import copy


def small_core_zero_power(small_core_power):
    """Generate zero-power AssemblyPower object"""
    zero_power = copy.copy(small_core_power)
    zero_power.power = copy.deepcopy(small_core_power.power)
    zero_power.power_density = copy.deepcopy(small_core_power.power_density)
    zero_power.power *= 0
    zero_power.power_density *= 0
    return zero_power