The Provincial Electricity Authority of Thailand (fig.), which is known in Thai as kaan fai fah suan phumiphaak, at work along a provincial road in Nakhon Nayok.

It was established as the government department responsible for providing electricity in 74 of the 77 provinces in Thailand, i.e. all except Bangkok, Samut Prakan and Nonthaburi, which are served by the Metropolitan Electricity Authority, known in Thai as kaan fai fah nakhon luang (fig.).