Increasing transmission capacity by real time monitoring

Real time monitoring of the thermal capability of transmission lines can typically increase the line capability by 10-30%. This additional capability can be achieved with a typical cost of $80000-$120000 per circuit, which is generally a small fraction of a cost of a new line or a major physical upgrade. It thus appears clear that real time thermal rating could be one of the techniques to be considered under FERC Order EL01-47-00.