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Asia / Island & remote community

Mara-ro Island Microgrid

Organizations, planners, suppliers, equipment, controls, and reported system specifications—with source-level citations.

CoverageDetailed public record
Named organizations7
System facts9
Sources reviewed5
Last researched2026-07-19

Mara Island's Korean stand-alone microgrid combines PV, diesel generation, battery storage, and a power-management system. Public project and research records identify KEPCO, KIER, GE Energy, AstroKorea, and Kwangdong, while also documenting multiple system generations with differing storage ratings.

Research status
Historical operating island microgrid; present configuration not independently confirmed
Historical classification
Remote
Reported capacity
See component specifications
Coordinates
33.11563, 126.26782
Evidence note: “Every company” cannot be proven from public material alone. This page lists every organization found in the recovered record and reviewed sources, preserves unknown roles, and explicitly marks undisclosed controller or equipment details.
Report missing evidenceResearch methodology

Project delivery

Who was involved in Mara-ro Island Microgrid?

7 publicly identified organizations. Where a recovered source named a participant without explaining its work, the role remains explicitly unspecified.

Organization

AstroKorea

General contractor for the 150 kW PV installation [3]

Organization

GE Energy

Supplier of modules for the 150 kW PV expansion [3]

Organization

KEPCO Research Institute (KEPRI)

Microgrid EMS research and demonstration organization [5]

Organization

Korea Electric Power Corporation (KEPCO)

Utility and long-term island-PV project collaborator [2][5]

Organization

Korea Institute of Energy Research (KIER)

Research and system-development partner [2]

Organization

Kwangdong Electronic Co., Ltd.

Local solar installer [3]

Organization

Nam Jeju-gun County

Local-government customer for the 150 kW PV project [3]

System evidence

Reported capacity and specifications

Values can describe different project phases or components. Source citations are attached to each figure so discrepancies remain visible.

KW Solar
150 [1]
KW Gas/Diesel
150 [1]
Storage
100 KW BSS [1]
PV array
150 kW; 2,010 GE GEPV-75W modules in the 2005 expansion [3]
Published diesel configuration
Research model: 250 kW; later project material lists 120, 200, and 300 kW sets [4][5]
Published storage configuration
Research model: 50 kW / 600 kWh; later project material reports 1.2 MWh [4][5]
Published load
40 kW minimum, 80 kW average, 120 kW peak [4]

Controls and hardware

Equipment and controller details

Manufacturer and model are shown only when a source names them. Generic descriptions are not converted into guessed product assignments.

01

PV modules

GE Energy — GEPV-75W

2,010 modules totaling approximately 150 kW. [3]

02

Power management system

Model not publicly disclosed

Coordinates diesel minimum loading and battery dispatch using droop control; commercial EMS model not disclosed in the reviewed material. [4][5]

Provenance

5 sources

Primary owner, government, university, supplier, and engineering sources are preferred. Archived references preserve claims whose original pages moved or disappeared.

  1. [1]
    Recovered Microgrid Projects record

    Internet Archive · Archived source · captured 2020-07-06

  2. [2]
    Renewable Energy on Small Islands — Mara Island

    Forum for Energy and Development · Secondary research

  3. [3]
    GE solar modules used in large Korean solar project

    Renewable Energy World · Secondary research

  4. [4]
    A novel three-phase four-leg inverter based load unbalance compensator for stand-alone microgrid

    International Journal of Electrical Power & Energy Systems · Primary source

  5. [5]
    Microgrid EMS solution in Korea — Mara Island

    KEPCO Research Institute / Microgrid Symposium · Primary source

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