Reservoir · Antioquia · Colombia · XM
Porce II
35.2% full
Capacity
124.14 GWh
Energy stored
44 GWh
River
Porce
Coordinates
6.805°N, 75.149°W
Last updated
2026-09-09
Current fill
35.2%vs 7 days ago
-15.5%losing
vs 1 year ago
-16.9%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. 6.805, -75.149 · Open in Google Maps
About Porce II
As of September 9, 2026, Porce II is filled to 35.2% of its total capacity, holding roughly 44 GWh of water out of a maximum 124 GWh. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 15.5 percentage points, and it is 16.9 points below its level on the same date a year earlier.
Across the readings we hold for Porce II — 2078 data points between January 1, 2021 and September 9, 2026 — the level has ranged from a low of 13.8% (September 21, 2024) to a high of 94.5% (May 6, 2025). On average the reservoir is fullest around October and at its lowest around February.
It is operated by XM primarily for hydroelectric power. It lies within the Porce basin at 6.805°N, 75.149°W.
Key facts
- Current fill level
- 35.2%
- Water stored
- 44 GWh
- Total capacity
- 124 GWh
- 7-day change
- ▼ 15.5 pts
- Year-on-year
- ▼ 16.9 pts
- Primary use
- Hydroelectric power
- River
- Porce
- River basin
- Porce
- Operator
- XM
- Coordinates
- 6.805°N, 75.149°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 9 Sep 2026 | 35.2% | 44 |
| 8 Sep 2026 | 47.7% | 59 |
| 7 Sep 2026 | 50.2% | 62 |
| 6 Sep 2026 | 46.8% | 58 |
| 5 Sep 2026 | 40.2% | 50 |
| 4 Sep 2026 | 49.3% | 61 |
| 3 Sep 2026 | 50.2% | 62 |
| 2 Sep 2026 | 50.7% | 63 |
| 1 Sep 2026 | 51.8% | 64 |
| 31 Aug 2026 | 49.3% | 61 |
| 30 Aug 2026 | 37.6% | 47 |
| 29 Aug 2026 | 37.0% | 46 |