Overview
Waimanalo Beach Substation is an operational electrical substation in Hawaii, United States, owned and operated by Hawaiian Electric Company. It handles voltages of 46 kV and 12.47 kV, serving the local grid.
Waimanalo Beach Substation is an electrical substation located in Waimanalo Beach, Hawaii, United States. Owned and operated by Hawaiian Electric Company, the facility is part of the island of Oahu's electrical infrastructure, stepping down transmission voltages for local distribution. The substation operates at voltage levels of 46,000 volts (46 kV) and 12,470 volts (12.47 kV), typical for a medium-voltage substation that connects the transmission grid to distribution networks. As a substation in the United States, Waimanalo Beach Substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) reliability standards, with oversight from the Federal Energy Regulatory Commission (FERC) for interstate transmission. The facility is also subject to Hawaii Public Utilities Commission regulations. The substation likely employs standard switchgear and protection systems compliant with IEEE and NERC standards, ensuring grid stability and safety. The substation plays a critical role in supplying electricity to the Waimanalo Beach community and surrounding areas on Oahu's windward coast. Given Hawaii's isolated grid, each substation is vital for maintaining reliable power, especially in a region prone to tropical weather events. The facility's coastal location may require additional environmental considerations, such as corrosion-resistant equipment and storm resilience measures.
Environmental context
Located in a coastal area of Oahu, the substation faces environmental challenges typical of tropical island settings, including high humidity, salt spray, and potential hurricane impacts. These conditions necessitate robust equipment design and maintenance to prevent corrosion and ensure reliability. The facility's proximity to residential areas and natural habitats requires careful management of electromagnetic fields and noise, as well as adherence to environmental regulations for stormwater runoff and hazardous materials.
Frequently asked questions
Waimanalo Beach Substation is located in Waimanalo Beach, Hawaii, United States, on the windward coast of Oahu.
The substation operates at 46,000 volts (46 kV) and 12,470 volts (12.47 kV), typical for a distribution substation stepping down transmission voltage.
The substation is owned and operated by Hawaiian Electric Company, the primary electric utility serving Oahu.
Substations in the US must comply with NERC reliability standards for grid stability, FERC regulations for interstate transmission, and IEEE standards for equipment and safety.
As part of Hawaii's isolated grid, the substation ensures reliable power distribution to the Waimanalo Beach community, supporting residential and commercial needs in a coastal area vulnerable to weather events.