Copey–Cuestecitas and Copey–Fundación Transmission Lines, Colombia August 1, 2017 | Latin America Project Update The project involves the construction of two transmission lines. The first one is a 215-km long, 500 kV transmission line from the new Cuestecitas substation to the existing Copey substation. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password