User avatar
wsbca
Posts: 505
Joined: Tue Aug 03, 2010 4:33 pm
Delivery Date: 0- 0-2011
Location: SL-E powered by 3KW AC Solar in SoCal

Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 12:14 pm

Jimmydreams wrote:
wsbca wrote: What I don't know is how much juice from the EVSE it took to cozy up the car during those 25 minutes. I'm hoping it was not operating at a full 3.3KW.
Once I get my car, I'll be able to tell you exactly how much juice it uses. I have a TED monitor set up with one 'monitor' set exclusively for the EVSE circuit. Right now, the Clipper Creek is reading .005kWh while 'resting' with nothing plugged in.
Looking forward to your data Jimmy - I might have to get myself a TED!

In addition to curiosity about the climate control pre-heat/cool load, I am still somewhat nervous about the efficiency of charging - we did our first charge last night from 46% to 80%, but with our analog single meter and the fact that I didn't precisely compare readings before and after the charge (didn't look at the after until the next morning) I am hesitant to speculate yet on how much we pulled from the wall to put that 34% (8kWh?) into the car. I do know it charged for ~2:20 - started at 8pm and emailed me that it had stopped at 10:20... so presumably it was on the order of 3.3 kW (onboard charger rating, right?) x2.33 hours which would match that 8 kWh. But the meter was really whipping forward when the charger kicked in (seemed significantly faster than it runs in reverse when we're generating 3KW from solar with the house load negligible) - our meter surely advanced somewhat more than the 8 plus our normal overnight (fridge) load...the question is how much more.

Jim - as to the TED "reading .005kWh" for the idle EVSE - does that indicate the cumulative total of kilowatt hours since the EVSE breaker got flipped on after your install (which could be described as "not much at all"), or do you mean it's actually drawing .005kW (5 watts) continuous while it's idle?...which would translate to 43kWh a year. Man I really hope the Blink does not draw 30W at idle as apparently described by the manufacturer to someone in another thread.
I was promised a jet pack!

User avatar
Jimmydreams
Posts: 1500
Joined: Fri Apr 23, 2010 6:44 pm
Delivery Date: 08 Jan 2011
Leaf Number: 0175
Location: Oceanside, Ca.
Contact: Website

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 12:17 pm

wsbca wrote: Jim - as to the TED "reading .005kWh" for the idle EVSE - does that indicate the cumulative total of kilowatt hours since the EVSE breaker got flipped on after your install (which could be described as "not much at all"), or do you mean it's actually drawing .005kW (5 watts) continuous while it's idle?...which would translate to 43kWh a year. Man I really hope the Blink does not draw 30W at idle as apparently described by the manufacturer to someone in another thread.
The Clipper Creek is drawing 5 watts at idle. I agree about the Blink. I think 30w is a bit much, even given it's wifi connectivity, etc. :?
JimmyD
http://www.jjhamilton.com/solar
Blue SL Leaf delivered 1/7/2011
EVP participant. EVSE: Blink
6.75kW PV solar

driveleaf
Posts: 166
Joined: Sun Aug 15, 2010 2:31 am

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 12:18 pm

AV describes their unit as drawing 5watts in idle mode. Irritating.

User avatar
wsbca
Posts: 505
Joined: Tue Aug 03, 2010 4:33 pm
Delivery Date: 0- 0-2011
Location: SL-E powered by 3KW AC Solar in SoCal

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 12:23 pm

driveleaf wrote:AV describes their unit as drawing 5watts in idle mode. Irritating.
On the plus side one could turn off the AV or Clipper units when not in use (perhaps by installing a switch, if the breaker is too awkward to get to, or if flipping a breaker repeatedly is not adviseable), without repercussions...but we probably won't be able to do that with the Blink at least not for the duration of the Project.
I was promised a jet pack!

User avatar
DaveEV
Posts: 6241
Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 1:32 pm

If the Blink really pulls 30w just sitting there, that's 21 kWh / month. I'm sure someone with a bit of time will quickly calculate how much that costs them when on one of the EV project TOU rates. I'd guess around $3/mo. Most disturbing is that it would account for about 5% of my current annual electricity usage - to do basically nothing.

If you make sure your EVSE disconnect is close to the EVSE, it should be easy to pull the switch so it's only on when you need it. Not sure what the cycle rating is on your typical blade type disconnect - but as long as there isn't load when you are turning on/off wear should be minimal.

User avatar
wsbca
Posts: 505
Joined: Tue Aug 03, 2010 4:33 pm
Delivery Date: 0- 0-2011
Location: SL-E powered by 3KW AC Solar in SoCal

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 2:26 pm

drees wrote:If the Blink really pulls 30w just sitting there, that's 21 kWh / month. I'm sure someone with a bit of time will quickly calculate how much that costs them when on one of the EV project TOU rates. I'd guess around $3/mo.
I'm going to guess $4.42 on M and $4.74 on H.

Really hoping it's not that bad!! The raw lost kwh could amount to 80 LEAF miles a month, but when you translate the wasted $ into potential super off peak kwh you could buy, that's more like 270 LEAF miles a month. I know it's not a lot of money for someone wealthy enough to buy the car in the first place, but if these here electric car contraptions really take off, that really adds up in terms of waste!
I was promised a jet pack!

DaveinOlyWA
Posts: 14385
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 3:26 pm

its funny that we whine about what our chargers are drawing when they are not doing their job when i bet everyone here has at least a half dozen vampire drains in their house running right now.
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; 2640.9 mi, 99.37% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

greenleaf
Posts: 519
Joined: Thu Aug 05, 2010 10:06 am
Location: SF Bay Area

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 4:11 pm

Talk about vampire loads. Just last week I discovered my central AC compressor draws 40W even on standby. I now switch off the breaker and will only switch it back on later in the year when it gets warm.
2011 Leaf: reserved 4/2010, delivered 3/2011 (VIN 9XX), sold 2/2014.
EVP Blink EVSE installed 4/2011.
OpenEVSE installed 3/2014.
3.22 kW DC Solar PV.

User avatar
DaveEV
Posts: 6241
Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 4:27 pm

DaveinOlyWA wrote:its funny that we whine about what our chargers are drawing when they are not doing their job when i bet everyone here has at least a half dozen vampire drains in their house running right now.
Even so - your point? Just because you may have vampires adding a few more is OK? A 30w vampire is pretty large.

DaveinOlyWA
Posts: 14385
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Charging - plugged-in climate control and EVSE overhead

Thu Jan 06, 2011 4:33 pm

drees wrote:
DaveinOlyWA wrote:its funny that we whine about what our chargers are drawing when they are not doing their job when i bet everyone here has at least a half dozen vampire drains in their house running right now.
Even so - your point? Just because you may have vampires adding a few more is OK? A 30w vampire is pretty large.

so what are you going to do about it? unplug it? flip the breaker every time u are not using it?

i agree 30 watts is large and not sure where that is coming from, but i would look elsewhere to save that wattage. now i really cant talk which is why i made the comment in the first place. i have at least a dozen around the house not to mention a computer that never gets turned off.
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; 2640.9 mi, 99.37% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Return to “EVSE / Charging Equipment and Networks”