CANA BRAVA
Goiás · TOCANTINS
Capacity
2,300 hm³
Coordinates
-13.404°N, 48.142°W
Operator
ONS
91.2% full
Current fill
91.2%vs 7 days ago
+1.0%gaining
vs 1 year ago
-3.5%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 2,300 hm³ |
| Usable capacity | 393.87 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | TOCANTINS |
| Province | Goiás |
| River basin | TOCANTINS |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -13.404, -48.142 · Open in Google Maps
About CANA BRAVA
As of July 28, 2026, CANA BRAVA is filled to 91.2% of its total capacity, holding roughly 359 hm³ of water out of a maximum 2,300 hm³. At this level the reservoir is high. Of that total, about 394 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+1.0 pts), and it is 3.5 points below its level on the same date a year earlier.
Across the readings we hold for CANA BRAVA — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 69.0% (April 24, 2026) to a high of 95.1% (June 12, 2026). On average the reservoir is fullest around June and at its lowest around April.
It is operated by ONS primarily for hydroelectric power. It lies within the TOCANTINS basin at 13.404°S, 48.142°W.
Key facts
- Current fill level
- 91.2%
- Water stored
- 359 hm³
- Total capacity
- 2,300 hm³
- Usable capacity
- 394 hm³
- 7-day change
- ▲ 1.0 pts
- Year-on-year
- ▼ 3.5 pts
- Primary use
- Hydroelectric power
- River
- TOCANTINS
- River basin
- TOCANTINS
- Operator
- ONS
- Coordinates
- 13.404°S, 48.142°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 91.2% | 359 |
| 24 Jul 2026 | 90.1% | 355 |
| 17 Jul 2026 | 88.7% | 350 |
| 10 Jul 2026 | 91.9% | 362 |
| 3 Jul 2026 | 91.2% | 359 |
| 26 Jun 2026 | 90.5% | 356 |
| 19 Jun 2026 | 95.1% | 374 |
| 12 Jun 2026 | 95.1% | 374 |
| 5 Jun 2026 | 92.6% | 365 |
| 29 May 2026 | 91.2% | 359 |
| 22 May 2026 | 92.6% | 365 |
| 15 May 2026 | 91.5% | 361 |
Frequently asked questions
What is the current water level of CANA BRAVA?
As of July 28, 2026, CANA BRAVA is at 91.2% of its capacity, holding approximately 359 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is CANA BRAVA reservoir full?
No. As of July 28, 2026, CANA BRAVA is high at 91.2% of its capacity, so it is not full.
Is the water level at CANA BRAVA rising or falling?
The level at CANA BRAVA has been broadly stable over the latest week on record (+1.0 points).
How much water can CANA BRAVA hold?
CANA BRAVA has a total capacity of 2,300 hm³, of which about 394 hm³ is usable storage.
Where is CANA BRAVA reservoir located?
CANA BRAVA is located in Goiás, Brazil, within the TOCANTINS basin (coordinates 13.404°S, 48.142°W).
What is CANA BRAVA used for?
CANA BRAVA is used primarily for hydroelectric power, and is managed by ONS.