B.COQUEIROS
Goiás · PARANAIBA
Capacity
347.8 hm³
Coordinates
-18.721°N, 51.004°W
Operator
ONS
Current fill
94.7%vs 7 days ago
+1.6%gaining
vs 1 year ago
-2.6%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 347.8 hm³ |
| Usable capacity | 48.47 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | CLARO |
| Province | Goiás |
| River basin | PARANAIBA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -18.721, -51.004 · Open in Google Maps
About B.COQUEIROS
As of June 10, 2026, B.COQUEIROS is filled to 94.7% of its total capacity, holding roughly 46 hm³ of water out of a maximum 348 hm³. At this level the reservoir is high. Of that total, about 48 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 1.6 percentage points, and it is 2.6 points below its level on the same date a year earlier.
Across the readings we hold for B.COQUEIROS — 52 data points between June 27, 2025 and June 10, 2026 — the level has ranged from a low of 82.2% (October 31, 2025) to a high of 99.0% (July 11, 2025). On average the reservoir is fullest around August and at its lowest around March.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAIBA basin at 18.721°S, 51.004°W.
Key facts
- Current fill level
- 94.7%
- Water stored
- 46 hm³
- Total capacity
- 348 hm³
- Usable capacity
- 48 hm³
- 7-day change
- ▲ 1.6 pts
- Year-on-year
- ▼ 2.6 pts
- Primary use
- Hydroelectric power
- River
- CLARO
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 18.721°S, 51.004°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 94.7% | 46 |
| 5 Jun 2026 | 93.2% | 45 |
| 29 May 2026 | 90.0% | 44 |
| 22 May 2026 | 88.5% | 43 |
| 15 May 2026 | 90.0% | 44 |
| 8 May 2026 | 91.6% | 44 |
| 1 May 2026 | 91.1% | 44 |
| 24 Apr 2026 | 89.5% | 43 |
| 17 Apr 2026 | 85.3% | 41 |
| 10 Apr 2026 | 88.5% | 43 |
| 3 Apr 2026 | 90.5% | 44 |
| 27 Mar 2026 | 85.9% | 42 |
Frequently asked questions
What is the current water level of B.COQUEIROS?
As of June 10, 2026, B.COQUEIROS is at 94.7% of its capacity, holding approximately 46 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is B.COQUEIROS reservoir full?
No. As of June 10, 2026, B.COQUEIROS is high at 94.7% of its capacity, so it is not full.
Is the water level at B.COQUEIROS rising or falling?
The level at B.COQUEIROS is rising — it gained 1.6 percentage points over the latest week on record.
How much water can B.COQUEIROS hold?
B.COQUEIROS has a total capacity of 348 hm³, of which about 48 hm³ is usable storage.
Where is B.COQUEIROS reservoir located?
B.COQUEIROS is located in Goiás, Brazil, within the PARANAIBA basin (coordinates 18.721°S, 51.004°W).
What is B.COQUEIROS used for?
B.COQUEIROS is used primarily for hydroelectric power, and is managed by ONS.