Fee per time is best because that encourages drivers to take what they need and then make the charger available for someone else, rather than remaining to get that last 20%. The quick ramp down of charging rate is why EVoasis' 25 kW charger is almost as quick to 80% as Blink's 50 kW chargers.TomT wrote:I know it is a concept unpopular with many - and frankly I am in that camp - but I don't see QC being sustainable for much less... I would like to see it based on time or Kwh though, rather than straight time... Perhaps a minimum charge plus actual usage time or Kwh..
Fee per kWh would somewhat encourage people to camp on chargers when they don't really need the extra charge. Fee per session strongly encourages people to camp on chargers. (I only need 40% but it's all-you-can-eat so I'm going for 90%.)
But if you thought nothing could be worse than Blink's fee per session, here comes evGo's fee per month. One payment for unlimited charging all month. To get your money's worth, charge if you need it or if you might need it. Heck, skip charging at home to save $1 and charge instead at evGo - it's already paid for.
PS, I just looked at a little trip this weekend with Blink QC. Based on my SOC when I arrive and going only to 80% I'd end up paying over 10X as much per kWh as I do at home. But my total cost for the trip, enabled by the QC, would be less than half as much as driving the gas car. As usual.