Question about other power hungry items on an EV conversion

[Randall]

Hello all:

I am just starting to look at an EV conversion, my background is aerospace engineering, so I shouldn't be totally lost, but there appears to be some murky areas here that I would appreciate feedback on.

1. Air conditioning - after google searching for about 2-3 hours, I finally was able to find the actual power specs on a typical AC unit, the Zexel DKV-14C, and found that it is power hungry consuming 1100 watts at 700 rpm, then climbing to 4000 watts at 2500 rpm.  (I assume the clutch disengages at higher rpms?)  This means a 4.5 horsepower motor? or to count on the fact that we are going to use up to 4 hp to run the AC?

2. Power steering - how much power does the typical PS pump consume?  This information is almost non-existent under a google search.  Do EV conversion companies offer a retrofit electric motor?  Or do we have to go a custom electric steering pump all the way?

3. Power brakes - I assume this means vacuum assist.  Assuming this, we now have to have a vacuum pump (and electric motor also) to do this.

So far I count 3 additional electric motors besides the main drive motor.

Regarding item #1, do people ignore it at the moment and hope that technology improves so that it automatically solves itself?

Regarding the other motors, what do we finally end up with?  4 or 5 electric motors under the hood?

Thanks for some solid advice, it IS appreciated.

Randall

[leitmotif]

Re air conditioning - I think you have left out a very important consideration ie where do you live?
Conversely here in Seattle cab heat and defrost are very important.

If you do not want to pay the bill for power brakes, power steering then do not get a vehicle that has all that stuff OR redesign front end and brakes to eliminate the need for motor - lot of agony etc. 
My conversion will be 56 Chev pickup no power brakes or steering AND I do not have to fool around with any computer control.

IF I were stuck with all that power stuff I would hook a motor to it and measure amps and volts and derive HP demand thus Kw
OR assume 5 Kw per unit size the battery accordingly and then take measurements.
Dan Bentler

[Randall]

I did find a nice AC unit by Sierra from Tecumseh, in case we decide that it is necessary.

(If you did an EV in Arizona, the need would be obvious)

[delle5base]

I did find a nice AC unit by Sierra from Tecumseh, in case we decide that it is necessary.

(If you did an EV in Arizona, the need would be obvious)

Which AC unit did you find?