Guam Power Authority To Install $35 Million Battery Backup System

40mw energy storage to reduce intermittent power outages

By John I Borja 

HAGÅTÑA, Guam (Pacific Daily News, May 15, 2017) – Guam’s first energy battery system is set to be constructed, installed and connected to help with the islandwide power system.

Guam Power Authority on Monday met with technology company LG CNS to sign off on the nearly $35 million contract for two energy storage systems totaling 40 megawatts.

The battery system is expected to significantly reduce the intermittent power outages the island experiences, according to GPA General Manager John Benavente. A 24-megawatt system will be built in the Hagåtña Substation while the Talofofo Substation will house a 16-megawatt system.

Close to 1,400 net metering customers also will benefit from the battery system. The system will serve as a backup when solar energy production is low on days with cloudy or rainy weather, Benavente said. In the evening and early morning, the storage system will help guard against any major loss of a generating unit, he added.

“We promise to carry out this project,” said Gilbert Gilho Choi, president of LG CNS America. It’s a great honor to contribute to preserving the beautiful island with the help of our technology, he said.

LG CNS is a smart technology company based in South Korea with branches all over the world, including the U.S., Europe and China. It specializes in the consultation and construction of an energy storage system, among other technological services, according to its website.

In addition to the contract awarding, LG CNS and GPA also have an operations and maintenance contract that will be implemented over a span of 25 years.

According to the contract, LG CNS will have 12 months to complete the project.

Renewable energy

The energy storage system is one step in a bigger plan to transition the main power grid into an era of renewable energy. As of now, Benavente said the island uses only 5 percent of renewable energy. In the next five years, GPA plans to raise that to 20-25 percent.

Overall, the renewable energy projects will benefit all of Guam’s customers because it helps with costs, according to Joey Duenas, Consolidated Commission on Utilities chairman.

Pacific Daily News
Copyright © 2017 Guam Pacific Daily News. All Rights Reserved

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