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Jo Island

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

CoverageDetailed public record
Named organizations5
System facts14
Sources reviewed5
Evidence reviewed2026-07-20

This record is the proposed Jodo (조도) Energy-Independent Island project in Jodo-myeon, Jindo-gun, South Jeolla—not an operating project called simply 'Jo Island.' The LG CNS consortium's plan paired 294 kW of PV, two 750 kW wind turbines, an 8.12 MWh ESS with 4.25 MW PCS, and the existing 3.6 MW oil-fired internal-combustion plant. It targeted 45% renewable supply. Evidence from 2018 and a 2022 Korea Energy Economics Institute study shows that Jodo and the other five-island private-investment projects did not reach a PPA/SPC implementation stage; the planned renewable assets should not be counted as installed.

Research status
Stalled/unbuilt proposal. LG CNS still described Jodo as a selected track record in its 2016-2018 sustainability materials, but the 2022 academic review found that none of the five follow-on islands had signed a PPA and a December 2018 Korean report said the same five had failed to establish project companies or show implementation progress after tariff-policy changes destroyed the expected economics. No later authoritative evidence of construction or commissioning at Jodo was located.
Historical classification
Island
Reported capacity
See component specifications
Coordinates
34.25282, 126.15560
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 Jo Island?

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

Organization

Jindo-gun / Jodo community

Proposed host jurisdiction and population/load served by the existing island system. [2]

Organization

Korea Electric Power Corporation (KEPCO)

Incumbent island electricity supplier and intended 20-year power purchaser; Jodo remained served by its existing internal-combustion plant. [2]

Organization

LG CNS

Publicly named participant; role not specified in the recovered record [1]

Organization

LG CNS consortium

Selected private consortium/project organizer for the proposed Jodo and Geomundo energy-independent island projects; intended microgrid/EPC and control-system provider. [3][2]

Organization

Ministry of Trade, Industry and Energy (MOTIE)

National program sponsor and rulemaker for the private-investment Energy-Independent Island initiative. [2][4]

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
294 kW; proposed, not verified as installed [2]
Planned wind
1.5 MW total from two 750 kW turbines; proposed, not verified as installed [2]
Planned energy storage
8.12 MWh ESS with 4.25 MW power-conversion system; chemistry, supplier, and duration were not specified in the reviewed plan [2]
Existing generation
3.6 MW internal-combustion plant: two 500 kW units and one 2.6 MW unit [2]
Target renewable share
45% of island electricity demand [2]
2015 island electricity baseline
8,300 MWh generation, approximately $399/MWh generating cost, population 2,351 in 905 households, and 35.7 km² area [2]
Indicative investment
$43 million in the 2016 plan table [2]

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

Proposed renewable generators

Model not publicly disclosed

Two 750 kW wind turbines and 294 kW of PV were specified only at aggregate level; no manufacturer or model is identified, consistent with a proposal that had not reached procurement. [2]

02

Proposed storage and controls

Model not publicly disclosed

The plan specified 8.12 MWh of ESS and 4.25 MW PCS and assigned the project to LG CNS, whose offering included an energy management/microgrid control system. No evidence shows this equipment was ordered or installed at Jodo. [2][3]

03

Existing thermal station

Model not publicly disclosed

Three oil-fired internal-combustion units totaling 3.6 MW remained the documented supply base; engine manufacturers and fuel subtype are not disclosed in the reviewed sources. [2]

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 model

    Private operators were expected to finance renewables, ESS, and EMS, then recover investment through a 20-year electricity sale to KEPCO. The project was therefore contingent on a bankable PPA rather than a normal government-funded demonstration procurement. [2]

  • Why it stalled

    Falling oil prices and a 2016 change from a fixed island renewable price to compensation linked to diesel operating cost substantially reduced expected revenue. The five selected follow-on islands, including Jodo, consequently failed to establish SPCs or conclude PPAs. [2][4]

  • Identity correction

    Use Jodo, Jodo-myeon, Jindo-gun, Jeollanam-do as the project identity. There are multiple Korean islands named Jodo; this proposal is not the much smaller Jodo near Namhae and not the Jo Island spelling used in the recovered record. [2]

  • Data treatment

    All renewable and storage figures are planned capacity. Only the 3.6 MW conventional plant and 2015 generation baseline are documented as existing; representing 1.794 MW of renewables or 8.12 MWh as operational would materially overstate deployment. [2][4]

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]
    A case study on the implementation environment of Korea's energy-independent island projects

    Korea Energy Economics Institute / International Journal of Smart Grid and Clean Energy · Primary source

  3. [3]
  4. [4]
  5. [5]
    Innovative Business: Energy self-sufficient island of Korea

    KPMG Samjong / Asia Clean Energy Forum · Primary source

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