LeftieBiker
Posts: 6793
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Wed Mar 15, 2017 4:46 pm

I'm not sure.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

jjeff
Posts: 1387
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Wed Mar 15, 2017 5:07 pm

LeftieBiker wrote:I'm not sure.

Yes for sure, I just looked it up on Chevy's website.
To get heated rear seats outboard you must get the Premiere(and therefor leather seats)
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

GRA
Posts: 7241
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Wed Mar 15, 2017 6:48 pm

jjeff wrote:
LeftieBiker wrote:I'm not sure.

Yes for sure, I just looked it up on Chevy's website.
To get heated rear seats outboard you must get the Premiere(and therefor leather seats)

This sort of bundling always pisses me off, although I realize that margins are so low on compact and smaller cars in the U.S. that it's the only way for the automakers to hope to turn a profit on them. I''m a devotee of cloth seats, as I normally am in shorts and in hot weather, often shirtless while driving, and leather or vinyl seats suck on bare skin when it's either hot or cold. I've never understood the attraction of leather seats, beyond the image thing ("soft Corinthian Leather"). Vinyl/leatherette I can see, if you've got young children and allow them to eat/drink in the car.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

GRA
Posts: 7241
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Wed Mar 15, 2017 6:49 pm

Boomer23 wrote:So per GRA's suggestion, here is my EV wish list from my blog from my post two years ago, Does the Bolt EV fill many of my criteria from back then?

First a caveat. The Bolt EV that we bought is my wife's car. It replaces her ten year-old Prius that was starting to be unreliable. So the Bolt does not need to meet all of MY criteria. It just needs to meet hers. Which it does. Completely, and exceeds them in the many safety and convenience features on the Premier model with the Driver Confidence Package II that we chose.

Here is my list from 2015: <snip>
Many thanks.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

User avatar
TonyWilliams
Posts: 10022
Joined: Sat Feb 19, 2011 1:48 am
Location: San Diego
Contact: Website

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 12:20 pm

GRA wrote:... unlike the Bolt owner in the GCR article, which is why I wanted to get your times as well as hers. You weren't going to make all the beginner mistakes she did.


To cover the 400 miles while using 125 amp "50kW" charge stations at 40kW average rate (charging the Bolt EV battery ONLY between 0%-65% SOC only) every 75-125 miles requires this much time:

50mph = 8.0 driving + 1.4 charging = 9.4 hours
55mph = 7.3 driving + 1.6 charging = 8.9 hours
60mph = 6.7 driving + 1.7 charging = 8.4 hours
65mph = 6.2 driving + 1.9 charging = 8.1 hours
70mph = 5.7 driving + 2.0 charging = 7.7 hours
75mph = 5.3 driving + 2.4 charging = 7.6 hours
80mph = 5.0 driving + 2.8 charging = 7.8 hours

I'd throw in an arbitrary 30-60 minutes for fumbling with chargers, key fobs, getting lost, etc.

Notice that the "sweet spot" for time is 70-80 mph to drive that trip, just like the typical freeway speed of any car in California.

The longest gap that she had between 125 amp chargers was 127 miles from Salinas to San Luis Obispo. All the rest was easy.

For you "cheapskates", driving slow will save you money, but not time:

At ten cents per minute on the EVgo $14.95 monthly plan:

50mph - 83 min charging @ 10 cents per minute = $8.30
55mph - 97 min charging @ 10 cents per minute = $9.70
60mph - 104 min charging @ 10 cents per minute = $10.44
65mph- 111 min charging @ 10 cents per minute = $11.11
70mph - 125 min charging @ 10 cents per minute = $12.50
75mph - 143 min charging @ 10 cents per minute = $14.30
80mph - 167min charging @ 10 cents per minute = $16.70


Charging time is dependent on both charger speed and vehicle consumption rate. Since she drove by many perfectly good 125 amp "50kW" chargers while using 60 amps chargers, just a little education and a little planning can fix that.

But, assuming good planning and an average charge rate of 40kW (0.666 kWh per min) between 0% and 65% State Of Charge (SOC), then she could VERY easily drive 75-125 miles between charging locations.

Bolt EV Energy Consumption Rate
Flat, dry, hard surface roadway
Warm ambient temperature (above 60F / 15C)
No cabin heater use
Windows Up

50mph - 4.9 miles/kWh (204 wattHours per mile)
55mph - 4.6 miles/kWh (217 wattHours per mile)
60mph - 4.3 miles/kWh (233 wattHours per mile)
65mph - 4.0 miles/kWh (250 wattHours per mile)
70mph - 3.6 miles/kWh (278 wattHours per mile)
75mph - 3.2 miles/kWh (313 wattHours per mile)
80mph - 2.7 miles/kWh (370 wattHours per mile)

jjeff
Posts: 1387
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 12:55 pm

^^^ very nice comparison. I agree, the sweet spot seems to be 70mph where electricity at your rate would be 3.125 cents/mile(not figuring in your $15/month EVgo fee) or if I'm doing my math correct and comparing it to a 50mpg ICE Prius it would be like getting gas for $1.56/gallon( and not figuring in the cost of oil changes for the Prius).
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

GRA
Posts: 7241
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 3:06 pm

Course, if she'd driven 65 (say 230 max.) or 70 (210 max.) the whole way she could have easily made the trip from San Jose to Cal Poly (186 miles) non-stop with a reserve, and headed over to the eVgo QC (5 miles away) for an hour or so of charging/eating afterwards as per her original plan, while charging the phone at a jack in the restaurant (assuming that was critical - paper maps still work fine, don't rely on batteries, and give the passenger something useful to do), then back on the road with an 80% or so charge etc. Others have commented on staying at a hotel with L2 to get a full charge overnight, and so on.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

GRA
Posts: 7241
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 3:24 pm

GCR's David Noland reviews the Bolt:
Chevy Bolt EV tested by Tesla Model S owner: his assessment
http://www.greencarreports.com/news/110 ... ain/page-2
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

jjeff
Posts: 1387
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 4:27 pm

2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

lorenfb
Posts: 1241
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: Chevrolet Bolt - 60 kWh, 238 mi, < 7s 0-60

Sat Mar 18, 2017 5:55 pm

TonyWilliams wrote:
GRA wrote:... unlike the Bolt owner in the GCR article, which is why I wanted to get your times as well as hers. You weren't going to make all the beginner mistakes she did.


To cover the 400 miles while using 125 amp "50kW" charge stations at 40kW average rate (charging the Bolt EV battery ONLY between 0%-65% SOC only) every 75-125 miles requires this much time:

50mph = 8.0 driving + 1.4 charging = 9.4 hours
55mph = 7.3 driving + 1.6 charging = 8.9 hours
60mph = 6.7 driving + 1.7 charging = 8.4 hours
65mph = 6.2 driving + 1.9 charging = 8.1 hours
70mph = 5.7 driving + 2.0 charging = 7.7 hours
75mph = 5.3 driving + 2.4 charging = 7.6 hours
80mph = 5.0 driving + 2.8 charging = 7.8 hours

I'd throw in an arbitrary 30-60 minutes for fumbling with chargers, key fobs, getting lost, etc.

Notice that the "sweet spot" for time is 70-80 mph to drive that trip, just like the typical freeway speed of any car in California.

The longest gap that she had between 125 amp chargers was 127 miles from Salinas to San Luis Obispo. All the rest was easy.

For you "cheapskates", driving slow will save you money, but not time:

At ten cents per minute on the EVgo $14.95 monthly plan:

50mph - 83 min charging @ 10 cents per minute = $8.30
55mph - 97 min charging @ 10 cents per minute = $9.70
60mph - 104 min charging @ 10 cents per minute = $10.44
65mph- 111 min charging @ 10 cents per minute = $11.11
70mph - 125 min charging @ 10 cents per minute = $12.50
75mph - 143 min charging @ 10 cents per minute = $14.30
80mph - 167min charging @ 10 cents per minute = $16.70


Charging time is dependent on both charger speed and vehicle consumption rate. Since she drove by many perfectly good 125 amp "50kW" chargers while using 60 amps chargers, just a little education and a little planning can fix that.

But, assuming good planning and an average charge rate of 40kW (0.666 kWh per min) between 0% and 65% State Of Charge (SOC), then she could VERY easily drive 75-125 miles between charging locations.

Bolt EV Energy Consumption Rate
Flat, dry, hard surface roadway
Warm ambient temperature (above 60F / 15C)
No cabin heater use
Windows Up

50mph - 4.9 miles/kWh (204 wattHours per mile)
55mph - 4.6 miles/kWh (217 wattHours per mile)
60mph - 4.3 miles/kWh (233 wattHours per mile)
65mph - 4.0 miles/kWh (250 wattHours per mile)
70mph - 3.6 miles/kWh (278 wattHours per mile)
75mph - 3.2 miles/kWh (313 wattHours per mile)
80mph - 2.7 miles/kWh (370 wattHours per mile)


The above example hardly requires much analysis:

Given the leg 1 distance of 127 miles to the 1st QC, the Bolt's 200 mile range, and the speed limit, most
would drive at a speed of greater 65 but less than 80. Besides, 80 MPH on 101 is overly optimistic; traffic,
CHP, slow areas near King City/Paso Robles.

A simple rule is to drive at a max legal speed for traffic, road conditions/terrain changes using 75-80% of the
BEV's battery capacity to reach a known reliable/open QC station, i.e. ideally one that you've used before.
Each successive leg would use the same approach. The final leg should only require enough energy to reach
the final destination, assuming a layover greater than a full charge time.

Return to “Other Electric Cars & Plug-In Hybrids”