A worldwide census of transmission system operators and utilities — country by country, plus the major synchronous areas that tie them together. Voltages, frequencies and official links for everyone who buys, builds or services transformers.
Every operator in the directory, mapped. Dot size = number of operators; colour = grid frequency. Hover for detail, click to jump to that country.
🗺️ Hover a country for its operators & frequency · click to filter the directory below.
Grids that beat as one heart — interconnected systems sharing a frequency.
| Synchronous area | Coverage | Frequency |
|---|
HVDC and AC links under construction or planned worldwide — where the grid map is being redrawn.
| Project | Technology | Capacity | Status |
|---|
Electrolyzer capacity is a direct proxy for rectifier-transformer and grid-connection transformer demand.
| Project | Electrolyzer | Output | Status |
|---|
Every 2 GW offshore platform means a fleet of converter transformers — the fastest-growing segment of transformer demand.
| Programme | Technology | Capacity | Status |
|---|
Where the money flows next — announced network investment programmes, a forward signal of transformer demand.
| Programme | Investment | Focus | Period |
|---|
Transmission operators and utilities worldwide. Search or filter by region.