Abstract
We consider a comparative study of economic effects for power transmission lines based on traditional technology and superconductivity. A simple theoretical model of competitive energy market includes suppliers, network companies and consumers interacting within a transmission network. In the simplest case, this net consists of two nodes, connected with one transmission line. It is shown that superconductivity is beneficial due to the scale economy. This principle is valid for superconductive lines because of fixed energy inputs required for cooling the cables. The economic advantages of superconductivity are based on the absence of energy losses caused by resistance in metallic wires and on the possibility to increase the maximal load several times compared to traditional transmission lines. In contrast, traditional lines are subject to decreasing returns, because energy losses in these lines increase non-linearly with load. We demonstrate that the superconductive line ensures a higher integral return than the traditional line under large volumes of power transmission.
Published Version
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