Having found the ShorePower, truck electrical stations midway between Huntsville AL and Nashville TN, I decided to do an all electric, round trip to measure times, distances, and costs.
Huntsville To Nashville And Back
- Arrive Tennessean Truck Stop - 6:37 to 7:39, started with 70 miles EV indicated at 100% SOC. Tripmeter reports 1:02 hr, 55 mi, average speed 54.0 mph. Connected to ShorePower getting 212VAC @30A, 6.36 kW but though power was on, took about two minutes to contact activation service for 2 hour charge, $3. Had breakfast and used excellent WiFi to plan Nashville destination, Green Hill YMCA, in Nashville. Found a data plate: Model TSE-4, Part: SP-0585-R02, 120/240 VAC, 102 Am NEMA 3Rm Wire Size: 4awg to 3/0, Intertek.
- Arrive Green Hills YMCA EVgo - 9:43 to 10:48, left with 81%, 62 mi indicated. Arrived 13.5% with 11 mi indicated. Total distance 115 mi, 2:08 hr, 55.1 mph, 4.3 mi/kWh. Connected to EVgo which reported: 45 min and 8 seconds, 17.07 kWh, cost $15.75 at 11:36. I returned to charging station at 12:10 AM not realizing the charging session had ended. The e-mail notification was OK but an iPhone SMS text would have been more useful. Had a Lox cream cheese, toasted bagel for lunch.
- Arrive Tennessean Truck Stop - 11:58 to 13:04, left with 96.5%, 69 mi indicated. 1:05 h duration, 60 mi, 3.9 mi/kWh, 56.8 mph. Arrived 12.5%, 9 mi indicated. Connected to ShorePower which was still hot without calling the enable service. Had a bowl of soup and set destination for the HSV fast DC charger. Left with 71% and 59 mi indicated to map distance of 49 mi.
- Arrive HSV Fast DC charger - 14:55 to 15:57, ICE started 30 yards from charger, 6% and 6 mi indicated. Started charger and paid $0.25 parking meter fee.
- Arrived home 17:14.
- The phantom charge is misleading. The last 91-100% charge does not have the same kWh of energy per percent as the lower percentages. This makes sense as the current falls off above 88% so it makes sense we are not storing the same kWh as before. So even though I left with an indicated 10 mile pad, I arrived at the HSV Fast DC charger at the threshold that just started the ICE. I stopped it in about ~10 seconds as I parked.
- It appears ShorePower activation is 'honor system' at the Tennessean Truck Stop. I had to turn on the NEMA 14-50 circuit breaker but it was never turned off by their activation service.
- Every hour of driving is ~2 hours of L2 charging at 208-210 VAC at 30 A. In contrast, a fast DC charger takes about 45 minutes. However, both suffer from a higher indicated charge in the 91-100% SOC level that does not have the same kWh energy level as the 81-90%. What this means is a detour to a fast DC charger needs to be less than an hour or you might as well use a full-power, L2 charger.
- EV costs were $3, $15.75, and $0.25, for a total of $19.00. Had I driven on gas, it would have cost ~$12 and saved nearly 5 hours of charging. The total trip time was ~11 hours for both driving and charging.