Changelog

20 Apr 2026

Support for APG capacity expansion and dispatch scenarios

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 NEMS for Singapore, 2023 load profile of GSO for Malaysia, 2023 load profile of IEMOP for The Philippines, 2023 load profile of NSMO for Vietnam, and 2015 load profile from TransitionZero in-house methodology for the rest	Silver
Demand profiles - future	Same profile assumed for all future years	Bronze
Annual demand - current	NEMS, Tenaga Nasional Berhad, Sarawak Energy Berhad, Malaysia Energy Commission, IEMOP, Electricity of Vietnam (EVN), EDL Statistic Yearbook 2023, Electricity Authority of Cambodia’s Annual Reports on Power Sector, Brunei Darussalum Department of Planning and Statistics, Energy Policy and Planning Office (EPPO), Provincial Electricity Authority (PEA), CASE Indonesia, RUPTL 2025-2034, TransitionZero in-house methodology	Silver
Annual demand - future	Philippines Power Development Plan, CASE Indonesia, RUPTL 2025-2034, Transition Zero in-house methodology	Bronze
Solar profile - current	NEMS, GSO, Transition Zero in-house methodology	Silver
Solar profile - future	Shape of the renewable profiles does not change in the future.	Bronze
Hydropower profile - current	GSO, Transition Zero in-house methodology	Silver
Hydropower profile - future	Shape of the renewable profiles does not change in the future.	Bronze
Other renewable profiles - current	Transition Zero in-house methodology	Bronze
Other renewable profiles - future	Shape of the renewable profiles does not change in the future.	Bronze
Renewable potentials	Transition Zero in-house methodology	Bronze
Technology costs - current	Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource, VietNam Technology Catalogue by Danish Energy Agency, BNEF Malaysia Technology Cost, and The 8th ASEAN Energy Outlook by ASEAN Center of Energy	Silver
Technology costs - future	Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource, VietNam Technology Catalogue by Danish Energy Agency, BNEF Malaysia Technology Cost, and The 8th ASEAN Energy Outlook by ASEAN Center of Energy	Silver
Interconnector lists	Transition Zero APG study 2024 version Scenario 4	Silver
Interconnector capacity data - current	Global Transmission Database	Silver
Interconnector capacity data - future	Transition Zero in-house methodology	Silver
Interconnector technology costs - current	Transition Zero in-house methodology	Bronze
Interconnector technology costs - future	Transition Zero in-house methodology	Bronze
Commodity costs - current	Tenaga Nasional Berhad, Sarawak Energy Berhah, BNEF Malaysia Technology Cost and Transition Zero in-house methodology	Silver
Commodity costs - future	Transition Zero in-house methodology, BNEF Malaysia Technology Cost	Silver
Efficiency / Losses	Indonesia Technology Catalogue by Danish Energy Agency and The Ministry of Energy and Mineral Resource, VietNam Technology Catalogue by Danish Energy Agency, BNEF Malaysia Technology Cost, and The 8th ASEAN Energy Outlook by ASEAN Center of Energy	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	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

Platform

Methodology

Country Models

Feedback

Southeast Asia: ASEAN Power Grid (APG)

Changelog

Model scope

Capacity Expansion

Dispatch

Data sourcing table

​Changelog

​Model scope

​Capacity Expansion

​Dispatch

​Data sourcing table

Changelog

Model scope

Capacity Expansion

Dispatch

Data sourcing table