Category
Description
Existing Hydropower Assets (EHA) 9505 Hawaii Plant Database
This dataset is an extension and subset of the Existing Hydropower Assets (EHA) Plant Database, 2025, released by Oak Ridge National Laboratory through HydroSource covering hydropower plants in Hawaii. The extension enhanced EHA to support modeling performed under the Department of Energy Hydropower Office's SECURE Water Act Section 9505 Fourth Assessment (9505).
Data Files
- EHA_PNNL_Hawaii_v1.0.gpkg: spatial dataset containing the location of the powerhouse and plant characteristics
- EHA_PNNL_Hawaii_POD_v1.0.gpkg: spatial dataset containing the location of the point-of-diversion and plant characteristics
- EHA_PNNL_Hawaii_v1.0.xlsx: spreadsheet containing plant characteristics matching the attribute table of the spatial dataset
Data Description
Enhancements to the dataset include:
- Updating plant’s spatial locations to explicitly represent the location of the powerhouse
- Identifying a plant’s point-of-diversion (source of water) spatial location
- Adding Intertie Name
- Revising the County attribute to reflect Hawaii Boroughs and Census Areas
- Revising the Pt_Own, OwType, and Dam_Own attributes with updated information
Users are referred to HydroSource for descriptions of fields included in the original dataset. Descriptions for fields added to the dataset are provided below:
Field — Description — Source
IntertieName — State of Hawaii electricity intertie — Hawaii Public Utilities Commission
Dcom* — Flag noting plants that have been decommissioned or are inoperable (see below) —NA
*Dcom has not been used in this dataset, but the attribute has been retained should additional information become available for future releases
Release Notes
None
Disclaimer
Every attempt was made to ensure accuracy, however errors may exist. Please note that this dataset was created from the 2025 version of EHA. EHA is updated annually and newer versions may contain more reliable information depending on need.