Kapolei Hydrogen Plant
Overview
StatusFeasibilityInternational Energy Agency · as of 2026
Country · regionUnited StatesInternational Energy Agency · as of 2026
TechnologyOther electrolysisInternational Energy Agency · as of 2026
ProductH2International Energy Agency · as of 2026
Capacity12.5 MWInternational Energy Agency · as of 2026
Capacity values retain their recorded units and scope. MW, kt H₂/y and Nm³ H₂/h are different measures; this page does not convert or add them without a shared operating basis. “Other Electrolysis” and “Unknown PtX” are recorded classifications, not a specific electrolyzer design or power-to-X route.
Details
Technology & product
Configuration DetailUnknown PtXInternational Energy Agency · as of 2026
Status & timeline
EventDLNR filing reports PAR deemed the hydrogen component no longer viable and revised the proposal to solar PV and battery storage (28 August 2026)
Date online (tracker field)2027 (meaning under review)International Energy Agency · as of 2026
Additional project information
Administrative AreaKapolei, Hawaii, USAInternational Energy Agency · as of 2026
Capacity (Nm³ H₂/h)2,779 Nm³ H₂/hInternational Energy Agency · as of 2026
Capacity (kt H2/y)2.17 kt H2/yInternational Energy Agency · as of 2026
Capacity (Announced Size)0.5-0.8 ktH2/y productionInternational Energy Agency · as of 2026
Timeline
No recorded project events.
Sources & record history
Sources
- IEA Hydrogen Projects dataset Shared by 12 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- Hawaii Department of Land and Natural Resources Amend Feedlot Public Hearing Request, 28 August 2026 · 2026-08-28
Field sources
Shared date, confidence and value status appear once with their source above; a dash in the table refers to that source context.
| Field | Shown value | Original value | Source | Date basis | Meaning |
|---|---|---|---|---|---|
| Name | Kapolei Hydrogen Plant | View exact valueKapolei Hydrogen Plant | IEA Hydrogen Projects dataset | — | — |
| Country | United States | View exact valueUnited States | IEA Hydrogen Projects dataset | — | — |
| Configuration Detail | Unknown PtX | View exact valueUnknown PtX | IEA Hydrogen Projects dataset | — | — |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Technology | Other electrolysis | View exact valueOther electrolysis | IEA Hydrogen Projects dataset | — | — |
| Capacity | 12.5 MW | View exact value12.505771894720642 MW | IEA Hydrogen Projects dataset | — | — |
| Event | DLNR filing reports PAR deemed the hydrogen component no longer viable and revised the proposal to solar PV and battery storage (28 August 2026) | View exact valueDLNR filing reports PAR deemed the hydrogen component no longer viable and revised the proposal to solar PV and battery storage (28 August 2026) | Amend Feedlot Public Hearing Request, 28 August 2026 | Source dated 2026-08-28 | Current |
| Event | Date online : 2027 | View exact value{"date":"2027","date_precision":"year","event":"Date online","basis":"iea_hydrogen_projects_raw.csv"} | IEA Hydrogen Projects dataset | — | — |
| Progress Status | Feasibility | View exact valueFeasibility study | IEA Hydrogen Projects dataset | — | — |
| Administrative Area | Kapolei, Hawaii, USA | View exact valueKapolei, Hawaii, USA | IEA Hydrogen Projects dataset | — | — |
| Capacity (Nm³ H₂/h) | 2,779 Nm³ H₂/h | View exact value2779.060421049032 Nm³ H₂/h | IEA Hydrogen Projects dataset | — | — |
| Capacity (kt H2/y) | 2.17 kt H2/y | View exact value2.166666666666667 kt H2/y | IEA Hydrogen Projects dataset | — | — |
| Capacity (Announced Size) | 0.5-0.8 ktH2/y production | View exact value0.5-0.8 ktH2/y production | IEA Hydrogen Projects dataset | — | — |
Record history
1 current sourced value · 7 older values · Record updated