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 Post subject: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 7:15 am 
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Joined: Mon May 19, 2014 4:49 am
Posts: 602
Location: Ithaca, NY
Here in NY, charging stations arent as prevalent as in CA.

Im hoping to cover my butt on longer trips by purchasing a generator that can charge my Rav if needed. Something high amperage and voltage would be best.

I've read that a unit with a perfect, unmodified sine wave is best but which unit should I buy?.

(Id also include it as a tax deduction so Id like to have it to power my office or apartment houses i need.

THanks for our help!

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Last edited by jimbo69ny on Fri Nov 21, 2014 2:50 pm, edited 1 time in total.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 8:13 am 
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Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1742
Location: Los Altos, CA
Honda inverter type, as large as you can afford. I recall the model EU5000iS, but it no longer appears on Honda's site. EM5000iS or EU7000iS seem to be the closest, and in fact are the only inverter models that output 240V. These are approximately $3,500-$4,500.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 2:46 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
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Location: San Diego
miimura wrote:
Honda inverter type, as large as you can afford. I recall the model EU5000iS, but it no longer appears on Honda's site. EM5000iS or EU7000iS seem to be the closest, and in fact are the only inverter models that output 240V. These are approximately $3,500-$4,500.


Two of the Honda EU7000iS will allow full 40 amp "continuous" loads. One singular unit is 22 amps.

That's what I recommend.

This is not an area to get cheap. Plus, you can use it at your house as a backup generator with computers and electronics.

These units are heavy, at about 270 pounds each, so two of them are too heavy to just bolt on the rear bumper. I'd put them on a small trailer, and then you can open the rear door. With a small amount of electronics, you could power the car like the Euro version of the BMW i3 "REX".

Just drive the car a bit to burn down the battery, then use the remote start option to "spin up the APU". That will provide 9.6kW to the charger, or 85% of that into the battery (8.1kW).

If you start on a 227 mile trip at 60-65mph, you could drive for 3.5 hours.

Range at start with new condition battery of 41.8kWh, 70F degrees, level road, no wind, no heater:


Hour 0 - 142 miles plus 3.4 hours generator @ 27.5 miles per hour equals 93.5 miles extra, 235 miles total.


Hour 1 - 104.5 miles net (65 miles burned, 27.5 miles added @ 40 amps / 240 volt)


Hour 2 - 67.0 miles net


Hour 3 - 29.5 miles net


Hour 3.5 - 21 miles net remaining


I made the trip end here, because you need a reserve and the batteries will degrade. But, anywhere along the trip, you can either plug into any electrical outlet and have lunch, or add petrol to the generators while waiting to add power. In addition, towing the 1000 pound trailer will definitely put a dent in economy, so the actual range is probably closer to 200 miles over about 3 hours.

I wonder it the original RAV4 fuel tank will fit? Probably.

The cost and weight to do this makes a bigger battery seem pretty smart.


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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 7:06 pm 
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Joined: Thu Jul 31, 2014 12:54 am
Posts: 90
Location: Loomis, CA
I don't have any experience with this model, but would this 10kW portable generator be suitable?
It has a 14-50R plug!

http://www.generac.com/all-products/generators/portable-generators/xp-series/xp10000e

Still weighs 300 lbs!

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13.8kW Solar PV, EcoSolargy/SolarEdge
Solar pool heater (440 sq.ft)


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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 7:15 pm 
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Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1742
Location: Los Altos, CA
kiwiguy wrote:
I don't have any experience with this model, but would this 10kW portable generator be suitable?
It has a 14-50R plug!

http://www.generac.com/all-products/generators/portable-generators/xp-series/xp10000e

Still weighs 300 lbs!
That is a conventional generator, not an inverter type. Not recommended.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 7:33 pm 
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Joined: Thu Jul 31, 2014 12:54 am
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Location: Loomis, CA
But they have:
"TruePower technology that provides clean, smooth operation of sensitive electronics, tools, and appliances"

Whatever that means! :-)

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2014 Silver RAV4 EV #2851
Clipper Creek HCS-60
13.8kW Solar PV, EcoSolargy/SolarEdge
Solar pool heater (440 sq.ft)


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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 8:49 pm 
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Joined: Wed Mar 05, 2014 12:03 am
Posts: 240
Location: Vancouver, BC
kiwiguy wrote:
I don't have any experience with this model, but would this 10kW portable generator be suitable?
It has a 14-50R plug!

http://www.generac.com/all-products/generators/portable-generators/xp-series/xp10000e

Still weighs 300 lbs!

I have a 15 year old version of that 10kW Generac (10000EXL) I inherited sitting around that I was trying to make run so I can sell it. In doing research it seems like the Hondas are much better quality.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 9:17 pm 
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Location: Los Altos, CA
DevinL wrote:
I have a 15 year old version of that 10kW Generac (10000EXL) I inherited sitting around that I was trying to make run so I can sell it. In doing research it seems like the Hondas are much better quality.
Just like any other ICE, generators need to be started periodically to remain in working condition. Permanently installed backup generators usually auto-start weekly and run for 10 minutes or so.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Fri Nov 21, 2014 10:08 pm 
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miimura wrote:
DevinL wrote:
I have a 15 year old version of that 10kW Generac (10000EXL) I inherited sitting around that I was trying to make run so I can sell it. In doing research it seems like the Hondas are much better quality.
Just like any other ICE, generators need to be started periodically to remain in working condition. Permanently installed backup generators usually auto-start weekly and run for 10 minutes or so.

Indeed they do. This generator hasn't been started for ages, but I only ended up with it a few months ago. I don't think my Generac's experience is any indication of their current product (I really can't blame them for the thing sitting for over a decade) but while I've been digging around the internet in order to get the thing working again, I stumbled across more information about generators than I thought I'd ever need to know. Based on what I've read, if I had to go buy a generator I would certainly look at a Honda over a Generac.

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 Post subject: Re: Best generator to charge Rav EV?
PostPosted: Sat Nov 22, 2014 12:11 am 
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Joined: Thu Jul 31, 2014 12:54 am
Posts: 90
Location: Loomis, CA
I'm waiting for a 10kW fuel cell that runs off propane. Pick up a 5 gallon tank almost anywhere.

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Solar pool heater (440 sq.ft)


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