Electric fan

No wipers,horn, or heater. Just lights, gas gauge. All other are on a different fuse box run threw a relay.

One thing to keep in mind is that hopefully the fan will only be running when the car is stopped or going real slow.
The down side is that the fan will only be running when the car is stopped or going real slow.
See what I mean there?
Normal running of the fan will usually be at real low RPM's where the alternator doesn't help a lot anyway.
I pull in and shut the engine down and maybe 30 seconds later the fan comes on to compensate for the climb in temp from not circulating the coolant, and brings it back down.
The next time I start the car the alternator replaces what was used out of the battery from the fan running after shutdown and restarting the engine.
When this is happening the electric fan isn't running because the temps are already a lot lower.

I can tell you I run a stock 60 amp alternator with a thermally controlled fan that comes on and goes off even if the car is turned off and I don't have any problems with it.
The controller is set to turn the fan on at 210 and back off at 195 so it never really comes on until I shut the car off or sit at a stoplight long enough for it to get up to 210.
If it is already on and I pull in and shut the car off the fan keeps running until the coolant in my motor gets back down to 195.
I actually like this, because it takes that recent shut down higher temps and pressures off the system real quick.

Hope I explained that ok. :D