Energy, electricity: transmission and distribution loss, part 1

Self-tutoring about electricity: the tutor mentions the idea of transmission and distribution loss.

As I understand, transmission and distribution loss, regarding electricity, refers to the loss of energy due to heat that evolves in the conductors or other devices such as transformers. For the sake of convenience, let’s call this “t and d loss.”

Ideally, t and d loss is zero, and I always imagined it to be near zero. However, the world bank shows t and d loss by country. Thence, Canada’s seems to be five percent, Mexico’s twelve percent, and Ethiopia’s twenty-three percent.

Interesting, eh?