km was about €10. 

*A note on the stated CO2 Savings shown above:

This figure is calculated by Nissan, not by me. Please refer to the note on this page for more information about this.