Power plants planned and retiring in Hawaii
Hawaii plans 467 MW, 13% of its 3,474 MW in service (29th of 51). 108 MW is being built or tested; solar leads at 171 MW.
Hawaii: planned against running
Hawaii planned, by fuel
- Solar 171 MW (37%)
- Storage 160 MW (34%)
- Other 135 MW (29%)
Hawaii operating, by fuel
- Solar 586 MW (17%)
- Storage 515 MW (15%)
- Wind 233 MW (7%)
- Hydro 32 MW (1%)
- Oil 1,884 MW (54%)
- Other 224 MW (6%)
When Hawaii capacity arrives and leaves
MW due online and retiring in Hawaii, 2026 to 2030: 5 rows
| Year | Hawaii planned MW | Hawaii retiring MW |
|---|---|---|
| 2026 | 76 | No data |
| 2027 | 68 | No data |
| 2028 | 40 | 32 |
| 2029 | 103 | No data |
| 2030 | 180 | No data |
5 rows from EIA-860M.
CSVHawaii projects dated after 2035 or without a year: 0 MW.
Where the Hawaii projects are
Hawaii: 4 counties shaded, darker for more planned MW.
Filter Hawaii planned projects
Filter the 15 planned project lines in Hawaii.
467 MW across 15 project lines, 13% of the 3,474 MW operating in Hawaii.
- Puuloa Energy, Honolulu: 103 MW other, online 2029
- Keamuku, Hawaii: 86 MW storage, online 2030
- Keamuku, Hawaii: 86 MW solar, online 2030
- Kuihelani Phase 2, Maui: 40 MW solar, online 2028
- Hu Honua Bioenergy Facility, Hawaii: 32 MW other, online 2027
What the Hawaii numbers say
Hawaii runs 3,474 MW today. The planned list would add 467 MW (13%) while 32 MW (1%) of operating units carry a retirement date. Through 2035, Hawaii has 467 MW due online and 32 MW due to retire there.
Hawaii planned mix: 71% solar, storage and wind, 0% natural gas. Hawaii stages: 108 MW under construction or in testing, 212 MW permits pending, 147 MW early planning, no approvals started. Hawaii retired 281 MW from 2021 to 2026 and has 237 MW on the canceled or postponed list.
Hawaii capacity by fuel and status
| Hawaii fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Hawaii, MW |
|---|---|---|---|---|---|
| Solar | 586 | 171 | – | – | 121 |
| Storage | 515 | 160 | – | 6 | 116 |
| Wind | 233 | – | – | – | – |
| Coal | – | – | – | 180 | – |
| Hydro | 32 | – | – | – | – |
| Oil | 1,884 | – | 32 | 95 | – |
| Other | 224 | 135 | – | – | – |
| All fuels | 3,474 | 467 | 32 | 281 | 237 |
Hawaii counties with the most planned capacity
| Hawaii county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Hawaii County | 212 | 4 | Storage |
| Honolulu County | 192 | 18 | Other |
| Maui County | 40 | 1 | Solar |
| Kauai County | 24 | 2 | Storage |
Largest planned projects in Hawaii
| Hawaii plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Puuloa Energy | Honolulu | Other | Early planning, no approvals started | 2029 | 103 |
| Keamuku | Hawaii | Storage | Permits pending | 2030 | 86 |
| Keamuku | Hawaii | Solar | Permits pending | 2030 | 86 |
| Kuihelani Phase 2 | Maui | Solar | Permits pending | 2028 | 40 |
| Hu Honua Bioenergy Facility | Hawaii | Other | Under construction or in testing | 2027 | 32 |
| AES Waiawa Phase 2 Solar | Honolulu | Storage | Under construction or in testing | 2026 | 30 |
| AES Waiawa Phase 2 Solar | Honolulu | Solar | Under construction or in testing | 2026 | 30 |
| KRS I Anahola Solar Hybrid | Kauai | Storage | Early planning, no approvals started | 2027 | 12 |
| KRS II Koloa Solar | Kauai | Storage | Early planning, no approvals started | 2027 | 12 |
| Hamakua Energy Plant | Hawaii | Storage | Early planning, no approvals started | 2030 | 8 |
Hawaii against its neighbors
Hawaii: planned MW equal 13% of operating. Nearest in the ranking: Idaho plans 15% of what it runs (1 points above Hawaii); Michigan plans 15% of what it runs (2 points above Hawaii); Pennsylvania plans 13% of what it runs (0 points below Hawaii); Vermont plans 13% of what it runs (1 points below Hawaii).
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Sources
EIA-860M inventory for Hawaii: 226 operating generators, 15 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Hawaii
Questions
Hawaii: how much new power plant capacity is planned?
467 MW, 13% of the 3,474 MW Hawaii runs. 108 MW is being built or tested in Hawaii.
Hawaii: what kind of power plants are planned?
Solar leads Hawaii with 171 of 467 planned MW.
Hawaii: which power plants are retiring?
32 MW of Hawaii units have a retirement date, of which 0 MW is coal and 0 MW natural gas.
Will Hawaii get all the planned plants?
Not necessarily. Hawaii has 237 MW canceled or postponed, and 281 MW (coal the largest group) retired from 2021 to 2026.