Where is Mauna Loa Macadamia Nut?

In Hawaii County, Hawaii (HI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Mauna Loa Macadamia Nut?

1 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Mauna Loa Macadamia Nut?

EIA-860M names Macadamia Nut Road Solar Project 2019 as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Mauna Loa Macadamia Nut LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Macadamia Nut Road Solar Project 2019 here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Mauna Loa Macadamia Nut LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Mauna Loa Macadamia Nut still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Mauna Loa Macadamia Nut

Mauna Loa Macadamia Nut is a 1 MW solar farm in Hawaii County, Hawaii, operated by Macadamia Nut Road Solar Project 2019. EIA-860M lists 2 generating units here. Its units entered service in 2021.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 1.3 MW; 1.3 MW net summer
Generating units: 2
In service: 2021
EIA plant ID: 68605

Where it is

Loading map…

County: Hawaii County, Hawaii
Coordinates: 19.6569, -155.0087
Balancing authority: HECO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Macadamia Nut Road Solar Project 2019
Primary energy source: Solar
Technologies: Batteries, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Solar 1 MW, Battery 1 MW. It is filed here under Solar, the source with the most capacity.

Every plant Macadamia Nut Road Solar Project 2019 reports to EIA →

Mauna Loa Macadamia Nut: FAQ

Where is Mauna Loa Macadamia Nut?: In Hawaii County, Hawaii (HI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Mauna Loa Macadamia Nut?: 1 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Mauna Loa Macadamia Nut?: EIA-860M names Macadamia Nut Road Solar Project 2019 as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Mauna Loa Macadamia Nut LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Macadamia Nut Road Solar Project 2019 here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Mauna Loa Macadamia Nut LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Mauna Loa Macadamia Nut still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.