Addressing Capacity Shortfall
Brighter Days
Ahead
At Guam Power Authority, we value our customers.
We've overcome challenges together, and ask for your continued support as we work to ensure a reliable power supply.
We're addressing issues by boosting capacity and exploring solutions to bridge the gap until the completion of the state-of-the-art Ukudu Power Plant by September 30, 2025.
We’re procuring temporary power and repairing generators and every effort aims to keep lights on for you.
And with your continued support, GPA works toward brighter days ahead!
198MW Ukudu Power Plant progress
Completion by September 2025
Actual accumulated progress including Engineering, Procurement, and Construction: 88.35% as of June 30, 2024.
Control Electrical Building June 2024.
Installation of the Inlet Duct Insulation Steel Structure and casing is ongoing.
Cable pulling and termination work is ongoing.
Treated Water Storage Tanks:
Treated Water Tank A - 5 Courses in place
Treated Water Tank B - 6 Courses in place
Steam Turbine piping work is ongoing.
Steam Turbine & Generator Building – Piping installation work is ongoing.
ULSD Storage Tanks Hydro testing work is completed for both ULSD Tanks. Construction of containment walls is ongoing.
Cooling Tower & Basin - Corrugated panel and Fan Deck installation is ongoing.
Fire Fighting Tank: Fire tank has been completed and filled with water.
Route 1 Piti Tank Farm Pipeline installation is ongoing along route 1 towards the Piti Tank Farm Installation work is also ongoing within the Piti Tank Farm.
Route 16 Pipeline installation is nearly completed. Backfilling and road restoration is ongoing.
Nimitz Hill - Above ground pipeline installation is in progress.
Treated Water Storage Tanks - Staging of tank walls is in progress
Heat Recovery Steam Generator (HRSG) - Insulation repair and replacement is ongoing
Gas Turbines and Generators (GTG) - Installation of air intakes is ongoing
GTG Building - Exterior siding installation is nearly complete
Demineralized Water Tank - Stair construction is completed
BESS - Excavation for the battery control building foundation is ongoing
Cooling Tower & Basin - Cooling Tower frame installation is nearly complete
Switchyard - Ring bus structures are in place
Control & Electric Bldg - Fire protection and external HVAC installation is in progress
Addressing Generation Capacity Shortfall
Piti 7 Repair of the Plenum
ECD: December 3, 2023
Capacity: 22MW to 30MW
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COMPLETED AHEAD
OF SCHEDULE 11/30
Utilizing Existing Battery
Energy Storage System (ESS)
ECD: Available to use in Feb 2024
Capacity: 16 MWH to be
utilized during peak hours
Currently In Use
Repairing the Typhoon-
Damaged Yigo Combustion
Turbine
ECD: April 2024
Capacity: 20 MW
Currently In Use
* Currently operating at 16MW
pending further maintenance.
Returning Caterpillar and
Wartsila Units to Service
(Tenjo, Talo’fo’fo &
Manenggon/Pulantat)
ECD: May 2024
Capacity: 16 MW
Currently In Use
*10 of 16MW Completed.
Procuring Temporary Power
ECD: July 2024
Capacity: 20 MW
Currently In Use
Increasing Existing
Cummins diesel units
located at Yigo site
ECD: Sept. 2024
Capacity: 14 MW
Restoring Capacity for Yigo
Diesel units to be placed
adjacent to the Tenjo
Vista Plant
ECD: September 2024
Capacity: 20 MW
Continuing to Expand
Interruptible Load Capacity
ECD: Ongoing
Capacity: Approximately 16 MW
currently
*ECD is Expected Completion Date