CANOAS I
Paraná · PARANAPANEMA
Capacity
212 hm³
Coordinates
-22.942°N, 50.516°W
Operator
ONS
80.2% full
Current fill
80.2%vs 7 days ago
-15.6%losing
vs 1 year ago
N/A7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 212 hm³ |
| Usable capacity | 27.7 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARANAPANEMA |
| Province | Paraná |
| River basin | PARANAPANEMA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -22.942, -50.516 · Open in Google Maps
About CANOAS I
As of September 9, 2026, CANOAS I is filled to 80.2% of its total capacity, holding roughly 22 hm³ of water out of a maximum 212 hm³. At this level the reservoir is high. Of that total, about 28 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 15.6 percentage points.
Across the readings we hold for CANOAS I — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 80.2% (March 6, 2026) to a high of 99.0% (March 13, 2026). On average the reservoir is fullest around February and at its lowest around January.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAPANEMA basin at 22.942°S, 50.516°W.
Key facts
- Current fill level
- 80.2%
- Water stored
- 22 hm³
- Total capacity
- 212 hm³
- Usable capacity
- 28 hm³
- 7-day change
- ▼ 15.6 pts
- Primary use
- Hydroelectric power
- River
- PARANAPANEMA
- River basin
- PARANAPANEMA
- Operator
- ONS
- Coordinates
- 22.942°S, 50.516°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 80.2% | 22 |
| 4 Sep 2026 | 95.8% | 27 |
| 28 Aug 2026 | 93.7% | 26 |
| 21 Aug 2026 | 94.8% | 26 |
| 14 Aug 2026 | 88.5% | 25 |
| 7 Aug 2026 | 88.5% | 25 |
| 31 Jul 2026 | 87.4% | 24 |
| 24 Jul 2026 | 96.9% | 27 |
| 17 Jul 2026 | 91.6% | 25 |
| 10 Jul 2026 | 87.4% | 24 |
| 3 Jul 2026 | 86.4% | 24 |
| 26 Jun 2026 | 91.6% | 25 |