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Asia / Island & remote community

Geomun Island

Current status, energy mix, organizations, suppliers, equipment, controls, reported specifications, and project updates—with source-level citations.

CoverageDetailed public record
Named organizations4
System facts13
Sources reviewed9
Evidence reviewed2026-07-20

The recovered Geomun Island record should resolve to Geomundo (거문도, Port Hamilton) in Samsan-myeon, Yeosu, South Jeolla—not Geomunoreum on Jeju, where the recovered coordinates appear to point. Geomundo was selected in Korea's 2015 private 'energy-independent island' program for an LG CNS-led proposal combining 1.2 MW solar and 1.5 MW wind with the island's existing 4.5 MW diesel plant. Program reviews show the private-island initiative stalled on weak economics, and no credible construction or commissioning evidence for Geomundo was located through July 2026.

Research status
Stalled/unbuilt proposal based on the evidence reviewed. LG CNS described Geomundo among selected stand-alone microgrid opportunities in 2016-2017, but a 2016 policy table still showed no project operator for the island and a 2018 program retrospective said the selected private energy-island projects had stalled because low oil prices and poor economics undermined feasibility. No construction award, financial close, installed solar/wind/storage, commissioning, or operational update was found through 2026. A separate 440-500 MW offshore-wind development carrying the Geomundo name is unrelated and is excluded.
Historical classification
Island
Reported capacity
See component specifications
Coordinates
33.45827, 126.71332
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 Geomun Island?

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

Organization

Korea Electric Power Corporation

Utility counterpart for the existing island supply and the national program framework; reviewed sources do not establish KEPCO as builder of the proposed Geomundo project. [7][2]

Organization

LG CNS

Consortium lead associated with the planned Geomundo stand-alone microgrid and provider of proprietary microgrid EMS and turnkey engineering/financing capabilities. Its sustainability report records selection/business development, not completed construction. [4][7][3]

Organization

Ministry of Trade, Industry and Energy, Republic of Korea

National sponsor of the 2015 private energy-independent-island initiative that selected Geomundo among candidate sites. [3][6]

Organization

Yeosu City / Samsan-myeon

Local jurisdiction and correct geographic identity for Geomundo (Port Hamilton), designated Korea's Island of the Year for 2026. [8]

System evidence

Energy mix, capacity, and specifications

Values can describe different project phases, generation sources, storage systems, or other components. Source citations are attached to each figure so discrepancies remain visible.

Planned solar PV
1.2 MW in a 2016 policy-research table; no evidence reviewed establishes that it was procured or installed [2]
Planned wind generation
1.5 MW in the same proposal-stage table; turbine count, manufacturer, and model were not disclosed [2]
Existing island generation at proposal stage
4.5 MW of internal-combustion/diesel generation serving approximately 2,000 residents; this is baseline island supply, not renewable project capacity [2][7]
Planned investment
KRW 64.75 billion in the 2016 program comparison; the table simultaneously showed no confirmed business operator, underscoring proposal status [2]
Storage
Energy storage was part of the national energy-independent-island concept, but no reliable Geomundo-specific battery power, energy capacity, chemistry, vendor, or model was located. No storage value is assigned. [4][3]

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

Planned microgrid energy-management system

LG CNS

LG CNS promoted a proprietary microgrid EMS and end-to-end engineering, procurement, financing, and operating model in connection with its island projects. Public evidence does not establish delivery of that system on Geomundo. [4]

02

Planned renewable plant

Model not publicly disclosed

The public planning record gives aggregate 1.2 MW solar and 1.5 MW wind targets but no panel, inverter, turbine, switchgear, or storage manufacturers and models. Assigning equipment to the island would be speculative. [2]

03

Existing diesel/internal-combustion plant

Model not publicly disclosed

The pre-project island supply was reported as 4.5 MW. The reviewed sources do not provide generator count, individual ratings, manufacturer, fuel-consumption history, or later replacement status. [2][7]

Technical record

Architecture, performance, and project updates

Concise technical facts, milestones, operating results, and later developments. Dated notes distinguish historical design claims from current evidence.

  • Program context

    Geomundo was one of several islands selected around 2015 for private-sector energy-independent projects intended to combine renewables, storage, diesel integration, and energy management. LG CNS was associated with Jodo and Geomundo, but project selection was not equivalent to construction authorization or financial close. [4][3][7]

  • Development outcome

    A 2016 table already listed no business operator for Geomundo despite the announced consortium association. By December 2018, reporting on the overall private-island program said projects had stalled and their future was uncertain because avoided-diesel economics deteriorated as oil prices fell. [2][6][5]

  • Location correction

    The relevant project site is Geomundo/Port Hamilton in Samsan-myeon, Yeosu, South Jeolla. The recovered record's coordinates appear to correspond instead to Geomunoreum, a volcanic site on Jeju; future data cleanup should correct the project coordinates rather than interpreting this as a Jeju microgrid. [8][4][7]

  • Unrelated offshore wind

    A separate Geomundo-named offshore-wind project appears in current Korean power-market planning at approximately 440-500 MW with a 2031 target. It is geographically associated with the area but is not the 2015 island microgrid proposal and its capacity is excluded from this record. [9]

  • Evidence boundary

    No source reviewed through July 2026 documents site construction, commissioned renewable or storage capacity, energy production, fuel savings, customers served, outage performance, or an explicit cancellation order. 'Stalled/unbuilt proposal' is more supportable than either 'operational' or a definitive legal cancellation. [2][6][4]

Provenance

9 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]
  3. [3]
    South Korea's Energy Policy Change and the Saemangeum Renewable Energy Project

    The Asia-Pacific Journal: Japan Focus · Secondary research

  4. [4]
  5. [5]
  6. [6]
  7. [7]
    A study on stand-alone microgrid projects in Korean islands

    International Journal of Smart Grid and Clean Energy · Secondary research

  8. [8]
    Geomundo selected as Korea's Island of the Year 2026

    Ministry of Oceans and Fisheries, Republic of Korea · Primary source

  9. [9]

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