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Hawaii County, Hawaii

Hawaii County, Hawaii has 52 power projects in the FieldProspects database: 48 operating plants totaling 492.2 MW and 4 planned projects totaling 215.5 MW. No data center record lists the county. Oil leads with 259.8 MW across 22 projects. No planned project is past its listed in-service date.

Data as of Grid region: Hawaiian ElectricRefreshed monthly
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52
power projects, planned and operating
215.5MW
planned generation, 4 projects
492.2MW
operating generation, 48 projects
0
planned projects past their listed in-service date
Map

Hawaii County and its neighbors

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

Hawaii 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
44%

of the county's operating generation is in the queue as new capacity: 215.5 MW planned across 4 projects against 492.2 MW operating.

Operating generation492.2 MW
Planned generation215.5 MW

Technology mix

52 projects, 707.7 MW planned and operating

Oil259.8 MW22 projects, 37%
Solar160.8 MW4 projects, 23%
Battery Storage154 MW5 projects, 22%
4 other technologies133.1 MW21 projects, 19%
Which companies own these 52 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

48 plants operate inside Hawaii County, 492.2 MW. The queue adds 215.5 MW across 4 projects.

Figure 1

Operating and planned generation by technology

MW in Hawaii County

OperatingPlanned
OilOperating 259.8 MW 22 projects
SolarOperating 74.8 MW 3 projects
SolarPlanned 86 MW 1 project
Battery StorageOperating 60.5 MW 3 projects
Battery StoragePlanned 93.5 MW 2 projects
GeothermalOperating 51 MW 12 projects
BiomassPlanned 36 MW 1 project
WindOperating 31.6 MW 2 projects
HydroOperating 14.5 MW 6 projects
View as table
TechnologyStatusProjectsMW
OilOperating22259.8
SolarOperating374.8
SolarPlanned186
Battery StorageOperating360.5
Battery StoragePlanned293.5
GeothermalOperating1251
BiomassPlanned136
WindOperating231.6
HydroOperating614.5
Operating: 492.2 MW. Planned: 215.5 MW. If every planned project is built, county generation would reach 707.7 MW.
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
050100150200 36 2027 2028 2029 180 2030
View as table
YearPlanned projectsMW
2027136
202800
202900
20303179.5
No planned project is past its listed year

Every record in Hawaii County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 52 records. Filter, sort and export to Excel.

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County: Hawaii County, HIStatus: all except cancelledSort: MW, largest first 52 records
Project or campusDeveloperStatusMWYearContacts
52 records and 707.7 MW behind this preview

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