Hawaii Ocean Science & Technology (HOST) Park

NELHA's HOST Park has established itself as a premier clean energy test bed. It has provided leaders in the field of Ocean Thermal Energy Conversion (OTEC) with an incredible test location for closed and open cycle systems, as well as onshore and offshore systems since 1974. The park is also a prime location for outdoor real-world demonstrations of solar, ocean and biomass energy related projects. In addition to its natural assets, HOST Park presents unsurpassed organizational assets with clear goals, an updated master plan with over 250 acres slated for applied energy projects. NELHA is part of an ecosystem of organizations (State, Federal and County agencies, National Labs, Tech companies, non-profits, incubators and education organization) that serve as strategic partners for energy activities. HOST Park continues to build on its reputation as a successful energy test bed and international destination as a proving ground for clean energy innovation.

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Site Manager

Natural Energy Laboratory of Hawaii Authority

Additional Information

Test Site Website

Device Status Is the test site actively testing or in planning (active)? Or is it permanently closed for business (inactive)?

Active

Energy Resource

Thermal Gradient

Duration

1980 - Ongoing

Grid Connectivity

Grid Connected

Waterbody

Hoona Bay

Site Characteristics Geographic characterization for the test site location:<ul> <li>Open Ocean: Main body of ocean, not enclosed or partially enclosed by land</li> <li>Coastal: Open water near the coast, spanning between land and shelf boundary</li> <li>Enclosed Bay: water that is partially surrounded by land, with a mouth open to larger water</li> <li>Constricted Channel: A channel where water flows quickly due to narrowing by the land</li> <li>River: Water flowing from land towards a larger body of water</li></ul>

Coastal

Country

United States

Last Modified

17 June 2025

This Test Site has the following MRE Devices

Citation Formats

“Hawaii Ocean Science &#38; Technology (HOST) Park.” Marine Energy Projects Database: Test Sites, PRIMRE, United States Department of Energy, https:https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Test_Sites/Hawaii_Ocean_Science_%26_Technology_(HOST)_Park. Accessed <day> <monthRoman> <year>.

Marine Energy Projects Database: Test Sites. <year>. "Hawaii Ocean Science &#38; Technology (HOST) Park." Accessed <monthRoman> <day>, <year>. https:https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Test_Sites/Hawaii_Ocean_Science_%26_Technology_(HOST)_Park.