Transmission
High-voltage lines that carry bulk power over long distances.
- Voltage
- kV
- Transfer capability
- MW · GW
- Line length
- km
Key concepts
What we measure, and in which unit
Distribution
Lower-voltage networks that deliver power to homes and businesses.
- Peak load
- MW
- Delivered energy
- GWh · TWh
- Reliability
- SAIDI, min
Interconnection
Links between grids or market zones, and the queue of projects waiting to connect.
- Link capacity
- MW · GW
- Annual flows
- TWh
- Queue size
- GW
Losses
Energy lost as heat between generation and the meter.
- Losses
- TWh
- Loss rate
- % of supply
- Basis
- T&D combined
Data
Net electricity imports, 2024
TWh per year. Largest net importers (positive) and net exporters (negative)
Net importerNet exporter
Show the data as a table
| Country or region | Net imports (TWh, + import / − export) |
|---|---|
| Italy | 51.0 |
| United Kingdom | 33.2 |
| Thailand | 32.4 |
| Germany | 26.3 |
| United States of America | 13.8 |
| Brazil | 11.6 |
| Hong Kong | 11.4 |
| Paraguay | -16.0 |
| Russian Federation (the) | -16.4 |
| China | -17.0 |
| Norway | -18.4 |
| Sweden | -33.4 |
| Lao People's Democratic Republic (the) | -36.7 |
| France | -90.0 |
- Source
- Ember, Yearly Electricity Data (CC BY 4.0)
- Retrieved
- 24 October 2026
- Method
- Methodology §6
Transfer research
All Transfer research Reports, briefs and data on transfer
Select a marker to jump to the item.
ReportBriefData releaseMethodology note
Brief · Transfer
[Placeholder] Brief on grid congestion
Placeholder summary. One or two sentences describing the scope and the question the piece addresses, without stating results.
Data release · Transfer
[Placeholder] Data release: interconnector flows
Placeholder summary. One or two sentences describing the scope and the question the piece addresses, without stating results.
Report · Transfer
[Placeholder] Report on transmission build-out
Placeholder summary. One or two sentences describing the scope and the question the piece addresses, without stating results.
Datasets
Open the data explorer Related data
| Dataset | Unit | Coverage | Source | Download |
|---|---|---|---|---|
| Net electricity imports by country | TWh / year | Latest year | Ember (CC BY 4.0) | CSV for Net electricity imports by country |
| [Placeholder] Interconnector capacity by link | MW | To be defined | To be defined | Planned |
| [Placeholder] Transmission and distribution losses | % · TWh | To be defined | To be defined | Planned |