I need an under 20KW DC ChaDeMo Quick Charger

[waidy]

All Right, I admit it. I am getting a 85kWh Model S and am considering installing their High Power Wall connector which requires a 100Amp breaker. I was told my delivery date could be as early as Oct, 2012 and as late as Nov, 2012. I do have 14-50 in my garage, and I don't have to install the 100 Amp breaker. I am just thinking ahead.

 

[ElectricVehicle]

All Right, I admit it. I am getting a 85kWh Model S and am considering installing their High Power Wall connector which requires a 100Amp breaker. I was told my delivery date could be as early as Oct, 2012 and as late as Nov, 2012. I do have 14-50 in my garage, and I don't have to install the 100 Amp breaker. I am just thinking ahead.

40A @ 240V is enough to give you a full charge overnight - 8 to 10 hours. The High power connector is pretty nice, but unless you're going to drive 250 miles, come home and charge for another 250 miles of driving in the same day, 40A @ 240V, 10kW, 35 MPHC should easily do the trick. Someday will have EVSE that can coordinate with each other so you could have the Blink, Coulomb Tech and Tesla High Power Wall connector all charging at the same time on 100A, and they would just negotiate to use a lower power level, but they don;t do that now, and electrical code doesn't allow it yet... You can do the upgrade to Source Sharing EVSE's in a few years when they're available and when the electrical code catches up!

 

[LEAFer]

I agree with ElectricVehicle. Unless you are in a situation needing to "quick" charge yourself or someone passing thru on a long-distance trip ... the trouble and investment may not pay off. If you're just trying to be a good host to someone else's quick charging need ... well, that's mighty generous, but I personally would prefer they rely on Tesla's good intentions and super-charger deployment. Given your location they should not have any trouble satisfying their QC need somewhere else, yet near your home.

 

[waidy]

I agree with ElectricVehicle. Unless you are in a situation needing to "quick" charge yourself or someone passing thru on a long-distance trip ... the trouble and investment may not pay off. If you're just trying to be a good host to someone else's quick charging need ... well, that's mighty generous, but I personally would prefer they rely on Tesla's good intentions and super-charger deployment. Given your location they should not have any trouble satisfying their QC need somewhere else, yet near your home.

I am in the same line with LEAFer and ElectricVehicle. I am just investigating and most importantly, it is a learning experience finding out kVA load support. I have a 2x200 (400amp) main panel and a 400 Amp subpanel connects to one of the 200Amp bus from the main panel (I know it sounds confusing but it meets codes). There are lots of space available at the 400Amp Subpanel. As you see, I can expend a lot using the 400 subpanel. My concern is "load'.

 

[hill]

This one is 20KW output.

Small 20KW and 30KW Chademo charger developed by Japanese company, this looks like it could be deployed in European homes with 3 phase... of course "small and light" are all relative, its still 150 or 170 KG

http://www.nichicon.co.jp/english/new/new113.html" onclick="window.open(this.href);return false;

Credit for the find: "Transport Evolved" podcast, and Nikki Gordon Bloomfield

UL approval?

.

 

[ElectricVehicle]

Batteries concept:

A battery charger at 19.99999999kW max power draw pumping up a stack of batteries (how big, I don't know), and then a gigantic inverter, to then be converted to DC to pump in the car, seems horribly inefficient. But, for $48,000 per year in SDGE "demand" charges can buy a lot of equipment and inefficient electrical power.

ChaDeMo DC charger: $ 15,000- $30,000 costs the same for any plan

Less than 2 years of the demand charge will buy this:

60 kWh inverter: $35,000 (about the price of a new 60KVA gen-set)
Big Battery pack: $25,000 (total for 100kWh; $1500 per 6kWh Trojan Product ID: IND29-4V)
240 volt charger: $ 5,000 (under 20kW draw charger)
Install, tax, license, and destination charges: $ 20,000-?

Total $85,000, except for the ChaDeMo DC charger.

We've got a couple bucks left over from two years of the SDGE demand charge, so let's throw in $11,000 worth of solar for a nice sun shade.

Capstone microturbines in a Distributed Generation setup looks pretty good in comparison:
30 kW microturbine for $31.280.00 Guessing a 60 kW might come in around $50,000.
http://matrixinternational.com/MicroTurbine%20(DR" onclick="window.open(this.href);return false.pdf
http://www.dg.history.vt.edu/ch5/turbines.html" onclick="window.open(this.href);return false;
http://www.capstoneturbine.com/prodsol/solutions/cchp.asp" onclick="window.open(this.href);return false;
http://www.capstoneturbine.com/_docs/datasheets/C65%20&%20C65-ICHP%20NatGas_331035E_lowres.pdf" onclick="window.open(this.href);return false;

Economic Calculator
Based on your selected application, installing a Capstone MicroTurbine energy solution would provide electric power at an approximate variable operating cost of $0.035 / kWh.
http://www.capstoneturbine.com/apps/EconCalc/EconCalc2.asp?t=RF" onclick="window.open(this.href);return false;

Combined Cooling, Heating & Power - CCHP video (wmv download)
http://www.capstoneturbine.com/prodsol/solutions/cchp.wmv" onclick="window.open(this.href);return false;

Nice slides on a 2005 installation
http://www.intermountaincleanenergy.org/events/landfills/050811/presentations/pierce-capstone.pdf" onclick="window.open(this.href);return false;



Flooded lead acid batteries are likely a maintenance thing you don't really want to hassle with.

Lots more analysis to be done here if you get serious about it, but a Distributed Generation setup with CHP - Combined Heat and Power looks pretty good given the alternatives. If you can use the heat for processes that need lots of heat or run an absorption chiller on it for Air Conditioning the economics should get better.