maui1
Posts: 24
Joined: Fri Mar 01, 2013 2:29 am
Delivery Date: 26 Mar 2013
Leaf Number: 400459
Location: Maui, Hawaii

Re: Wagan ePower Cub for charging 2 Leafs

Sun Oct 20, 2013 2:33 pm

FYI - was using ~380 kwh / mo prior to Leafs (2) now ~750 kwh / mo. Again 3.3 kw chargers at 110.
2013 Nissan Leaf Model S 3.3 kw charger - Lease 24 mos. brilliant silver - and my other half
2013 Nissan Leaf Model S 3.3 kw charger - Lease 24 mos. black
1st 2013s on Maui!

cwerdna
Posts: 8397
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Wagan ePower Cub for charging 2 Leafs

Sun Oct 20, 2013 2:52 pm

maui1 wrote:FYI - was using ~380 kwh / mo prior to Leafs (2) now ~750 kwh / mo. Again 3.3 kw chargers at 110.

That's not too terrible before an EV w/2 people. I just downloaded my PG&E info and for the time I've been back in this house, my average monthly usage is ~293 kwh. It gets highest during winter months (~360 to 404 kwh) as I use electric space heaters during time that.

In the months that cover me having a Leaf, my average monthly usage is ~242 kwh, partly because I started working again and am not at home all day consuming electricity and that it's included no winter months yet. I generally only charge my Leaf @ home on weekends. The rest of the time is via free juice @ work.

Dryer is electric. Furnace and water heater are nat gas. Stove is electric but that hardly gets used. There's no AC here other than a rolling portable unit that I sometimes use when it gets really hot.
Last edited by cwerdna on Sun Oct 20, 2013 4:52 pm, edited 2 times in total.

'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

QueenBee
Posts: 1564
Joined: Sun Aug 08, 2010 5:14 pm
Delivery Date: 20 Jun 2011
Leaf Number: 2062
Location: Bellevue (Seattle), WA

Re: Wagan ePower Cub for charging 2 Leafs

Sun Oct 20, 2013 4:38 pm

So what does the feesability study do to your ROI? I'm thinking even with it you'll still have a very short ROI? Are you thinking that the fees will go away in the near term?

I'd definitely run the numbers on the inefficiencies of L1 relative to the cost of 240 volt receptacles and EVSEUpgrades.

maui1
Posts: 24
Joined: Fri Mar 01, 2013 2:29 am
Delivery Date: 26 Mar 2013
Leaf Number: 400459
Location: Maui, Hawaii

Re: Wagan ePower Cub for charging 2 Leafs

Mon Oct 21, 2013 12:09 am

Yes - thinking the fees will go away - only required based on a saturation % for my area.
2013 Nissan Leaf Model S 3.3 kw charger - Lease 24 mos. brilliant silver - and my other half
2013 Nissan Leaf Model S 3.3 kw charger - Lease 24 mos. black
1st 2013s on Maui!

smkettner
Posts: 7220
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: Wagan ePower Cub for charging 2 Leafs

Mon Oct 21, 2013 8:09 am

The kit is worthless as far as gathering energy and charging a LEAF.
Get a home grid tie system if you want to go solar.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
I-Pace on order for end of 2018 delivery

sitech
Posts: 18
Joined: Wed Sep 11, 2013 12:24 pm
Delivery Date: 08 Sep 2013
Leaf Number: 414424

Re: Wagan ePower Cub for charging 2 Leafs

Tue Oct 22, 2013 3:43 pm

The OP doesn't want to get a grid-tie PV system yet. His utility wants to nail him $3K-4K just for an interconnection study (read post #1).

The Wagan thingy is useless. 55Ah battery, so if you empty it from full, you'd get 660Wh. The Leaf has a 24kWh battery. Say you drive even just 10 miles every day, you'd need about 3kWh to top up.

I don't think off-grid PV will cut it either - say your Level 2 EVSE advertises 20A. Your PV won't be able to deliver 20A continuous (cloud, weather, time, etc). Dunno how the Leaf's charger will respond to a "Hey the EVSE says I can draw 20A but I'm not getting it" condition.

Best bet would be off-grid PV with battery backup. But that's a hefty investment and will never pay off with current PV battery storage technology (aka flooded lead acid).

Since OP mentioned PV market saturation, it makes sense that the utility needs to be sure the local environment can take another PV install. If you can DIY, another option would be to do a stealth PV install using a small PV system. But you have to only turn it on when you're charging your Leaf or check to ensure you don't have an older utility meter that counts backwards flow as forward/delivered usage. Not worth the risk IMO. Sorry.

QueenBee
Posts: 1564
Joined: Sun Aug 08, 2010 5:14 pm
Delivery Date: 20 Jun 2011
Leaf Number: 2062
Location: Bellevue (Seattle), WA

Re: Wagan ePower Cub for charging 2 Leafs

Tue Oct 22, 2013 4:25 pm

sitech wrote:Best bet would be off-grid PV with battery backup. But that's a hefty investment and will never pay off with current PV battery storage technology (aka flooded lead acid).

Since OP mentioned PV market saturation, it makes sense that the utility needs to be sure the local environment can take another PV install. If you can DIY, another option would be to do a stealth PV install using a small PV system. But you have to only turn it on when you're charging your Leaf or check to ensure you don't have an older utility meter that counts backwards flow as forward/delivered usage. Not worth the risk IMO. Sorry.


Even with the $3-$4k study I think getting on grid PV is the best option. I suspect the ROI is still amazing. Obviously the gamble is the cost of electricity between now and when (or even if) things change the study is no longer needed or is cheaper/etc.

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