Reservoir · Antioquia · Colombia · XM
Troneras
84.5% full
Capacity
58.35 GWh
Energy stored
49 GWh
River
Guadalupe
Coordinates
6.756°N, 75.250°W
Last updated
2026-10-26
Current fill
84.5%vs 7 days ago
-2.0 pplosing
vs 1 year ago
+27.0 ppyear-over-year
7-day trend
↓falling
Drought context
Storage vs October average
134%of normal
84.5% full on 2026-10-26, against an average of 63.0% for October across 6 years of readings (+21.5 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around Troneras had well below normal rain, a shortfall seen about one year in six. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.45). Rain, not storage. Colombia drought figures →
Data source: XM — Operador del Mercado de Energía — daily useful-energy storage (VoluUtilDiarEner) and useful capacity (CapaUtilDiarEner). Colombia is a hydropower system, so storage is reported as energy (GWh), not water volume; fill % is useful energy ÷ useful capacity. Last reading: 2026-10-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 6.756°N, 75.250°W · Open in Google Maps
About Troneras
As of October 26, 2026, Troneras is filled to 84.5% of its total capacity, holding 49.29 GWh of water out of a maximum 58.35 GWh. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 2.0 percentage points, and it is 27.0 points above its level on the same date a year earlier.
Across the readings we hold for Troneras — 1962 data points between January 1, 2021 and October 26, 2026 — the level has ranged from a low of 2.4% (February 24, 2021) to a high of 105.0% (June 24, 2021). On average the reservoir is fullest around July and at its lowest around March.
It is operated by XM primarily for hydroelectric power. It lies within the Guadalupe basin at 6.756°N, 75.250°W.
Key facts
- Current fill level
- 84.5% of total capacity
- Water stored
- 49.29 GWh
- Total capacity
- 58.35 GWh
- 7-day change
- ▼ 2.0 pp
- Year-on-year
- ▲ 27.0 pp
- Primary use
- Hydroelectric power
- River basin
- Guadalupe
- Operator
- XM
- Coordinates
- 6.756°N, 75.250°W
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 26 Oct 2026 | 84.5% | 49.29 |
| 25 Oct 2026 | 93.0% | 54.25 |
| 24 Oct 2026 | 90.0% | 52.52 |
| 23 Oct 2026 | 83.3% | 48.59 |
| 22 Oct 2026 | 88.4% | 51.56 |
| 21 Oct 2026 | 92.0% | 53.65 |
| 20 Oct 2026 | 91.5% | 53.39 |
| 19 Oct 2026 | 86.5% | 50.49 |
| 18 Oct 2026 | 83.8% | 48.93 |
| 17 Oct 2026 | 77.0% | 44.93 |
| 16 Oct 2026 | 80.7% | 47.09 |
| 15 Oct 2026 | 86.1% | 50.22 |