Providing electricity through central generation can be divided into three segments: generation, transmission and delivery.
Generation is the actual production of electricity, which takes place at a power plant. Seven generation and transmission (G&T) cooperatives provide electricity to Iowa distribution cooperatives, which is produced by a variety of generating sources including: coal, nuclear, hydro, natural gas, wind, biomass and solar. The Energy Policy Act of 1992 allowed for wholesale competition in the generation area. Since that time, all generation companies have been able to sell their electrons on the open market.
Transmission is the physical transportation of electricity from the generation facility to the delivery company. Transporting this energy is accomplished via an interlocking grid of high-voltage lines spanning the country. Recent federal actions have opened up access to the transmission system so that all generation companies can feed their electricity into the transmission grid (for a fee), and all delivery companies can receive needed power from that grid.
Delivery involves the distribution of electricity – received from the generation facility, via the grid – for delivery to consumer's homes, farms and businesses over the delivery company's lines and poles. Iowa's distribution electric cooperatives deliver power to their members-owners through a vast network of distribution lines.
Technological innovation and changes in energy regulations and policies are transforming the electric industry. The Iowa Association of Electric Cooperatives has produced these solar PV resources to educate consumers who are considering installing their own solar PV generation: