If Manhattan is getting 5.6 * 10^11 BTU of free heat energy every day, there isn't much of a reason to import more from outside. You could lose 4 orders of mag

If Manhattan is getting 5.6 * 10^11 BTU of free heat energy every day, there isn't much of a reason to import more from outside. You could lose 4 orders of magnitude to inefficiency and still have plenty to run your cars.