About half that of a 1s.

I'm joking. From a strict power sense making power with 2s is easier on your ESC. AZ_Wolfie and I have run mod 1/12 against each other, he runs a 2s and an 8.5 turn, I run a ROAR setup of 1s and either a 4.0 or 3.5 turn. The power generated is equal, but I make much, much more heat with the 1s pack in the ESC and battery. I have to run a no-motor-limit ESC with a fan or I will get a thermal shutdown, where with the 2s setup runs a Tekin ESC and no fans.

After the race the top of my cars body is warm to the touch, as is the bottom of the chassis. That still boggles my mind, how I draw 6600mah in 500 seconds of run time for an average amp draw, not peak average over the whole run, of 47.5 amps with the 3.5.