Budman
Well-Known Member
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I'm a recently retired engineer who had a data analysis itch to scratch. Bad weather today in Minnesota with an early season snowfall and cold windy conditions so took some time to dig into the data on plugshare.com. I took a sampling of up to 50 charging locations across the country for a few providers to get a statistical sample of the user reports. The data is shown in a few charts below.
A few notes:
I did not include Rivian because a fair number of people gave a bad report because they tried to use non-Rivian at that location.
If a location got bad scores because of ICE'ing or lack of access due to construction I did not use that location.
For Tesla, I used only the locations that currently have the MagicDock for CCS use
If a location got a lot of bad scores because of CHAdeMO problems I did not use that location.
If a location is very new and not officially open I did not use it.
The "Zef" network is a small one based in MN and surrounding states. I selfishly included that network because, well, I live in MN...
Not all networks were looked at. My itch wasn't that big
Chart 1). Simple average of the current plugshare scores ranked from best provider to worst.
Chart 2). A distribution plot showing each individual location's score.
About Charts 1 and 2.
The Flo network was the best but those chargers were mostly 50 kW. ChargePoint did very well but most of those were 62.5 kW. The Tesla average was dragged down mostly by Chevy Bolt owners, the Bolt's seem to be having issues using the MagicDock. A few other brands reported MagicDock issues too, including Rivian, but for the most parts the MagicDocks seem to be working OK. EA (Electrify America) got a high average score because they generally have many stations at a location and even if some stations are offline people could still charge successfully.
At the other end of the spectrum Petro Canada and EVgo did really, really poorly. Even EVgo's 50kW chargers did poorly.
Rivian would have scored very highly, probably the highest, but the non-Rivian charging attempts artificially gave those locations a lower ranking.
Chart 3 shows the advertised max power of each location.
Notes about Chart 3.
Flo and Chargepoint have slow chargers but they just work. EA has fast chargers that very often are derated making them more or less the same speed as ChargePoint. Zef has slow chargers that all too often don't work, which sucks for me....
Chart 4: Based on user reports of derating I calculated the % of locations that had at least one derated charger.
Notes on Chart 4: Tesla and Rivian were very often at full power. Flo and ChargPoint just work, they are not powerful but they are reliable and predicable. EA very very often had at least one station derated but they still worked. Petro-Canada? Wow, ugh.......
In conclusion; Rivian RAN network is rocking it right now. Tesla MagicDock is off to a good start but do a practice run before a roadtrip where you need to rely on it. Electrify America is still probably the next go-to network as you will likely find functional, all be it, derated chargers. ChargePoint and Flo are solid providers. I didn't mention much about Shell, they are OK-ish but do your plugshare homework before you hit them. Petro-Canda and EVgo are providers of last resort.
Hope some people find this useful. Confirms the conventional wisdom but nice to have numbers to back it up. Maybe a better way to shame the providers into doing a better job.
A few notes:
I did not include Rivian because a fair number of people gave a bad report because they tried to use non-Rivian at that location.
If a location got bad scores because of ICE'ing or lack of access due to construction I did not use that location.
For Tesla, I used only the locations that currently have the MagicDock for CCS use
If a location got a lot of bad scores because of CHAdeMO problems I did not use that location.
If a location is very new and not officially open I did not use it.
The "Zef" network is a small one based in MN and surrounding states. I selfishly included that network because, well, I live in MN...
Not all networks were looked at. My itch wasn't that big
Chart 1). Simple average of the current plugshare scores ranked from best provider to worst.
Chart 2). A distribution plot showing each individual location's score.
About Charts 1 and 2.
The Flo network was the best but those chargers were mostly 50 kW. ChargePoint did very well but most of those were 62.5 kW. The Tesla average was dragged down mostly by Chevy Bolt owners, the Bolt's seem to be having issues using the MagicDock. A few other brands reported MagicDock issues too, including Rivian, but for the most parts the MagicDocks seem to be working OK. EA (Electrify America) got a high average score because they generally have many stations at a location and even if some stations are offline people could still charge successfully.
At the other end of the spectrum Petro Canada and EVgo did really, really poorly. Even EVgo's 50kW chargers did poorly.
Rivian would have scored very highly, probably the highest, but the non-Rivian charging attempts artificially gave those locations a lower ranking.
Chart 3 shows the advertised max power of each location.
Notes about Chart 3.
Flo and Chargepoint have slow chargers but they just work. EA has fast chargers that very often are derated making them more or less the same speed as ChargePoint. Zef has slow chargers that all too often don't work, which sucks for me....
Chart 4: Based on user reports of derating I calculated the % of locations that had at least one derated charger.
Notes on Chart 4: Tesla and Rivian were very often at full power. Flo and ChargPoint just work, they are not powerful but they are reliable and predicable. EA very very often had at least one station derated but they still worked. Petro-Canada? Wow, ugh.......
In conclusion; Rivian RAN network is rocking it right now. Tesla MagicDock is off to a good start but do a practice run before a roadtrip where you need to rely on it. Electrify America is still probably the next go-to network as you will likely find functional, all be it, derated chargers. ChargePoint and Flo are solid providers. I didn't mention much about Shell, they are OK-ish but do your plugshare homework before you hit them. Petro-Canda and EVgo are providers of last resort.
Hope some people find this useful. Confirms the conventional wisdom but nice to have numbers to back it up. Maybe a better way to shame the providers into doing a better job.
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