FieldProspects

Honolulu County, Hawaii

Honolulu County, Hawaii has 91 power projects in the FieldProspects database: 73 operating plants totaling 2.4 GW and 18 planned projects totaling 191.5 MW. No data center record lists the county. Oil leads with 1.4 GW across 21 projects. No planned project is past its listed in-service date.

Data as of Grid region: Hawaiian ElectricRefreshed monthly
91
power projects, planned and operating
191.5MW
planned generation, 18 projects
2.4GW
operating generation, 73 projects
0
planned projects past their listed in-service date
Map

Honolulu County and its neighbors

Counties shaded by data center MW on record, planned to operating. The county has no neighbors in the atlas.

Honolulu no data centers
no data center MWunder 100 MW100 to 1,000 MW1,000 to 5,000 MW5,000 to 15,000 MW15,000 MW or more no page yet

Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers

Headline finding
8%

of the county's operating generation is in the queue as new capacity: 191.5 MW planned across 18 projects against 2.4 GW operating.

Operating generation2.4 GW
Planned generation191.5 MW

Technology mix

91 projects, 2.6 GW planned and operating

Oil1.4 GW21 projects, 55%
Solar399.8 MW35 projects, 15%
Battery Storage369.4 MW9 projects, 14%
3 other technologies387.7 MW26 projects, 15%
Which companies own these 91 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

73 plants operate inside Honolulu County, 2.4 GW. The queue adds 191.5 MW across 18 projects.

Figure 1

Operating and planned generation by technology

MW in Honolulu County

OperatingPlanned
OilOperating 1.4 GW 21 projects
SolarOperating 354.7 MW 31 projects
SolarPlanned 45.1 MW 4 projects
Battery StorageOperating 326.4 MW 6 projects
Battery StoragePlanned 43 MW 3 projects
BiomassOperating 60.4 MW 10 projects
BiomassPlanned 103.4 MW 11 projects
WindOperating 126.6 MW 3 projects
Municipal Solid WasteOperating 97.3 MW 2 projects
View as table
TechnologyStatusProjectsMW
OilOperating211,428.9
SolarOperating31354.7
SolarPlanned445.1
Battery StorageOperating6326.4
Battery StoragePlanned343
BiomassOperating1060.4
BiomassPlanned11103.4
WindOperating3126.6
Municipal Solid WasteOperating297.3
Operating: 2.4 GW. Planned: 191.5 MW. If every planned project is built, county generation would reach 2.6 GW.
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026.
Figure 2

Planned generation by listed in-service year

MW. Years before 2026 are past due.

Past dueDue 2026 or later
050100150 Snapshot year 76 2026 12 2027 2028 103 2029
View as table
YearPlanned projectsMW
2026575.7
2027212.4
202800
202911103.4
No planned project is past its listed year

What changed since June 4, 2026

15 projects in Honolulu County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.

Open the change feed
0
added to a queue, 0 MW
0
came online, started construction or signed an interconnection agreement, 0 MW
0
cancelled, dropped or went inactive, 0 MW
13
slipped their in-service date, 163.4 MW

Every change in Honolulu County

Project, what changed, technology, MW and the dates that moved, for all 15 changes.

Members only
County: Honolulu County, HISince June 4, 2026 15 changes
ProjectChangeTechnologyMWPrevious dateNew date
15 changes behind this preview

Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.

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Every record in Honolulu County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 91 records. Filter, sort and export to Excel.

Members only
County: Honolulu County, HIStatus: all except cancelledSort: MW, largest first 91 records
Project or campusDeveloperStatusMWYearContacts
91 records and 2.6 GW behind this preview

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