Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/61987
EIA plant 61987
Ewa Beach · Honolulu · HI
West Loch Solar One
Operated by Hawaiian Electric Co Inc
Published location
Where is West Loch Solar One?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
21.340339, -158.015084
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the HI plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
12,677
22,685
33,505
43,084
53,237
63,764
73,556
82,072
93,063
103,226
112,955
122,640
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 2,677 |
| 2 | 2,685 |
| 3 | 3,505 |
| 4 | 3,084 |
| 5 | 3,237 |
| 6 | 3,764 |
| 7 | 3,556 |
| 8 | 2,072 |
| 9 | 3,063 |
| 10 | 3,226 |
| 11 | 2,955 |
| 12 | 2,640 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 2,677 MWh |
| 2 | 2,685 MWh |
| 3 | 3,505 MWh |
| 4 | 3,084 MWh |
| 5 | 3,237 MWh |
| 6 | 3,764 MWh |
| 7 | 3,556 MWh |
| 8 | 2,072 MWh |
| 9 | 3,063 MWh |
| 10 | 3,226 MWh |
| 11 | 2,955 MWh |
| 12 | 2,640 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| WLS1 | Solar Photovoltaic | SUN | 20 | OP |
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Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
61987
Sector
Electric Utility
Water source
Unavailable
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right West Loch Solar One power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at West Loch Solar One
Variation in the published months
Across 12 numeric monthly generation entries, 6 has the highest recorded value (3,764 MWh) and 8 the lowest (2,072 MWh). Their difference is 1,692 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| WLS1 | Solar Photovoltaic | 20.0 | 20.0 | 20.0 | Not supplied |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.