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Comparison and Optimization of Alternative Energy Sources for Cathodic Protection

Published: 19790312 by NACE NATIONAL
Author(s): Ian Munro

To date the majority of cathodic protection systems utilize either sacrificial anode or impressed current systems relying upon AC to DC rectifiers powered from the conventional electric power grid. In remote locations however, many alternative energy sources have been used with varying degrees of success. As the cost of conventionally derived electric power increases as a result of increasing fuel costs and as we move further from inhabited areas in the search for petrochemical reserves, the use of alternative energy sources becomes more viable as cathodic protection energy sources. Unfortunately, as everybody realizes the equipment necessary to convert this energy to electricity is not necessarily inexpensive.