I highly recommend going to the PlugShare web site, and finding out what charging networks are available around your home/work sites as well as along any routes you plan before (longer distance) traveling. Print out a picture to keep in your glovebox during the trip.
In order to find DC Fast Charge sites, try this :
1- go to https://www.plugshare.com/
, set the map to your location, zoom out to maybe 50-90 miles around you (for your trip to Ucluelet, have the map zoomed out to show Seattle and Ucluelet and the route between)
2- in the upper left of the map, click on the 'options' icon (3 horizontal bars next to "Search for a Charging Location")
3 - unset/unselect all vendors (including "other") and set only
CCS/SAE under "plugs" (unselect the other plug types)
4 - one by one, set a single network (say, ChargePoint). Look for orange 'teardrops' (indicating locations with DCFC) to pop up - if some do, write the name of that network down. Now, unselect that network and select the next one. Do this until you have done all the networks. You now know which networks have DCFCs near the area that interests you (well, the ones that are listed in PlugShare, at any rate.)
So you now know which companies (networks) have DCFC stations in your area (or along your route) - those are the networks that you should consider joining. You can zoom the map in closer (10 mi?) to work, home, family homes you might visit, hotels you are staying at, etc. and select just the "J-1772" (or "EV plug") plug to find level-2 (240V) charging locations nearby (those teardrops are green). The "Other" network (generally, those not networked) can be very useful close to home, work, family, friends, etc. where you spend several hours, as sometimes those are FREE and you can find locations near where you often are where you can get free juice. I used to "carpool" with a guy who would drop his car off at a free charger on his way work, and go pick it up at lunchtime. (I put "carpool" in quotes because he'd drive to the charging location and plug in his car, miles from work, and I'd pick him up there and bring him to work.)
That compiles the list of "useful networks" (for you
- it really depends on where you live). Many companies allow you to sign up for free. Some will allow you to sign up for free, but charge you for a card with RFID chip ($5?). Some networks (many, actually) allow you to start a session via their smartphone app - but you better hope you have cell reception when you get there! I have cards for about 5-6 networks - I've only ever used one of them, but the others are in my glovebox for emergency use.