Overview
Kapalama Substation is an operational electrical substation in Honolulu, Hawaii, owned and operated by Hawaiian Electric Company. It handles voltages of 46 kV and 11.5 kV, supporting the island of Oahu's grid.
Kapalama Substation is an electrical substation located in Honolulu, Hawaii, United States. It is owned and operated by Hawaiian Electric Company, the primary electric utility serving Oahu. The substation operates at voltage levels of 46 kV and 11.5 kV, indicating its role in subtransmission and distribution within the island's power grid. As part of the Hawaiian Electric system, Kapalama Substation operates under the regulatory oversight of the Hawaii Public Utilities Commission and must comply with NERC reliability standards for grid stability. The substation's dual voltage levels suggest it serves both medium-voltage distribution and lower-voltage local loads, typical for urban substations in island grids. The substation plays a critical role in delivering electricity to Honolulu's urban and industrial areas. Its location in the state's capital and economic hub underscores its importance for community services, businesses, and infrastructure. The facility contributes to grid resilience in a region prone to natural hazards like hurricanes and volcanic activity.
Environmental context
Located in Honolulu, Kapalama Substation operates in an urban coastal environment with high population density. The substation's voltage levels and urban setting imply proximity to residential and commercial areas, requiring careful management of electromagnetic fields and noise. Hawaii's isolated grid relies on imported fossil fuels and renewable energy, making substations like Kapalama critical for integrating distributed solar and wind resources while maintaining grid stability.
Frequently asked questions
Kapalama Substation is located in Honolulu, Hawaii, United States, at coordinates 21.323477, -157.883187.
Kapalama Substation operates at 46 kV and 11.5 kV, serving subtransmission and distribution functions.
Kapalama Substation is owned and operated by Hawaiian Electric Company, the primary electric utility on the island of Oahu.
As part of the US electrical grid, Kapalama Substation must comply with NERC reliability standards and is regulated by the Hawaii Public Utilities Commission.
Kapalama Substation helps distribute electricity to Honolulu's urban area and supports grid stability, including integration of renewable energy sources like solar and wind.