# Transmission — west-to-east routing

China moves power from the resource-rich west to the load centres on the east
coast over an ultra-high-voltage (UHV) backbone.

**Operating (GEM UHV table, transcribed 2026-08-07):** 45 lines · **304.4 GW** ·
**52,304 km** (21 AC + 24 DC)

## Pipeline

| Status | Lines | GW |
| --- | --- | --- |
| Under construction | 7 | 42 |
| Permitted | 2 | 8 |
| Proposed | 8 | 48 |

The pipeline lines list about **127 GW** of supporting renewable generation against
**40 GW** of supporting coal, so the UHV buildout is mostly a renewable-transmission
programme. Those supporting-generation fields are only filled in for pipeline lines.

One status has moved on since the snapshot: Xinhua reported that the Shaanbei–Anhui
±800 kV DC line entered operation on 2026-06-30
(https://www.news.cn/20260630/27d55c87434d4827b8a5546088efb371/c.html). GEM's table
still listed it as under construction on 2026-08-07, and the figures above keep GEM's
status.

## Routing (operating lines, province level)

- **Largest senders:** Inner Mongolia (58.0 GW, 7 lines), Sichuan (57.6 GW, 8),
  Xinjiang (28.0 GW, 3), Yunnan (23.0 GW, 4).
- **Largest receivers:** Shandong (43.0 GW, 5 lines), Jiangsu (39.2 GW, 5),
  Hubei (26.9 GW, 5), Hunan (26.0 GW, 4).

These are province-level figures, not line routes. The buildout map draws the 36 UHVDC
lines as schematic arcs between hand-geocoded terminals: 12 lines have both converter
stations placed at their host county or district, 17 only at city or energy-base level,
and 7 at a province's main city because the station site is not public
(`data/sources/uhvdc_endpoints.json`).

Source: Global Energy Monitor, Ultra-High-Voltage (UHV) Power Transmission System in
China (GEM.wiki, CC BY-NC-SA), transcribed 2026-08-07.

## Data

- [uhv_transmission.json](https://chinaqueue.com/data/uhv_transmission.json) — lines, pipeline, routing
- [map.json](https://chinaqueue.com/data/map.json) — `overlays.uhvdc` (terminals and precision)