Overview
Waiau Substation, operated by Hawaiian Electric Company, is an operational electrical substation in Hawaii, United States. It handles voltages of 138 kV and 46 kV, serving as a key node in the local grid.
Waiau Substation is an operational electrical substation located in Hawaii, United States, and operated by Hawaiian Electric Company. The facility handles transmission-level voltages of 138 kV and 46 kV, indicating its role in both high-voltage transmission and sub-transmission distribution within the Hawaiian electric grid. The substation operates under the regulatory framework of the United States, where the Federal Energy Regulatory Commission (FERC) oversees interstate electricity transmission, and the North American Electric Reliability Corporation (NERC) enforces reliability standards. As part of the Hawaiian Electric system, it supports the island of Oahu's power infrastructure, which relies on a mix of fossil fuels and renewable energy sources. Waiau Substation plays a critical role in maintaining grid stability and reliability for the surrounding urban and industrial areas. Its strategic location and voltage levels make it an essential component for electricity distribution, supporting residential, commercial, and industrial customers in the region.
Environmental context
The substation is situated in an urban area of Oahu, Hawaii, where the local environment is characterized by a tropical climate and proximity to the coast. Electrical infrastructure in such settings must consider salt spray corrosion and hurricane resilience. The facility's operation supports the integration of renewable energy sources like solar and wind, which are increasingly important for Hawaii's clean energy goals.
Frequently asked questions
Waiau Substation is located in Hawaii, United States, on the island of Oahu. Its approximate coordinates are 21.3893 N, -157.9604 W.
Waiau Substation handles voltages of 138 kV and 46 kV, serving both transmission and sub-transmission functions in the Hawaiian Electric grid.
Waiau Substation is operated by Hawaiian Electric Company, the primary electric utility serving the island of Oahu.
Substations in the United States must comply with NERC reliability standards for grid stability and FERC regulations for interstate transmission. Additionally, local utility standards and ISO/IEC 61850 for substation automation may apply.
Waiau Substation plays a key role in distributing electricity across Oahu, supporting the integration of renewable energy sources and ensuring reliable power supply to residential, commercial, and industrial customers.