As used in this chapter:
The term "public utility" shall not include any person not otherwise a public utility, who provides or furnishes the services or commodity described in this paragraph only to himself, his employees or tenants as an incident of such employee service or tenancy, if such services are not sold or resold to such tenants or employees on a metered or consumption basis other than the submetering authorized under Section 77-3-97.
The term "public utility" shall not include any person not otherwise a public utility, who purchases electricity on a metered retail basis from the electric public utility that holds a certificate of public convenience and necessity for the area in which the person is located, and provides or furnishes a portion of that electricity, but not electricity from any other source, to the public for compensation directly and exclusively to charge battery-powered electric vehicles and plug-in hybrid electric vehicles. Any such person described in this paragraph is an end-use customer, whether or not such person receives compensation for battery or vehicle charging.
A public utility's business other than of the character defined in subparagraphs (i) through (iv) of this paragraph is not subject to the provisions of this chapter.
However, the term "affiliated interest" or "affiliate" shall not include a joint agency organized pursuant to Section 77-5-701 et seq., nor a member municipality thereof.
Miss. Code § 77-3-3