An apartment dweller’s charging plan

Like many new EV owners, I began very concerned about charging. Where I used to have a car with a 300 mile range and 1 minute zero to full charging, I now own a car with a 80’ish mile range and a variable charging time.

I rent an apartment in southern California, which prohibits me from realizing the long term benefits of running electrical and installing equipment. Charging on purely level one sort of puts me at odds with the recommendations of EV manufacturers who tout level one (trickle) charging as an interim or emergency charger until you can get a level two installed.

What I found however is in 98% or so situations I had no problem with using JUST a trickle charger. The statistic that frightens most potential/current EV owners in the U.S. is the 20 odd hours it takes to get from empty to full. “A full DAY to charge!?” they say. The reality for me however was that during my 38 mile round trip commute I tend to expend somewhere between 42 and 50% of my charge (Please note that this effectively could be done twice without charging given a new and charged battery). Using that higher 50% number, it would take a full 10 hours to fill the batteries. Seeing as how I sleep for eight hours, and like to spend an hour at home (at least) prior to sleeping that at (general) worst leaves me losing about 5% battery at night using the slowest charging method. Add to this my morning routine which takes up about an hour this puts me back to 100% charge. The other 2% of situations have me doing things like coming home to then want to run out again and drive for 50 miles, which I’m prevented from doing with JUST my home trickle charge setup. For situations like this I’m lucky enough to find myself working at a building who has level two chargers on site. I simply charge during the last two hours of my workday, and I’m off on around 100% charge. I eventually plan to get one of these miracles when I own my own house so I can make 1.5% of the remaining 2% of trips I’d like to make (the 0.5% being road trips), but the trickle charge does me fine in the interim.

The next question I had was about power costs. Power bills do tend to vary seasonally, but I do have are mine from Aug-Sept (no EV) and Oct-Nov (EV), both months where we did not run a/c or heat. In the earlier non-ev bill, we used 221kWh which totaled $33.86. In the EV owning month we used 455 kWh of energy totaling $92.63, an increase of about $58. Our usage about doubled, and our bill about tripled due to the higher rate tier the extra use put us into.

There are some options our local electricity provider offers, namely to either install a separate meter billed at a separate rate, or switch to time of use billing. Since I have a level 2 blink unit at work that charges me $1 hour, I’ve chosen to just charge at work daily. The way I figure it, I get about 6 kWh for that dollar, putting it at about 16cents a kWh. Since my low tier electric rate is 15c, my second tier is 17c, and my third is 37c I believe this to be the lowest rate I can get. In addition to cost, it also affords me an interesting bit of range. Where I used to get home with  -45% charge, I now arrive home with -22.5% charge, which extends where I can go after work. While I don’t need to generally count on extra charging overnight, I can now have a higher starting value need be (if I go for a longer drive after work). Plugging in at home was more convenient, but I like this setup better for now.

So there you have it, an apartment dwellers charging plan.

Advertisements

The Decision To Buy

I was in the market for a used pickup truck. I reasoned that it would be cheap, practical, and give enough headroom for my tall guy frame. So how exactly did I go from a used truck to a new electric vehicle?

Miss EVLife recommended I look into a hybrid, something like a Honda Prius. She reasoned it would save money in the long run (we’re frugal people). I was worried they would be small people cars, and that the high cost may not be offset during the lifespan of the vehicle. I heard an interesting statistic, most fully electric vehicles (EVs) are sold at a loss. Some reports have that number for some car manufacturers as high as $10,000. I then heard another interesting statistic, between California and the federal government, about $10,000 worth of tax incentives are available when buying an EV new. That really got me thinking.

EVs come with questions, some end up being limitations or problems, and some end up as unexpected benefits. The following explanations are mostly given for my car, a 2013 Leaf with QC & 6.6kWh charger.

  • Range: It’s a big factor. I quickly found that today’s EV ranges are advertized somewhere between 75 (Leaf & Equivalents) and 300 miles (Tesla). Is this entirely genuine? Well that depends on a lot of factors, which I should preface also apply to the range “single tank range” of regular old internal combustion engine (ICE) vehicles as well. Speed, elevation change, and accessory use (blasting A/C, etc.) being the biggest ones. Road trips are possible, but I wouldn’t do longer trips up the coast in my Leaf. 80 miles, sit at a gas station for 20 minutes (if QC is available, this is more limited) or 3 hours (Level 2). Sure you can make this scheme work, but I’d prefer to road trip in a car with a gas tank (or maybe a Tesla, ah wouldn’t that be nice?). Here is the range chart user TonyWilliams posted for the Leaf
  • Charging (ICE equivalent): So how long does it take to charge an EV? This is also a more complicated answer than it seems like. The reason for this is partly because, as it turns out, We’re used to filling out gas tanks when they’re near empty, it’s how we’ve operated ever since getting a learners permit. I’ll give those numbers, and we’ll go from there. One thing to note is that with this car the level1 and level2 chargers are actually onboard, so the object we’d normally want to call a “charger” is actually an EVSE (Electric Vehicle Supply Equipment). Now the 2013 QC equpped leaf has many ways to charge. The vehicle comes with a level 1 EVSE, which is intended to use as a “backup”. It charges the vehicle on a normal household outlet, 0%-100%, in about 21 hours. A true, taking full advantage of the 6.6kWh charger, EVSE will charge the car 0%-100% in about four hours. There are also level 3 quick chargers (QC) that will charge from 0%-80% in about 20-30 minutes. Why am I giving you a statistic for 80% here where I gave the others for 100% you may ask. The reason behind this is that QCs need to stop giving you their insane charge rate before they hit the upper limits of the battery.
  • Charging (EV thinking): My commute is 40 miles round trip. I wake up with an 80% charged EV (it’s set that way to prolong battery life), I drive to work and am around 54%, then come home ending around 32%. I’ll do some chores, and getting to 10% isn’t likely. I usually plug in when I get home, and when I need to use my Leaf it’s got enough charge for me to do so. In my three weeks of ownership I’ve never needed the car but been unable to use it because of its battery life. If I was doing true 30amp 6.6kWh charging my post commute back to 80% would likely take about two hours.

Cost: I’ll admit I’d never really known the cost of filling up my gas tank throughout the years. I’ve always had an inelastic need/want for gasoline. If I needed to get to my job, I filled up. If I wanted to go on a road trip, I went. Here’s the thing about buying a vehicle though, it’s not going to magically change fuel efficiency in the coming years. So if you’re the frugal type car buying is a great time to analyze. My analysis was as follows, for ownership (not leasing).

  1. Fuel: Consider driving your vehicle 125,000 miles in its lifetime. That’s about that my replaced vehicle got. Consider static gasoline and electricity costs (for the moment) of my rates, which are about $4/gal gasoline, and 10c per kWh of electricity. For the sake of comparison and simplicity I’ll be discussing a 25mpg car, a 50mpg car, and an EV that uses (charging loss + battery) 34 kWh per 100 miles. Over 125,000 miles, a 25mpg car needs 5000 gallons of gasoline, a 50mpg car needs 2500 gallons of gasoline, and an EV needs 42,500 kWh of electricity. The cost for the 25mpg is $20,000 in gasoline, the cost for the 50mpg car is $10,000 in gasoline, and the cost of the EV is $4,250. I’m personally coming from a 25mpg type car, saving about $15,750 over the lifetime of the car if I’d have replaced it with something similar.
  2. Maintenance: After changing oil, oil filters, transmission fluid, transmission filters, brake pads, a fuel pump, a valve cover, various engine gaskets, and even an engine mount, I ran out of steam fixing my last car. There are pages and pages of maintenance guidelines, which ran through my mind while pleasantly looking under the hood of EVs. It’s a bit startling. EVs need much less space under the hood than their internal combustion counterparts. They also require much less maintenance. For the Leaf, you rotate your tires, occasionally replace brake fluid, inspect various things, and change the cabin air filter. I may be leaving something off, but that’s the gist of it.
  3. Insurance: Well, it is a new car. Long gone are the days when I didn’t even care to put comprehensive on my old (KBB $1200) car. That said they really aren’t bad, you just have to shop around. Repairs can be oddly expensive for this new model car, so you’ll want some coverage. I’ve heard of very expensive headlight repairs, things like that.
  4. Incentives: For my state (CA) and income level, I am receiving $10,000 back in the form of rebates. To say $10,000 is off the purchase price IS disingenuous. The issue is that you’re still paying the sales tax on that initial $10,000 (and the opportunity cost of that money, from the time of sale to the time it’s back in your hands). The breakdown of this is that the CA Clean Vehicle Rebate Project gives you $2,500 back about two months after purchase & application date. The federal government gives you UP TO $7,500 back at tax time after purchasing an EV. The statement of “up to” is because you need to have $7500 of federal tax liability to get this much off your taxes. The other “up to” caveat is based on which car you purchase because they give out money based on battery size. Full EVs I believe always get the full rebate, while plugin hybrids get considerably less.
  5. Fixed Upfront Costs vs. Future variable Costs: Gas is variable, and so is electricity. Gasoline does seem to be much more so however.

Non Cost Factors:

  • Smog check? Shmrog check! No need.
  • HOV Lanes have no magic formula for monetizing  HOV lane usage, but in California that’s certainly a perk.
  • SO QUIET. With my old vehicle I heard a lot more noise, be it engine noise, road noise, it all just added up. When you get into an EV with the car windows down and begin to drive you just get a zen like quiet. At highway speeds it’s more of the same + road noise.
  • They are also fun to drive, or slow to drive, depending on how you want to drive and the range you need. The leaf has about 200lb torque off the line, and the Chevy Spark EV has about 400. In real terms they’re just plain fun if you feel like stomping on the peddle, and easily keep up with highway traffic. The salespeople will turn off the ECO mode and tell you to floor it. While this is fun, it’s not terrible indicative of normal EV driving habits. While you wouldn’t have noticed driving inefficiently much in a gasoline car, you will in an EV. This isn’t due to a drastic change in physics, but rather a smaller “tank” making small changes impact your day more. Most EV drivers drive in the slower lanes, maintain speeds using “one pedal driving”, and generally try not to go pedal to the metal. That said I love the “punch” of my EV, even if it’s not a daily feature I use.
  • They are very space efficient. Without an internal combustion engine EVs are free to return that extra space to the car designers. In some cases choices were made to shorten the overall length of the car to improve “parkability” in more urban areas. In other cases you get extra passenger space and cargo room for the car length.

All in all I found an EV to be the right decision for me, after some serious soul searching.