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General Category => TED5000 Support => Topic started by: jlsoaz on May 27, 2015, 05:47:49 AM

Title: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on May 27, 2015, 05:47:49 AM
I'm wondering what results others are seeing as to their home's energy use when it is largely not in use other than awaiting the return of denizens.  Just to be clear: solar harvesting doesn't count here.  This is just about your home's energy use, not its net energy harvesting minus use equation.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: Support 4 on May 27, 2015, 09:52:53 PM
What is really a pain is seeing how my energy usage increases when we turn on the Air Conditioning.

Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on May 28, 2015, 07:34:46 AM
I was out a few days in January.  I'm right on the 4kWh line.  Or maybe slightly below, so I voted 3-4.
(http://veiks.com/forumphotos/3/ted1.jpg)
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on June 03, 2015, 06:55:12 PM
I was out a few days in January.  I'm right on the 4kWh line.  Or maybe slightly below, so I voted 3-4.
cool chart.  I couldn't understand it at first since the y axis is not readily apparent as to quantity, but then I got it.

I also was out recently and ended up experimenting a bit.  The first time, I ended up where I knew I'd be roughly at the 3.6 kWh level.  The next time I unplugged a few small things that I've been thinking would help.  It got me down to about 2.5.  This table shows it (ignoring the couple of days of slightly higher usage when I was there for part of the day).

(http://jlaz.com/Files/20150603/000062.jpg)

I think it would be down around 2.2 or so if I were not leaving a light on for security.  

Things that made a difference included:

- turning off circuits at the breaker panel: garage, HVAC, dishwasher
- unplugging 5 cordless phones
- turning off shower hot water recirculator (generally off anyway, but sometimes I forget).
- unplugging a couple of alarm clocks.
- turning off surge protector on one or two other things.
- unplugging one or two smaller UPS.
- turned off all internet related.  I guess I'd leave it on if I could figure out how to access ted5000 remotely, but I find it too difficult and so have not tried recently.

I should have but didn't unplug the TED5000 display.  This would have saved a slight amount each day.

A negative is that I need to turn on the vacation function on the solar hot water heater which I think then uses more electricity over time by recirculating the liquid to the roof at night so it will cool off and not build up too much heat or pressure.

There are other negatives to this strategy in terms of inconvenience or other.  I turned back on the HVAC circuit but did not wait 24 hours, instead I waited only about 9, so I hope that I didn't damage it.  

In theory the overall use can go as low as maybe 55 Watts (although unfortunately I don't remember the number with certainty) but it seems to have been averaging more around 100 Watts.  I'm not sure about explaining all of the difference, though I guess it is largely or entirely things that cycle (eg: the refrigerator, the solar hot water heater motor on vacation mode).

I don't think I can change my vote on my poll, but I guess eventually I should change it to 2-3.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on June 04, 2015, 06:33:54 AM
cool chart.  I couldn't understand it at first since the y axis is not readily apparent as to quantity, but then I got it.
Yea I should have said that the Y axis was 0-20 kwh.  It's easy for me to know what it means since I wrote the program.   ;D

The only big consumers I would have had left were the refrigerator, cable box, and the furnace blower.  Dropping the cable box would have dropped 0.65 kwh.  Everything else would be pretty small.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on June 04, 2015, 08:08:29 AM
cool chart.  I couldn't understand it at first since the y axis is not readily apparent as to quantity, but then I got it.
Yea I should have said that the Y axis was 0-20 kwh.  It's easy for me to know what it means since I wrote the program.   ;D

The only big consumers I would have had left were the refrigerator, cable box, and the furnace blower.  Dropping the cable box would have dropped 0.65 kwh.  Everything else would be pretty small.

Just wondering, why leave the cable box on?
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on June 04, 2015, 04:13:52 PM
Just wondering, why leave the cable box on?

The cable box is also a DVR, I had some TV shows that I wanted to record while I was out.  I think there is an awful lot of power wasted in cable boxes all across the nation.  The power in mine doesn't drop at all when it's turned "off".

Also had to leave the furnace on low too to keep the pipes from freezing.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on June 05, 2015, 05:56:30 PM
Just wondering, why leave the cable box on?

The cable box is also a DVR, I had some TV shows that I wanted to record while I was out.  I think there is an awful lot of power wasted in cable boxes all across the nation.  The power in mine doesn't drop at all when it's turned "off".

Also had to leave the furnace on low too to keep the pipes from freezing.

I think it might be useful to create a list of devices that seem to stand out as being particularly clear candidates for needing improved efficiency:

initial nominations:

- some cable boxes
- always-on crankcase heater approach to HVAC systems
- cordless phones
- [edit to add] garage door motors and related, standing waiting to receive a signal.  Not sure how much this uses.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on June 06, 2015, 05:42:57 AM
I think it might be useful to create a list of devices that seem to stand out as being particularly clear candidates for needing improved efficiency:

initial nominations:

- some cable boxes
- always-on crankcase heater approach to HVAC systems
- cordless phones
- [edit to add] garage door motors and related, standing waiting to receive a signal.  Not sure how much this uses.

I think my refrigerator defrosts itself more often than it needs to and there is no way to control that.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on June 06, 2015, 09:27:11 PM
Interesting about the fridge, I started a separate thread for nominations and put your name on the two you had mentioned, but I'll take your name off if that's not to your liking.

My fridge I think I'm supposed to manually clean out of frost (it is a Sunfrost brand, very efficient) but I seldom do it.

I think it might be useful to create a list of devices that seem to stand out as being particularly clear candidates for needing improved efficiency:

initial nominations:

- some cable boxes
- always-on crankcase heater approach to HVAC systems
- cordless phones
- [edit to add] garage door motors and related, standing waiting to receive a signal.  Not sure how much this uses.

I think my refrigerator defrosts itself more often than it needs to and there is no way to control that.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on June 07, 2015, 05:55:42 AM
Interesting about the fridge, I started a separate thread for nominations and put your name on the two you had mentioned, but I'll take your name off if that's not to your liking.

Okay by me.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on July 19, 2015, 01:15:54 AM
Looks like we've got another vote or two in the over 6 kWh category.  I'm a little surprised, this would seem to figure to about 250+ Watts average.  I wonder what the main electric power-usage items are while people are away from home?

Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: TheBackRoads on July 31, 2015, 12:39:41 AM
Better question, what DO you do to get under 6KW/day while gone?  Do you guys turn off breakers?  My stuff is off when I'm away, but lots of phantom loads ~250W.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jfpetesn on August 01, 2015, 04:56:54 PM
Freezer, 3 Refrigerators, Home Server, Pool are my big ones.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: RussellH on August 02, 2015, 11:16:22 PM
Freezer, 3 Refrigerators, Home Server, Pool are my big ones.
DVR can be another.  Even when it appears to be off, it may actually be on waiting to record.

Another is a tank water heater.  (I have a 30 gallon one.)  While away on a two week vacation, I calculated that the average power draw was about 7W.  Guess how much power a timer uses?  If you said 7W, you'd be correct.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: RussellH on August 02, 2015, 11:19:37 PM
but lots of phantom loads ~250W.
Frankly, I think phantom loads are overrated.  Typical is 1-2W.  I doubt if you have 100 devices plugged in all the time.

So I don't think the phantom load is the issue as much as a few unidentified loads.  The list above is a good start.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: pfletch101 on August 03, 2015, 01:57:25 AM
DVR can be another.  Even when it appears to be off, it may actually be on waiting to record.

Yes, my Comcast Cable box/DVR uses 25W whether it is 'On' or 'on Standby'. As far as I can determine, the only difference between the two states is that the front panel LEDs are off when it is 'on Standby'!
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: Canada_Guy on August 21, 2015, 12:13:15 PM
I run about 400 to 500 watts when my house is at idle, the dark hours of the night, or when I'm away. That's 9.6 to 12 kWh per day.

I can't start too list all the stuff I have running, but here's a few.

Microwave, stove, fridges freezer, thermostat, heat-pump controls, alarm system, water softener controls, deep well pump control, water circulating pump timer, Cable boxes (3), TV sets (3), answering machine, yard light timer, bathroom fan timers, smoke detectors, irrigation timer, driveway gates controller, and a bunch more.

Everyone sucks some juice and it adds up.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: RussellH on August 21, 2015, 09:59:12 PM
fridges freezer, water circulating pump, Cable boxes (3),....

Everyone sucks some juice and it adds up.
Yes, it does, but I'll bet the stuff I highlighted is half, if not more, of your idle power.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tstolze on August 25, 2015, 01:10:19 AM
fridges freezer, water circulating pump, Cable boxes (3),....

Everyone sucks some juice and it adds up.
Yes, it does, but I'll bet the stuff I highlighted is half, if not more, of your idle power.

I agree, put the cable boxes and TV's on power strips or smart power strips, I would guess the cable boxes plus the TV's are drawing 40-100 watts per set while off/standby, of course if they are DVR's then they will not record unless they have power.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on September 04, 2015, 02:38:07 AM
Better question, what DO you do to get under 6KW/day while gone?  Do you guys turn off breakers?  My stuff is off when I'm away, but lots of phantom loads ~250W.

Hi TheBackRoads:

I think this is a good question.  (I've had another one while reading through, which is I guess I'm wondering what folks use their TED device for, because in some cases it seems to be a bit different than my use approach, which involves trying to zoom in on various loads, including tiny ones, and getting a sense of how they affect the overall energy use at my house.).

Anyway, to get back to your question, what do I do to get under 6 kW/day when gone?

I had posted a list of measures in a previous message, and I'll paste some of it here:

- turning off circuits at the breaker panel: garage, HVAC, dishwasher
- unplugging 5 cordless phones
- turning off shower hot water recirculator (generally off anyway, but sometimes I forget).
- unplugging a couple of alarm clocks.
- turning off surge protector on one or two other things.
- unplugging one or two smaller UPS.
- turned off all internet related.

To this I would amend that lately I haven't been doing all these things (I don't unplug all cordless phones these days for example) and so I come back to a house that uses about 3.5-4 kWh per day, rather than 2.5.

There are a variety of other thoughts though.  I guess various points large and small:

- I have one refrigerator/freezer, it is sized for a one-person household (about 12 cubic feet) and is generally regarded as one of the world's most efficient IIRC (Sunfrost brand).  It cost a lot of money and uses (according to claims when I first bought it) about 0.6 kWh per day, on average.
- my home is inherently energy-saving (www.terra-dome.com) and only 1,600 square feet plus garage.  It's also set up as a one person household, so I don't have to be too worried about others when I make some of these "what do I unplug" decisions.
- if I really want to save energy, I turn off the circuit to the garage and manually walk back into the house upon returning from a trip, rather than having the garage door openers stand at the ready for days or weeks.
- someone mentioned their security alarms or smoke alarms taking energy.  My smoke alarms and security sensors are battery powered.  My security system though does have a component that is plugged in and has increased home energy use about 240 wh per day, I'd say.
- I've installed one or two or more few things which in theory are about saving energy but which ultimately in some ways take a bit of energy.  This includes not only the motor on my solar hot water but also the inverter linked to my solar and home batteries.
- Overall, from day one I have refused to listen to the idea that a power draw is too small and so I shouldn't bother about it.  It all adds up, I say, and so I try to consider if something really needs to be plugged in and running, or not.

With all that said, for a larger household with a conventional house and lots of other things going on, I think I'd be using a lot more energy both when away or at home.  So, in some ways, now that I think about it, 6-7 kWh per day doesn't seem that bad, though I do tend to think that there are probably a few measures some folks could take to get that down at least a bit.

One footnote, I do not bother with any sort of DVR type considerations but instead tend to buy-and-stream.  So, I never thought of it as an energy saving measure, but I guess in the end it is.  I always make certain to have a surge protector with an on/off switch on my TV and most other electronics appliances, and for my TV and streaming device this is definitely off at all times when not in direct use.  I"ve tried some smart power strips and so far haven't figured them out, so I stay with my old-school remember-to-turn-off-the-strip approach, for now.  I do think it helps, in part because the streaming device has no off switch and in part due to the vampire load inherent to the TV waiting for the remote command.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on September 07, 2015, 07:35:43 PM
Better question, what DO you do to get under 6KW/day while gone?  Do you guys turn off breakers?  My stuff is off when I'm away, but lots of phantom loads ~250W.
Hi TheBackRoads:
[...]
what do I do to get under 6 kW/day when gone?
[...]
I had posted a list of measures in a previous message, and I'll paste some of it here:
[...]

Thinking about it, a more succinct way to summarize - I take the approach that every little thing counts, and there are more little things than might be apparent at first look.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: panikale on September 19, 2015, 02:34:07 PM
 ;) ;) ;)
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: mikesjunk on January 13, 2016, 12:46:41 PM
I answered in the .5 to 1 as that's what I see each day at setback, so from 8am to around 2pm and midnight to 5:30am.  For a vacation it would be harder to vote as things like outdoor temp and if the heater/AC are going to kick on are an important contributor.  And as noted above water heaters.  So I think the better question is what is the smallest level that can be sustained for some time period usage(several hours).

When I originally bought mine quite some time ago I had a fairly large salt water aquarium system running.  Where I lived also offered a time of day usage rate.  When I built the house I had a separate panel put into the basement for the sole purpose of the fish room.  So with a 2 MTU system I was able to see what that panel was using by itself.  So from my analysis of my usage I switched to TOD and then put all my aquarium timers to take advantage of the lower TOD rates.  Lights, pumps, etc came on at 7PM off at 2AM.  I figured my system was costing $75 a month to run.  Another interesting thing was diving deeper into the usage (via a Kilowatt) I found that there was a big difference in the amp draw of a pump recently cleaned and one not( .7 vs 2 amps).  I ended up putting the pumps on ball valves and couplers so I could perform monthly cleaning on them.

Interesting that just last week where I live now our utility company has installed meters that I can monitor my usage down to the hours, almost real time(about 4 hour lag).  I currently have two 200amp panels in my house so I each one has an MTU.  Someday I'd like to figure out what my shop is using.

Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on February 01, 2016, 03:34:37 PM
I answered in the .5 to 1 as that's what I see each day at setback, so from 8am to around 2pm and midnight to 5:30am.  For a vacation it would be harder to vote as things like outdoor temp and if the heater/AC are going to kick on are an important contributor.  And as noted above water heaters.  So I think the better question is what is the smallest level that can be sustained for some time period usage(several hours). (...)

It's been some time since I logged into this forum to see how this poll was doing and it's really good to see we have some additional folks recording their information, and that in some cases TED users are able to get their homes down under 2 or 1 kWh per day when they are away.  I was beginning to think in creating categories in these low usage areas, I had somewhat misjudged.

MikesJunk, in the case of the information you left above, I am not quite clear.  Are you saying that your choice of 0.5 to 1 is not based on the kWh used per day while you are away but instead some other metric such as projecting more of an idealized number based on a baseline minimal kW number and then projecting this out over 24 hours?  I think this is a very interesting number that I myself pay attention to a lot, but I also think it's a somewhat different question.  Perhaps we should start a separate poll for it (I would be game).  

For my poll question about how much energy one's home uses while we are not at home, I think I wanted more of a "warts and all" empirically-measured number that would reflect inconvenient intermittent spikes that may deviate above the minimums, or some seasonal effects.  Perhaps indeed this is what you provided and I just got confused.

Very interesting to read of how you studied certain energy usage areas and made improvements.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: 34by151 on February 07, 2016, 07:27:58 PM
You might want to read what I have done with load shedding over in the developers section
http://www.theenergydetectiveforums.com/index.php/topic,3397.0.html

While the object of my code is to maximise my battery storage and eliminate non renewable power
It would work equally as well to reducing the loads while on holidays

Cheers
34by151
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on February 14, 2016, 02:33:54 PM
You might want to read what I have done with load shedding over in the developers section
http://www.theenergydetectiveforums.com/index.php/topic,3397.0.html

While the object of my code is to maximise my battery storage and eliminate non renewable power
It would work equally as well to reducing the loads while on holidays

Cheers
34by151

Thanks, that's quite a project you've got going.

You mention on that thread that your household consumption is around 15 kWh.  I'm not sure of the details on that, but do know you what is your home's consumption while you are away traveling?  For some of the swimming-pool-related energy use you discuss, does that continue while you are away?  Given the size of the system, I imagine that in some ways the overall home energy use is up by a bit in order to power the system itself.  In my case for example I have one Outback inverter that I think uses about 30 Watts when idle (in fact, I'm not sure if that is yet properly reflected in my TED measurements, so I may have to revise my own home energy use estimate upward).
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: Kevin on March 12, 2016, 11:50:38 PM
I run about 400 to 500 watts just for my in-house server farm, add in appliances (fridge, freezer, DVR, etc) and my daily average usage when not at home is double that.

I'm not really concerned about tracking down the small loads, more interested in looking for unexpected large loads and trend over time.

Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on July 25, 2016, 05:49:46 AM
Uploading a screenshot of my (nearly) whole house electric power use while away recently, between 3.2 and 3.3 kWh per day.  (There is an area not monitored properly by my TED but, comparing to my bills, I don't think the amounts there are very significant).
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: JeanaPerry on August 26, 2016, 01:00:38 PM
Hi..i am a new user here. In my case the cable box is also a DVR, I had some TV shows that I wanted to record while I was out.  I think there is an awful lot of power wasted in cable boxes all across the nation.  The power in mine doesn't drop at all when it's turned "off".Also had to leave the furnace on low too to keep the pipes from freezing.

printed circuit board assembly china (http://www.7pcb.com/)
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: DanS26 on August 26, 2016, 04:37:39 PM
I have a 35 year old SubZero built in refrigerator/freezer that uses 8 to 10 kWh per day by itself. So why don't I replace it with a energy efficient model?  Hahahaha  That would cost me $15,000.....so if I could save 80% on energy that would be 8 kWh per day or $1.00/day since my power cost $.125 per kWh.  Thus it would take me 41.1 years to save that $15k.

That SubZero will run another 35 years with just a few grand in parts.....so I'll just be an energy dinosaur.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: Kevin on July 10, 2017, 11:08:01 AM
I run about 400 to 500 watts just for my in-house server farm, add in appliances (fridge, freezer, DVR, etc) and my daily average usage when not at home is double that.  I'm not really concerned about tracking down the small loads, more interested in looking for unexpected large loads and trend over time.
I retired one server and replaced the full-size Dell with a small XeonD server and solid state drives.  Now I'm down to about 300W for the server farm, including the power drawn by the PoE switch (feeds cameras, etc so they don't need their own wall wart).

I have a 35 year old SubZero built in refrigerator/freezer that uses 8 to 10 kWh per day by itself. So why don't I replace it with a energy efficient model?  Hahahaha  That would cost me $15,000.....so if I could save 80% on energy that would be 8 kWh per day or $1.00/day since my power cost $.125 per kWh.  Thus it would take me 41.1 years to save that $15k.

That SubZero will run another 35 years with just a few grand in parts.....so I'll just be an energy dinosaur.
It is nice to be able to quantify energy calculations, instead of just guessing. 
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on January 24, 2018, 05:59:55 PM
I run about 400 to 500 watts just for my in-house server farm, add in appliances (fridge, freezer, DVR, etc) and my daily average usage when not at home is double that.  I'm not really concerned about tracking down the small loads, more interested in looking for unexpected large loads and trend over time.
I retired one server and replaced the full-size Dell with a small XeonD server and solid state drives.  Now I'm down to about 300W for the server farm, including the power drawn by the PoE switch (feeds cameras, etc so they don't need their own wall wart).
[...]
For what it's worth, a few added comments from my end as to what I've been up to on energy at my house, since starting this poll:
- got my solar and my batteries all sorted.  No appliance efficiency improvements that I'm aware, but (maybe) some improvements I think in overall solar kWh per day harvested.
- got a used Plug-in Hybrid Chevy Volt.  How many kWh extra per day does it add to my home use?  I have no good idea, I can't get the Ted5000 to work on that panel.
 Wild guess @ average 15 electric miles per day = about 5 kWh per day added to home use.  When away traveling, this is not the case though, the vehicle is either at the airport or driving with me.
- no really strong progress on home "baseline", so I am still  between 3-4 kWh per day when away traveling, though I guess recently there are signs that I can get this back down below 3 kWh per day (I forget where I was with this when I filled out the poll).  Maybe even below a "measured" 2 kWh per day if I was really into it.  This is just a matter of more carefully going through the house, if I feel like it, and turning off or unplugging certain small items.  I say "measured" because with the TED5000 not working on that one panel, I'll assume that my actual use could be a bit higher.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on January 24, 2018, 08:06:56 PM
- got a used Plug-in Hybrid Chevy Volt.  How many kWh extra per day does it add to my home use?  I have no good idea, I can't get the Ted5000 to work on that panel.
 Wild guess @ average 15 electric miles per day = about 5 kWh per day added to home use.  When away traveling, this is not the case though, the vehicle is either at the airport or driving with me.
If your wild guess is close, it sounds pretty good.  At least at the rates we have around here.  What amp breaker do you need to plug that into?
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on February 06, 2018, 02:48:07 AM
- got a used Plug-in Hybrid Chevy Volt.  How many kWh extra per day does it add to my home use?  I have no good idea, I can't get the Ted5000 to work on that panel.
 Wild guess @ average 15 electric miles per day = about 5 kWh per day added to home use.  When away traveling, this is not the case though, the vehicle is either at the airport or driving with me.
If your wild guess is close, it sounds pretty good.  At least at the rates we have around here.  What amp breaker do you need to plug that into?

A few years ago, I had a 7.2 kW J1772 Level 2 charge station installed.  At 240 Volts, in theory this would be 30 amps.  However, with the Leaf and the Volts that I've had, neither one would accept higher than about 3.3 kW, so they were not drawing that much juice. 

[edit: not 100% sure this answers the question, but at least clarifying: it is 240 Volts, not 120.... also, installing the 240 Volt equipment in my garage kind of forced the issue, along with my solar system, battery system and everything else, so an entirely new panel in my garage from when I moved into the house.]
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: tlveik on February 06, 2018, 10:29:45 PM
A few years ago, I had a 7.2 kW J1772 Level 2 charge station installed.  At 240 Volts, in theory this would be 30 amps.  However, with the Leaf and the Volts that I've had, neither one would accept higher than about 3.3 kW, so they were not drawing that much juice. 

[edit: not 100% sure this answers the question, but at least clarifying: it is 240 Volts, not 120.... also, installing the 240 Volt equipment in my garage kind of forced the issue, along with my solar system, battery system and everything else, so an entirely new panel in my garage from when I moved into the house.]
Yep, that answers my question.  So you your case you're less than 15 amps, that's not bad at all.  Less than I expected.
Title: Re: Poll: How many kWh per day does your home use when you are away traveling?
Post by: jlsoaz on February 09, 2018, 07:30:36 PM
A few years ago, I had a 7.2 kW J1772 Level 2 charge station installed.  At 240 Volts, in theory this would be 30 amps.  However, with the Leaf and the Volts that I've had, neither one would accept higher than about 3.3 kW, so they were not drawing that much juice. 

[edit: not 100% sure this answers the question, but at least clarifying: it is 240 Volts, not 120.... also, installing the 240 Volt equipment in my garage kind of forced the issue, along with my solar system, battery system and everything else, so an entirely new panel in my garage from when I moved into the house.]
Yep, that answers my question.  So you your case you're less than 15 amps, that's not bad at all.  Less than I expected.

Yes, I think it's both vehicle and equipment and electrical system dependent.  I had a friend visit who was driving a Tesla Model X and the Teslas are known for fairly fast AC charging, if the output can provide it.  So, I don't recall the exact numbers, but I think he was drawing something like 30 amps, in that case.