> ## Documentation Index
> Fetch the complete documentation index at: https://docs.transitionzero.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Southeast Asia: ASEAN Power Grid (APG)

> This section provides specific details about Scenario Builder's model of ASEAN Power Grid, a multi-country model connecting the electricity systems of all ten ASEAN member states — Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam — covering generation, dispatch, and cross-border trade flows.

# Changelog

<Update label="v1.6.2" description="20 Apr 2026">
  Support for APG capacity expansion and dispatch scenarios
</Update>

# Model scope

## Capacity Expansion

* Base year: 2023
* End year: 2050
* Spatial resolution:
  * National (10-node)
  * Regional (25-nodes):
    * Java (GRIDREGION-IDN-JW)
    * Kalimantan (GRIDREGION-IDN-KA)
    * Maluku (GRIDREGION-IDN-ML)
    * Nusa Tenggara (GRIDREGION-IDN-NU)
    * Papua (GRIDREGION-IDN-PP)
    * Sulawesi (GRIDREGION-IDN-SL)
    * Sumatra (GRIDREGION-IDN-SM)
    * Peninsular (GRIDREGION-MYS-PE)
    * Sabah (GRIDREGION-MYS-SH)
    * Sarawak (GRIDREGION-MYS-SK)
    * Luzon (GRIDREGION-PHL-LU)
    * Mindanao (GRIDREGION-PHL-MI)
    * Visayas (GRIDREGION-PHL-VI)
    * Singapore (GRIDREGION-SGP-BT)
    * Batam Solar (GRIDREGION-SGP-ML)
    * Central Thailand (GRIDREGION-THA-CE)
    * Northern Thailand (GRIDREGION-THA-NO)
    * Southern Thailand (GRIDREGION-THA-SO)
    * Central Vietnam (GRIDREGION-VNM-CE)
    * Northern Vietnam (GRIDREGION-VNM-NO)
    * Southern Vietnam (GRIDREGION-VNM-SO)
    * Laos (LAO)
    * Brunei (BRN)
    * Cambodia (KHM)
    * Myanmar (MMR)
* Temporal resolution:
  * Low resolution (24-hourly and yearly) - 1 Timeslice
  * Medium resolution (3-hourly and 3-monthly) - 32 Timeslices

## Dispatch

* Spatial resolution:
  * National (10-node)
  * Regional (25-nodes):
    * Java (GRIDREGION-IDN-JW)
    * Kalimantan (GRIDREGION-IDN-KA)
    * Maluku (GRIDREGION-IDN-ML)
    * Nusa Tenggara (GRIDREGION-IDN-NU)
    * Papua (GRIDREGION-IDN-PP)
    * Sulawesi (GRIDREGION-IDN-SL)
    * Sumatra (GRIDREGION-IDN-SM)
    * Peninsular (GRIDREGION-MYS-PE)
    * Sabah (GRIDREGION-MYS-SH)
    * Sarawak (GRIDREGION-MYS-SK)
    * Luzon (GRIDREGION-PHL-LU)
    * Mindanao (GRIDREGION-PHL-MI)
    * Visayas (GRIDREGION-PHL-VI)
    * Singapore (GRIDREGION-SGP-BT)
    * Batam Solar (GRIDREGION-SGP-ML)
    * Central Thailand (GRIDREGION-THA-CE)
    * Northern Thailand (GRIDREGION-THA-NO)
    * Southern Thailand (GRIDREGION-THA-SO)
    * Central Vietnam (GRIDREGION-VNM-CE)
    * Northern Vietnam (GRIDREGION-VNM-NO)
    * Southern Vietnam (GRIDREGION-VNM-SO)
    * Laos (LAO)
    * Brunei (BRN)
    * Cambodia (KHM)
    * Myanmar (MMR)
* Temporal resolution:
  * High resolution (hourly and single year) - 8760 timesteps
  * Available for single years between 2023-2050

# Data sourcing table

| Input variable                                                                | Data source                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Data standard |
| :---------------------------------------------------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------ |
| Demand profiles - current                                                     | 2023 load profile of [<u>NEMS</u>](http://nems.emcsg.com/nems-prices) for Singapore, 2023 load profile of [<u>GSO</u>](https://www.gso.org.my/SystemData/SystemDemand.aspx/) for Malaysia, 2023 load profile of [<u>IEMOP</u>](https://www.iemop.ph/) for The Philippines, 2023 load profile of [<u>NSMO</u>](https://www.nsmo.vn/) for Vietnam, and 2015 load profile from [<u>TransitionZero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) for the rest                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Silver        |
| Demand profiles - future                                                      | Same profile assumed for all future years                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Bronze        |
| Annual demand - current                                                       | [<u>NEMS</u>](http://nems.emcsg.com/nems-prices), Tenaga Nasional Berhad, [<u>Sarawak Energy Berhad</u>](https://www.sarawakenergy.com/investors/annual-and-sustainability-reports/annual-reports), [<u>Malaysia Energy Commission</u>](https://myenergystats.st.gov.my/dashboard), [<u>IEMOP</u>](https://www.iemop.ph/), Electricity of Vietnam (EVN), [<u>EDL Statistic Yearbook 2023</u>](https://edl.com.la/statistic#), [<u>Electricity Authority of Cambodia's Annual Reports on Power Sector</u>](https://eac.gov.kh/site/annualreport?lang=en), [<u>Brunei Darussalum Department of Planning and Statistics</u>](https://deps.mofe.gov.bn/DEPD%20Documents%20Library/DOS/BDSYB/BDSYB.pdf), [<u>Energy Policy and Planning Office (EPPO)</u>](https://www.eppo.go.th/index.php/en/en-energystatistics/electricity-statistic), [<u>Provincial Electricity Authority (PEA)</u>](https://www.pea.co.th/en/about-pea/annual-report), CASE Indonesia, [RUPTL 2025-2034](https://gatrik.esdm.go.id/assets/uploads/download_index/files/b967d-ruptl-pln-2025-2034-pub-.pdf), [<u>TransitionZero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver        |
| Annual demand - future                                                        | [<u>Philippines Power Development Plan</u>](https://legacy.doe.gov.ph/sites/default/files/pdf/electric_power/development_plans/Power%20Development%20Plan%202023-2050.pdf), CASE Indonesia, [RUPTL 2025-2034](https://gatrik.esdm.go.id/assets/uploads/download_index/files/b967d-ruptl-pln-2025-2034-pub-.pdf), [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Bronze        |
| Solar profile - current                                                       | [<u>NEMS</u>](http://nems.emcsg.com/nems-prices), [<u>GSO</u>](https://www.gso.org.my/SystemData/SystemDemand.aspx/), [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Silver        |
| Solar profile - future                                                        | Shape of the renewable profiles does not change in the future.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Bronze        |
| Hydropower profile - current                                                  | [<u>GSO</u>](https://www.gso.org.my/SystemData/SystemDemand.aspx/), [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Silver        |
| Hydropower profile - future                                                   | Shape of the renewable profiles does not change in the future.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Bronze        |
| Other renewable profiles - current                                            | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Bronze        |
| Other renewable profiles - future                                             | Shape of the renewable profiles does not change in the future.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Bronze        |
| Renewable potentials                                                          | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Bronze        |
| Technology costs - current                                                    | [<u>Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource</u>](https://gatrik.esdm.go.id/assets/uploads/download_index/files/c4d42-technology-data-for-the-indonesian-power-sector-2024-annoteret-af-kb-.pdf), [<u>VietNam Technology Catalogue by Danish Energy Agency</u>](https://ens.dk/en/global-coorporation/energy-partnerships/vietnam), [<u>BNEF Malaysia Technology Cost</u>](https://assets.bbhub.io/professional/sites/24/Malaysia-A-Techno-Economic-Analysis-of-Power-Generation.pdf), and [<u>The 8th ASEAN Energy Outlook by ASEAN Center of Energy</u>](https://aseanenergy.org/wp-content/uploads/2024/09/8th-ASEAN-Energy-Outlook.pdf)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Silver        |
| Technology costs - future                                                     | [<u>Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource</u>](https://gatrik.esdm.go.id/assets/uploads/download_index/files/c4d42-technology-data-for-the-indonesian-power-sector-2024-annoteret-af-kb-.pdf), [<u>VietNam Technology Catalogue by Danish Energy Agency</u>](https://ens.dk/en/global-coorporation/energy-partnerships/vietnam), [<u>BNEF Malaysia Technology Cost</u>](https://assets.bbhub.io/professional/sites/24/Malaysia-A-Techno-Economic-Analysis-of-Power-Generation.pdf), and [<u>The 8th ASEAN Energy Outlook by ASEAN Center of Energy</u>](https://aseanenergy.org/wp-content/uploads/2024/09/8th-ASEAN-Energy-Outlook.pdf)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Silver        |
| Interconnector lists                                                          | [<u>Transition Zero APG study 2024 version Scenario 4</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Silver        |
| Interconnector capacity data - current                                        | [<u>Global Transmission Database</u>](https://zenodo.org/records/10870602)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Silver        |
| Interconnector capacity data - future                                         | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Silver        |
| Interconnector technology costs - current                                     | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Bronze        |
| Interconnector technology costs - future                                      | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Bronze        |
| Commodity costs - current                                                     | Tenaga Nasional Berhad, Sarawak Energy Berhah, [<u>BNEF Malaysia Technology Cost</u>](https://assets.bbhub.io/professional/sites/24/Malaysia-A-Techno-Economic-Analysis-of-Power-Generation.pdf) and [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Silver        |
| Commodity costs - future                                                      | [<u>Transition Zero in-house methodology</u>](https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg), [<u>BNEF Malaysia Technology Cost</u>](https://assets.bbhub.io/professional/sites/24/Malaysia-A-Techno-Economic-Analysis-of-Power-Generation.pdf)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | Silver        |
| Efficiency / Losses                                                           | [<u>Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource</u>](https://gatrik.esdm.go.id/assets/uploads/download_index/files/c4d42-technology-data-for-the-indonesian-power-sector-2024-annoteret-af-kb-.pdf), [<u>VietNam Technology Catalogue by Danish Energy Agency</u>](https://ens.dk/en/global-coorporation/energy-partnerships/vietnam), [<u>BNEF Malaysia Technology Cost</u>](https://assets.bbhub.io/professional/sites/24/Malaysia-A-Techno-Economic-Analysis-of-Power-Generation.pdf), and [<u>The 8th ASEAN Energy Outlook by ASEAN Center of Energy</u>](https://aseanenergy.org/wp-content/uploads/2024/09/8th-ASEAN-Energy-Outlook.pdf)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Silver        |
| Minimum generation level                                                      | Technology specific, calibrated based on historical generation levels, then linearly reduced to zero by 2035                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | Bronze        |
| Planned outages / Availability                                                | Technology specific, calibrated based on historical generation, and [NREL ATB 2024](https://atb.nrel.gov/electricity/2024/index)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | Bronze        |
| Discount rate                                                                 | Default (5%)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | Bronze        |
| Reserve margin                                                                | Default (20%)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Bronze        |
| WACC                                                                          | IEA Cost of Capital Observatory                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Bronze        |
| Power plant data (location, capacity, fuel, technology, start year, end year) | Compilation of the individual country power plant datasets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Gold          |
