rclams wrote: TimeHorse wrote:
And did I mention my EVSE
can do nearly 20W charging.
So basically a little more than a nite light?
I can appreciate your interest in Super Off Peak charging - where are you located?
And how many miles do you expect to use your LEAF per year? Sounds like quite a few. We're leasing and have a 12k per year/1k per month "target" in mind.
D'Oh! Fixed in original. 20W is about 4 times the Vampire power of the Clipper Creek CS-100 EVSE, and yes, I took that into account in my calculations.
5W it turns out isn't unreasonable for vampire power given some of the stats I've read about other EVSEs but there are no bells and whistles on the CS-100: no cell-phone or wireless connection, no touch-screen display. Just a button to start. Pretty basic.
(Then again, never tested,
I'm in Virginia, and what I'm talking about is Dominion Virginia Power's new pilot program for TOU rates for EVs. I need to write part 2 of the post that gives the specifics of each new rate but you can read more about them here
The crux of it is 1500 customers are going to get this special rate, half with an EV-only second meter rider and the other with a household EV schedule. The household EV schedule would obviously put the whole house under the TOU rate but the EV Rider would put the EVSE on its own meter. Both are TOU with super-off-peak rates 1am - 5am, and IIRC, household has on-peak, intermediate, off-peak and super-off-peak rates. If you want more details I could put my but into gear and write that part 2.
As for mileage, I expect the average day to be about 75, 37 to work, 36 to get home, or there abouts, mostly Interstate. So pretty much a full charge given traffic and weather. I'm looking at all kinds of contingencies too. But man, having a full charge in super-off-peak is nice. I should run those numbers again to see how nice but I do recall it's not a huge savings, but it is a modicum.
Edit: Wait, I have it right here: Schedule EV (Rider) would be $451.66 / year or 6.33 cents/kWh average under 3.3kW; the EV portion of the Household bill under Schedule 1EV would be $425.33 / year or $5.96 cents/kWh.
With a 6.7kW charger: $369.89 / year; 5.18 cents/kWh for Schedule EV and $349.78 / year; 4.90 cents/kWh Schedule 1EV. So we're talking about $75-$80 a year in savings. Hard to break even for the cost of the 6.7kW charger upgrade on just these numbers but I still say the convenience of a faster charger is nice, especially when ChaDeMo isn't available at the charge site (such as a dealership).
Disclaimers: Cents per kWh assume all costs, including taxes, fuel, transmission, distribution and generation. Assumptions are 95% charge (22.8kWh) used per weekday, 50% of that each weekend day (11.4kWh), 3 & a third miles per kWh fuel efficiency, and just under 24k miles per year driven. The 95% e-fuel usage is based on the idea of loss between EVSE and traction battery as well as waste from adverse weather and traffic. Fuel efficiency is thus based on power at wall not power at battery (so I admit 3.3333 is a bit optimistic).
RIP CO2 Fre
, 27 months, 42,282 mi & 11 bars.
unAmerican Job & Nissan's Rapid Depreciation cost $20,000!
on the road daily w/o Charge at Work
Long Live CO2 Fre
, Maxed 2013 SL, 20,000 mi/yr lease.
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