Reservoir · Antioquia · Colombia · XM
Troneras
60.3% full
Capacity
63.95 GWh
Energy stored
39 GWh
River
Guadalupe
Coordinates
6.756°N, 75.250°W
Last updated
2026-09-09
Current fill
60.3%vs 7 days ago
-32.5%losing
vs 1 year ago
-34.3%year-over-year
7-day trend
↓falling
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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 6.756, -75.250 · Open in Google Maps
About Troneras
As of September 9, 2026, Troneras is filled to 60.3% of its total capacity, holding roughly 39 GWh of water out of a maximum 64 GWh. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 32.5 percentage points, and it is 34.3 points below its level on the same date a year earlier.
Across the readings we hold for Troneras — 2078 data points between January 1, 2021 and September 9, 2026 — the level has ranged from a low of 2.7% (February 24, 2021) to a high of 105.0% (January 11, 2021). On average the reservoir is fullest around July and at its lowest around February.
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
- 60.3%
- Water stored
- 39 GWh
- Total capacity
- 64 GWh
- 7-day change
- ▼ 32.5 pts
- Year-on-year
- ▼ 34.3 pts
- Primary use
- Hydroelectric power
- River
- Guadalupe
- River basin
- Guadalupe
- Operator
- XM
- Coordinates
- 6.756°N, 75.250°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 9 Sep 2026 | 60.3% | 39 |
| 8 Sep 2026 | 65.2% | 42 |
| 7 Sep 2026 | 67.2% | 43 |
| 6 Sep 2026 | 72.8% | 47 |
| 5 Sep 2026 | 81.7% | 52 |
| 4 Sep 2026 | 85.1% | 54 |
| 3 Sep 2026 | 84.8% | 54 |
| 2 Sep 2026 | 92.8% | 59 |
| 1 Sep 2026 | 88.0% | 56 |
| 31 Aug 2026 | 83.1% | 53 |
| 30 Aug 2026 | 63.8% | 41 |
| 29 Aug 2026 | 44.4% | 28 |