corwin
Posts: 20
Joined: Fri Sep 03, 2010 7:31 am
Delivery Date: 28 Mar 2011
Location: Soquel, CA

Range question

Wed Jan 12, 2011 7:50 pm

Hey owners,
My commute to work one way is 70 miles, ending at about the same elevation as I start, but along the way, there's 5 or 6 hills of 100-200 feet up/down and then at the 60 mile mark, I have a 900 foot climb and descent. The majority of the drive (45 miles) is a nice two lane road from Santa Cruz to Half Moon Bay and I plan to cruise at about 62 mph. This is a "one way" question as I have several days to recharge before heading home.

I know that if this was all flat, it'd be no problem, but I've seen remarks about hills killing the range. Now I'm more than a little worried. Any educated guesses on how close to (or over) the limit I'll be?
Corwin
(March delivery date)

KeiJidosha
Posts: 916
Joined: Sat May 01, 2010 11:57 am
Delivery Date: 26 Jun 2011
Location: Simi Valley, CA

Re: Range question

Wed Jan 12, 2011 10:41 pm

corwin wrote:Hey owners,
My commute to work one way is 70 miles, ending at about the same elevation as I start, but along the way, there's 5 or 6 hills of 100-200 feet up/down and then at the 60 mile mark, I have a 900 foot climb and descent. The majority of the drive (45 miles) is a nice two lane road from Santa Cruz to Half Moon Bay and I plan to cruise at about 62 mph. This is a "one way" question as I have several days to recharge before heading home.

I know that if this was all flat, it'd be no problem, but I've seen remarks about hills killing the range. Now I'm more than a little worried. Any educated guesses on how close to (or over) the limit I'll be?
Corwin
(March delivery date)
Depends on the regen. Use eco mode. If you can decelerate and descend without using the mechanical brakes you will probably get ~80% of the energy back. You should expect to indicate ~5% less range/state of charge for every 1,000 feet you climb. If it gets tight, you can slow down. Headwind, rain, climate control, lights/defrost/wipers and impatient drivers on 17 will also cost you.

Driven conservatively, you will make it. But as the batteries age, it will get tougher.

User avatar
LakeLeaf
Posts: 1424
Joined: Mon Jun 07, 2010 4:15 pm
Delivery Date: 04 Aug 2018
Location: South Lake Tahoe, California

Re: Range question

Wed Jan 12, 2011 11:20 pm

KeiJidosha wrote: Depends on the regen. Use eco mode. If you can decelerate and descend without using the mechanical brakes you will probably get ~80% of the energy back. You should expect to indicate ~5% less range/state of charge for every 1,000 feet you climb. If it gets tight, you can slow down. Headwind, rain, climate control, lights/defrost/wipers and impatient drivers on 17 will also cost you.

Driven conservatively, you will make it. But as the batteries age, it will get tougher.

We really haven't seen any reports yet at the efficiency of the regen capture. I'm hoping we will see someone take on a several mile long grade and make some measurements. Please!

User avatar
garygid
Gold Member
Posts: 12469
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Range question

Wed Jan 12, 2011 11:38 pm

With about 6 x 200 = about 1100 feet, and adding 900 => 2000 feet of "climb". Without any Regen recovery, a 1000-foot climb is approximarely like 5 miles. So, a 10 mile "loss". But, with careful Regen, you MIGHT get 50% back, so maybe only a 5 mile "penalty".

So, your 70-mile trip becomes 75 to 80 miles. Doable if you do not go too fast and the battery pack has not lost too much capacity.

Plan B:
Any chaging opportunities along the route?
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
Craigslist: Xm5000Li Electric Motorcycle

gudy
Posts: 306
Joined: Thu Aug 19, 2010 10:17 am
Delivery Date: 20 May 2011
Location: Mountain View, CA

Re: Range question

Wed Jan 12, 2011 11:50 pm

I could probably go to half moon bay from redwood city and back, and then look at the amount of regen I got each way once the data gets in carwings.
If you're willing to not go over 55mph, I'd guess that you'll be perfectly fine.
1st Leaf Order (order made and confirmed on 08/31 10:40am)
Delivered on December 11th 2010
15000 miles so far

DaveinOlyWA
Posts: 14954
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Range question

Thu Jan 13, 2011 7:39 am

if you are talking about highway 1, that is a tough road to drive. its nothing but hills up and down and traffic will usually not allow you to vary your speed that much.

i think you will need to drive a bit slower. take advantage of the downhills as much as possible. you can extend range by reducing the amount of power needed to climb the hills by building up speed while descending. your objective is to use gravity as much as possible.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 11,333.1 mi, 93.73% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

User avatar
gasmiser1
Posts: 431
Joined: Fri Jun 18, 2010 3:27 pm
Location: Cambria, CA Central Coast of Calif.
Contact: Yahoo Messenger

Re: Range question

Thu Jan 13, 2011 7:56 am

gudy wrote:I could probably go to half moon bay from redwood city and back, and then look at the amount of regen I got each way once the data gets in carwings.
If you're willing to not go over 55mph, I'd guess that you'll be perfectly fine.
--------------------------------------------------------------------------------------
Olivier- I'd love to hear the results from this trip :mrgreen:
2nd leased 2014 Nissan LEAF, 2500 miles, leased 5/4/14
(1st Leaf, 3/29/11, leased until 5/4/14, 45,000 miles)
2014 Chevy Volt, 11,200 miles, leased 11/2013
Future Tesla Model S owner :-)
Central Coast EV Member
SF BayLEAF Member
Model S Member

corwin
Posts: 20
Joined: Fri Sep 03, 2010 7:31 am
Delivery Date: 28 Mar 2011
Location: Soquel, CA

Re: Range question

Thu Jan 13, 2011 7:24 pm

DaveinOlyWA wrote:if you are talking about highway 1, that is a tough road to drive. its nothing but hills up and down and traffic will usually not allow you to vary your speed that much.
Actually Hwy 1 between Santa Cruz and Half Moon Bay is a very easy drive with teeny hills and at 6:30am there's very little traffic. I think the key fact so far is the 1000 ft climb equals 5 miles. I should have good regen down the large hill (Hwy 92) as either direction is a good slope for regen. Thus, I will remain hopefully optimistic.

Thanks for the input.
-Corwin

Ohmie
Posts: 41
Joined: Wed Dec 29, 2010 1:57 pm

Re: Range question

Thu Jan 13, 2011 8:09 pm

The first time you do it, I'd be conservative, drive slowly, no cruise control, no climate control, eco mode, etc. You're sure to make it, no problem at all. From there, you can modify your driving, etc. I'm sure with various adjustments and experience, your range anxiety will dissipate completely and you'll end up getting to work quickly and comfortably.

What a great drive that is from Santa Cruz to Half Moon Bay! Hey, when does the convertible LEAF come out?!! Now that'd be the ticket!!

mike22
Posts: 5
Joined: Fri Jan 14, 2011 12:25 am

Re: Range question

Fri Jan 14, 2011 12:29 am

You'll really be stretching the battery once you get to that 1 or 2 year mark :)

Return to “General / Main Owners Forum”