A black hole in modern cosmology is a singularity: no width, or almost infinitesimally small.
Taking the equations of Einstein, and working backwards, a singularity seems to exist at the moment of the big bang event.

In big collapse process theory, subatomic particle accretion mass is hot and gaseous in the extreme. Black Hole energy is dense, and cold in the extreme (except in the center, where gamma rays emit).

The interior of a black hole body is packed as tightly as possible with matter. It has a greater circumference the more matter accumulates in it. The temperature at the center is most likely absolute zero... no movement whatsoever, with matter pressing against matter as tightly as is physical possible to achieve.

In many respects, a black hole energy is the exact opposite of SPAM energy.