CCU Approves Resolution to Award Contract For Underground Line from Marbo to Pagat

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Guam – The Consolidated Commission on Utilities Tuesday night approved a resolution to award a contract, subject to PUC approval, for the construction of a 34.5 kV underground line from the Marbo Substation to the Pagat Substation.

The construction is expected to cost approximately $5M. The project will now be forwarded to the Public Utilities Commission for approval.

“Customers being served by the Pagat Substation are vulnerable to outages due to the substation not having a redundant transmission line,” stated Melinda Camacho, P.E., Acting Assistant General Manager of Operations, “GPA desires to provide a loop transmission system for the Pagat Substation to improve power reliability and to mitigate against future damages associated with typhoons on existing overhead transmission and distribution lines. This system improvement will expedite service to customers during restoration.”

The Marbo to Pagat 34.5 kV Underground Line project involves intercepting the existing Radio Barrigada to Marbo overhead transmission line and routing the line through the Pagat Substation along Route 15. This in effect will provide two partially underground lines, 1.6 miles each in length, with sources from the Radio Barrigada and Marbo substations serving the Pagat Substation. These feeds to Pagat Substation will complement the existing
transmission tie in with the Macheche Substation. The project will further improve system reliability by upgrading the antiquated power circuit breakers and protective relays at Marbo Substation.