Chevy Bolt EV Forum banner
  • Hey Guest, welcome to ChevyBolt.org. We encourage you to register to engage in conversations about your Bolt.
1 - 5 of 5 Posts

· Registered
Joined
·
72 Posts
Discussion Starter · #1 · (Edited)
As we've now just passed the 2 year anniversary of Bolt ownership in Middle Tennessee (with one of the first Bolts here ever), I'm repeating the trip from our home in Nashville to the Pennyroyal Scuba Center (a training quarry) in Hopkinsville, KY. My daughter and I did the trip last year, not driving like a madman but not hypermiling either. Last year we took the scuba gear for 3 people but only two people in the car since my wife wasn't feeling well. This year we're taking all three of us which is obviously more weight on the trip.

I could take the ICE SUV we have (Caddy SRX) but the Bolt holds all the gear we need and is smaller and more maneuverable in the tight loading/unloading spaces near the quarry.

There are few charging stations on this route (I-24) but the one that is our backstop is one run by the city of Nashville at an extreme northside charging station next to a fire house. It's 28 miles from my front door which makes it a good safety spot in case I badly miscalculate the trip.

But last year we drove at 75 MPH with air conditioning in about the same weather (average mid 80s). We used the fire house charging station to top off before the main trip and I figured that if I didn't do it, we'd still have 28 calculated miles left when we reached home, or about a pace of 3.5 mi/kwH.

I took the fully loaded car and family (running the AC in 90 degree heat) out today before tomorrow's trip and discovered that 70 MPH got me an average of 4 mi/kwH while 75 dropped that down to 3.5. So we'll keep the speed lower this trip so we won't have to do the fire house stop on the way home.

Should be a fun day.
 

· Registered
Joined
·
1,326 Posts
I took the fully loaded car and family (running the AC in 90 degree heat) out today before tomorrow's trip and discovered that 70 MPH got me an average of 4 mi/kwH while 75 dropped that down to 3.5. So we'll keep the speed lower this trip so we won't have to do the fire house stop on the way home.
Thanks for the numbers. Let us know how it goes. I'm interested in taking a road trip and am wondering what mi/kWh I'll get at "freeway speed" with the A/C on.
 

· Registered
Joined
·
72 Posts
Discussion Starter · #3 · (Edited)
Final numbers for the 2017 Bolt from Nashville to Hopkinsville, KY (round trip):

Temperature: Start, 76 degrees F. Return, 90 degrees F..
Car guesstimate of range at start: 236
Total Round Trip Distance: 172.3 miles
Car guesstimate of range left at mid-way point: 132 miles
Total round trip energy consumption: 46 kwh
Average consumption: 3.75 mi/kwh
Cruise control speed: 70 MPH
Drive mode: L
Air conditioning: ON (72 degrees)
Total weight (passengers + cargo): approx 900 lbs.
Car guesstimate of range left at end: 40 miles
Recharge power: 51.27 kwh (via information from my Juicebox 40)
Recharge time: 7:17

I'm not sure why the amount of recharge doesn't more closely match what the car said it consumed. Maybe someone has a theory on that. Otherwise everything pretty much matches my estimates. The car guesstimate on range at the half-way point was about 104 miles, about 18 miles more than I actually travelled but trip is mostly uphill just outside of Nashville.
 

· Registered
Joined
·
2,105 Posts
Final numbers for the 2017 Bolt from Nashville to Hopkinsville, KY (round trip):

Temperature: Start, 76 degrees F. Return, 90 degrees F..
Car guesstimate of range at start: 236
Total Round Trip Distance: 172.3 miles
Car guesstimate of range left at mid-way point: 132 miles
Total round trip energy consumption: 46 kwh
Average consumption: 3.75 mi/kwh
Cruise control speed: 70 MPH
Drive mode: L
Air conditioning: ON (72 degrees)
Total weight (passengers + cargo): approx 900 lbs.
Car guesstimate of range left at end: 40 miles
Recharge power: 51.27 kwh (via information from my Juicebox 40)
Recharge time: 7:17

I'm not sure why the amount of recharge doesn't more closely match what the car said it consumed. Maybe someone has a theory on that. Otherwise everything pretty much matches my estimates. The car guesstimate on range at the half-way point was about 104 miles, about 18 miles more than I actually travelled but trip is mostly uphill just outside of Nashville.
Your charger efficiency was 89.72%, most of the "missing" 5.27 kWh was consumed by battery cooling during the charging session.

Keith
 
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top