Does an L2 cost the same to set up for the site owner?
With newer EVs upping their DCFC rates, L2 would be less useful. And just like people go to the 350s instead of the 150s (because they don’t understand their vehicle can’t even go above 150) they will still clog the L3s over the L2s.
There are places I go to with CP L2s and they always available, esp if there are DCFCs nearby.
I think L2s are really only good near movie theaters, restaurants or any longer type of engagement site.
Non Tesla DCFC tend to cost around 2-500K and sometimes more to install for your typical 4-8 post arrangement. Putting up a few high rate L2’s (~1-3K per depending on cable runs) adds relatively little once you consider that.
Any place where you expect people to hang around for a while like wholesale clubs, large grocery, outlet malls, gyms, would be a great place to offer that option.
One thing I’d like to see more of as well is DCFC at service plazas/oasis/safety rest area like what they have in CT, NJ, and CA.
Let’s call that 30-40%, so 60-70% added.
Why not charge from 20% to 80% or 85% instead?
Forget about clogging up a communal resource for a second: why are you wasting your own time? And for no real benefit. You can add the same KWh in a lot less time.
Because he can do that in half the time it takes a Bolt to get from 20-80%.
Adding more charging sessions that are shorter in duration just spreads out the pain, and would require a lot more driving time.
Plus I generally have my personal and/or work iPad with me.
So the only time I’m wasting would have been wasted at home on the same activities… excerpt I’d be sitting at a desk.
But you’re not. You’re adding literally the same 60% whether you go 40-100 or 20-80.
The latter session is shorter in duration (time) but not in electrons.
You really needed the final 1%?
I’m not willing to drain the car down to 5% instead of 25% before recharging, just so a random ID.4 driver who isn’t an early riser doesn’t have to wait 3.5 minutes for me to go the last 1%.
So you’ll make people wait so you’re at 25% instead of 24%?
I don’t make people do anything.
They can choose to wait, or choose not to wait.
I do this all the time at EA stations.
When there’s a line to get into a busy restaurant, are you tromping through the dining room confiscating dessert menus? There are people waiting for a table.
I’ve gone to my nearest EA charging station only twice so far since getting my Ioniq5 a few weeks ago. I’ve only had to wait once for less than 10 minutes. It has 8 charging stations, 7 of which are operational - 3 are 350kw (1 has been out of service for a while, so only 2 are functional) and 5 are 150kw. I’ve seen an Uber driver with a Bolt charge for quite a while, the second time I was there. Maybe they were trying to reach 100% battery level. It doesn’t bother me much. To each their own.
I am planning to install a Level 2 home charger soon, so that I don’t have to rely on free charging. I will still frequent the EA station from time to time.
I’ll make a reservation ahead of time 
but in all seriousness, make your own choices and treat people however you’d like but just don’t complain if you’re waiting in line when people do the same.
Yes, home or nearby L2 charging is the solution to dealing with EA. Fast charging should really only be for road trips. It would be nice if there were more focus on rolling out L2s in neighborhood parking spots.
Doesn’t anyone use Costco gas? On a Saturday it can be a 20 minute wait. Nobody whines or complains that people fill up the tank to the top.
Why is the expectation any different with electric charging?
People who drive EVs are generally more sanctimonious.
I have to drive at least 20 minutes to the closest EA charging station. It is not a big deal, since I kind of enjoy the ride. I usually either sit in my car or go use the bathroom at the mall nearby. 
Let’s level set the experience here.
Say at Costco it takes 5 minutes to get their gas tank to from 10% to 80% full. But to get from 80% to 100% full, it’s going to take another 5 minutes.
So your 20 minute wait will now become 40 minutes.
Or… some people are already at 100%, but they left to go somewhere so you don’t know when they will be back, holding up your line.
I do think an 80% surcharge will really move DCFC along much faster and maybe add some more funding to these charging companies.
Who leaves a gas pump unattended aside from perhaps a small town?
Yes… but that’s the equivalent to what people are doing at DCFC stations. Most cars should get enough charge from 20-40 minutes (depending on your EV) but people are leaving for an hour or more.
So you drop an incentive for folks to move over to a L2 plug once their charge rate drops below .5kWh/min (~30KW rate)
If the DCFC stall is charging them 36-48c/kWh then the L2 bills at 12-16c/kWh it can be an incentive for someone who has the time to wait but needs the top off.