Nonprofit cooperative corporations may be organized under this chapter for the purpose of engaging in rural electrification by any one or more of the following methods:
(1) Furnishing of electric energy to persons in rural areas who are not receiving central station service.
(2) Assisting in the wiring of the premises of persons in rural areas or the acquisition, supply or installation of electrical or plumbing equipment therein.
(3) Furnishing of electric energy, wiring facilities, electrical or plumbing equipment or services to any other corporation or to the members thereof.