Reservoir · Antioquia · Colombia · XM
Porce III
54.0% full
Capacity
112.08 GWh
Energy stored
61 GWh
River
Porce
Coordinates
6.939°N, 75.138°W
Last updated
2026-09-09
Current fill
54.0%vs 7 days ago
+3.9%gaining
vs 1 year ago
-37.4%year-over-year
7-day trend
↑rising
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. 6.939, -75.138 · Open in Google Maps
About Porce III
As of September 9, 2026, Porce III is filled to 54.0% of its total capacity, holding roughly 61 GWh of water out of a maximum 112 GWh. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 3.9 percentage points, and it is 37.4 points below its level on the same date a year earlier.
Across the readings we hold for Porce III — 2078 data points between January 1, 2021 and September 9, 2026 — the level has ranged from a low of 16.3% (June 3, 2026) to a high of 96.0% (October 22, 2025). On average the reservoir is fullest around November and at its lowest around July.
It is operated by XM primarily for hydroelectric power. It lies within the Porce basin at 6.939°N, 75.138°W.
Key facts
- Current fill level
- 54.0%
- Water stored
- 61 GWh
- Total capacity
- 112 GWh
- 7-day change
- ▲ 3.9 pts
- Year-on-year
- ▼ 37.4 pts
- Primary use
- Hydroelectric power
- River
- Porce
- River basin
- Porce
- Operator
- XM
- Coordinates
- 6.939°N, 75.138°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 9 Sep 2026 | 54.0% | 60 |
| 8 Sep 2026 | 45.0% | 50 |
| 7 Sep 2026 | 40.4% | 45 |
| 6 Sep 2026 | 40.6% | 45 |
| 5 Sep 2026 | 45.8% | 51 |
| 4 Sep 2026 | 41.6% | 47 |
| 3 Sep 2026 | 43.4% | 49 |
| 2 Sep 2026 | 50.1% | 56 |
| 1 Sep 2026 | 42.0% | 47 |
| 31 Aug 2026 | 38.1% | 43 |
| 30 Aug 2026 | 40.0% | 45 |
| 29 Aug 2026 | 32.9% | 37 |