| Demand profiles - current | Shape of the demand at the national-level synthetically generated from a historical year (2015) | Silver |
| Demand profiles - future | Shape of the demand profile does not change in the future. | Bronze |
| Annual demand - current | Historical electricity system demand (Brunei Darussalum Department of Planning and Statistics: Statistical Yearbook 2024) | Gold |
| Annual demand - future | TransitionZero in-house estimates | Bronze |
| Renewable profiles - current | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver |
| Renewable profiles - future | Shape of the renewable profiles does not change in the future. | Bronze |
| Renewable potentials | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | 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 technology costs - current | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver |
| Interconnector technology costs - future | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver |
| Commodity costs - current | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver |
| Commodity costs - future | TransitionZero in-house methodology (https://www.transitionzero.org/insights/from-vision-to-voltage-with-tz-apg) | Silver |
| Electricity cross border trade cost - current | Marginal cost of neighboring countries exporting electricity to/from Brunei based on TZ APG study | Bronze |
| Electricity cross border trade cost - future | Marginal cost of neighboring countries exporting electricity to/from Brunei based on TZ APG study | Bronze |
| 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, and 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) | Data served as initial and planned capacities from 2023 to 2050. This data is curated and validated by TransitionZero. See the following: Open Infrastructure Map, Brunei Department of Electrical Services, Brunei Climate Change Secretariat,Brunei Shell Petroleum , Brunei Ministry of Energy, Brunei Climate Change Secretariat, Solarvest | Gold |
