South Texas Electric Co-op

South Texas Electric Cooperative Inc. is a cutting-edge Generation and Transmission Cooperative that has been providing wholesale electric services to member distribution cooperatives since 1944. With a mission to deliver reliable and economical electric power, STEC serves over 290,000 members in forty-seven South Texas counties through a diverse portfolio of energy sources, including wind, lignite, natural gas, diesel fuel, and hydroelectric power.

Headquartered at the Sam Rayburn Power Plant Complex in Nursery, Texas, STEC operates transmission line and substation service facilities in Pearsall and Donna. With a total capacity of 1,865.3 MW, their primary generation sources include the Sam Rayburn Power Plant, Red Gate Power Plant, and long-term purchase power agreements with San Miguel Power Plant, Magic Valley Generating Station, Amistad Dam Power Plant, Falcon Dam Power Plant, Peñascal Wind Power Project, and Javelina II Wind Power Project. Through a vast network of electrical substations and transmission lines, STEC ensures the reliable delivery of electric power to its member cooperatives.

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