Technical Assistance for an Integrated Renewable Energy, Green Hydrogen and Blue Economy System for Climate-Resilient Fishing Communities in Karimunjawa, Indonesia

Eligibility Criteria

E1

The request has a clear and positive benefit to the requesting country in mitigating, or adapting to the negative effect of, climate change.
Yes
The request has components of mitigation and adaptation benefits to Indonesia. Developing a technically feasible, safe, economically viable and community-based integrated renewable energy and green hydrogen model for Karimunjawa that utilizes excess solar electricity to strengthen energy security, reduce diesel consumption, support sustainable fisheries, improve clean-water access and enhance climate resilience of fishing communities. Such integration could reduce fossil fuel consumption and associated greenhouse gas emissions while simultaneously improving energy security, water security, fish preservation, productive economic activities and climate resilience of the local community.

E2

The request is in line with national strategies and plans.
Yes
The request is aligned with 1) Second Nationally Determined Contribution (October 2025) of Republic of Indonesia (pages 2–3, 15, 32), 2) Indonesia Technology Needs Assessment (TNA) for Climate Change Mitigation and Technology Action Plan
(2012, page 270), 3) Indonesia Long-Term Strategy for Low Carbon and Climate Resilience 2050 (2021, pages 5, 56–57), 4) RUPTL 2025–2034, PT PLN (Persero) (2025), and 5) Indonesia Blue Economy Roadmap, 2nd Edition (BAPPENAS, 2024, page 87).

E3

The request enhances endogenous capacities.
Yes
Key stakeholders considered in developing the request include BRIN as the technical/R&D lead; PLN as the owner/operator of the existing PV-BESS energy infrastructure; relevant national and local government institutions for policy and community coordination; local fishing communities as the end users and beneficiaries; and potential research and technology partners from Korea and ASEAN/regional institutions. The most important finding from the baseline review is that the annual electricity consumption and installed generation capacity are known, but the time-series operational data needed for optimal system integration are not yet available. For decision-making, data will be classified as verified, operator-confirmed, secondary-source, estimated or a data gap. The 182 kWp PV figure refers to Parang, Genting and Nyamuk only and must not be attributed to the main Karimunjawa Island system. Seasonal representativeness and uncertainty will be reported in the energy model. So, through the implementation of TA request, there will be big enhancement of capacities of Indonesia stakeholders including BRIN, PLN and local communities.

E4

Processes are placed in the requesting country to monitor and evaluate any support provided.
Yes
The NDE ensures to work with the CTCN to monitor the support provided by indicating this in the Request as follows: The monitoring framework will distinguish deliverables, technical outcomes and impacts. Initial indicators are: (i) baseline-data completeness, measured as the proportion of required parameters verified or documented as gaps; (ii) available surplus electricity, in kWh by time interval and season; (iii) recommended electrolyzer capacity, utilization and estimated hydrogen output; (iv) diesel displaced, in L/year; (v) net greenhouse-gas emissions avoided, in tCO₂e/year; (vi) CAPEX, OPEX, energy cost and cost of hydrogen where applicable; (vii) service continuity using an agreed reliability metric; (viii) fisheries post-harvest loss rate; (ix) clean-water volume, availability and relevant quality compliance; and (x) training participation and competency assessment. Each indicator will include a baseline, unit, data source, verification method and target or acceptance criterion.
Prioritisation Criteria

P1

The request is aligned to the CTCN’s existing Programme of Work.
Yes
The request is strongly aligned with five system transformation areas such as water-energy-food nexus, energy systems, and business and industry and with one of the two enablers, national systems of innovation.

P2

The request is aligned to the key themes of the Technology Framework of the Paris Agreement.
Yes
The request is strongly aligned with all five key themes of Technology Framework of the Paris Agreement such as innovation, implementation, Enabling Environment and Capacity-Building, Collaboration and Stakeholder Engagement and Support.

P3

The request is submitted by LDCs or SIDS or by a country that has not received CTCN technical assistance in the last 5 years, taking into account regional balance.
No
Indonesia is neither a Least Developed Country (LDC) nor a Small Island Developing State (SIDS).
Furthermore, Indonesia has received CTCN technical assistance within the last five years, including the completed project "Identification of technical practices for climate-smart agriculture (CSA) in Indonesia", completed in 2024.

P4

The request contributes to the CTCN’s portfolio balance between mitigation and adaptation.
Yes
The request combines climate change adaptation and mitigation objectives, with potential to contribute to CTCN's portfolio across both climate objectives. Developing a technically feasible, safe, economically viable and community-based integrated renewable energy and green hydrogen model for Karimunjawa that utilizes excess solar electricity to strengthen energy security, reduce diesel consumption, support sustainable fisheries, improve clean-water access and enhance climate resilience of fishing communities. Such integration could reduce fossil fuel consumption and associated greenhouse gas emissions while simultaneously improving energy security, water security, fish preservation, productive economic activities and climate resilience of the local community.

P5

The request has the potential to contribute to systems transformations (nationally, regionally, and/or internationally).
Yes
The proposed technical assistance will establish a time-series integrated energy model to quantify actual excess renewable electricity and determine the optimal electrolyzer capacity and operating strategy. The existing diesel generator will be assessed as a hydrogen-utilization pathway through Diesel Dual Fuel (DDF), rather than as a renewable-energy source. The assessment will also integrate productive electricity applications, including cold storage, ice production, fish processing and desalination. This baseline-to-assessment approach will provide the technical basis for a safe, economically viable and replicable PV-BESS–Green Hydrogen–DDF system for small-island communities.
The primary demonstration area is the main island of Karimunjawa, where the PLN-operated PLTD Legon Bajak (2 × 2.2 MW) provides the main dispatchable electricity supply. The technical assistance will focus on the integration of the existing PV-BESS system, excess renewable electricity, green hydrogen production, and hydrogen utilization through Diesel Dual Fuel (DDF) with the existing electricity infrastructure. The broader Karimunjawa island group will also be considered as a potential replication area, particularly Parang, Genting, and Nyamuk Islands, where PLN operates renewable-energy-based electricity systems.

P6

The request is part of multi-country approach to allow regional bundling of requests to promote collaboration among stakeholders, including between countries (South-South, bilateral, or multilateral cooperation).
Yes
The request proposes international collaboration through technical and R&D partnerships with institutions in Korea such as Korea Institute of Science and Technology (KIST), KRICT (Korea Research Institute of Chemical Research), and KIER (Korea Institute of Energy Research) who hosted 2026 CTCN learning visit on green hydrogen and fuel cell and ASEAN/regional partners.

P7

The request, developed in consultation with or with the engagement of various national climate-related focal points, enables leveraging public and/or private financing or is developed in consultation with research or private sector.
Yes
The request was initiated through a technical development process led by the Request Applicant, Research Center for Energy Conversion Technology - BRIN, in collaboration with relevant national stakeholders to identify a practical climate-technology intervention for fishing communities in Karimunjawa. The initial concept emerged from the need to improve renewable-energy utilization, reduce dependence on diesel fuel, strengthen energy and water resilience, and support productive fisheries activities through an integrated PV-BESS, green hydrogen, DDF, cold-chain and desalination system.
During the development process, the concept was progressively refined from a technology-deployment approach into an applied R&D and technical-assistance request, consistent with the CTCN mandate and its focus on technology assessment, system integration, capacity building and preparation for subsequent implementation. The technical discussions specifically examined the existing PLN PV-BESS context, excess renewable electricity utilization, electrolyzer technology options (PEMEL, AEM and SOEC), hydrogen storage, DDF integration with the existing diesel generator, cold storage and ice
production, fish processing, desalination, and local capacity requirements.
Key stakeholders considered in developing the request include BRIN as the technical/R&D lead; PLN as the owner/operator of the existing PV-BESS energy infrastructure; relevant national and local government institutions for policy and community coordination; local fishing communities as the end users and beneficiaries; and potential research and technology partners from Korea and ASEAN/regional institutions. Their respective inputs were used to ensure that the proposed assistance addresses technical feasibility, community needs, institutional requirements and future replication.
The request was subsequently discussed and refined through stakeholder consultations and technical exchanges, with particular attention to defining the technology barriers, scope of technical assistance, expected outputs and potential follow-up financing. The final submission will be formally endorsed and signed by the Indonesian NDE, in accordance with the CTCN request process.

P8

The request promotes gender equality and / or the empowerment of youth, Indigenous Peoples, or local communities.
Yes
The technical assistance will adopt an inclusive community-based approach with targeted participation of women, youth and fishing households. Women will be actively involved particularly in fish processing, product development, entrepreneurship, cooperative management and financial literacy activities, while youth participation will be promoted in renewable energy, digital monitoring, hydrogen technology and technical operation and maintenance.
Expected co-benefits include reduced diesel consumption and emissions, improved fish preservation, reduced post-harvest losses, increased value addition of fisheries products, new local business opportunities, improved access to clean water, enhanced technical skills, youth employment opportunities and strengthened community resilience.
Eligibility score
4/4
Prioritisation score
7/8
Appraisal recommendation
Eligible and prioritised