would there still be power if bombs hit america would there still be power like if in bomb shelter connected to power grid would power be?

My coal fired refrigerator would still work

You should study information on EMP's - Electro Magnetic Pulses. Nuclear bombs set off high in the atmosphere would not hit humans with radiation but would bring an end to everything connected with electricity. That includes lights, gas, heat, water, sewage, police services, fire services, hospitals, food supplies, gas engines, batteries. One government estimate is that it is possible that 90% of the country could die within a year.

It would be best to assume that there would be nothing left of the grid and plan things that way

bombs will not be normal its pointless there is mass destruction and computer hacking to confuse commands it would be hell on earth there would be no escape survival would be pointless the world would be poisonous to life