B.COQUEIROS
Goiás · PARANAIBA
Capacity
347.8 hm³
Coordinates
-18.721°N, 51.004°W
Operator
ONS
98.4% full
Current fill
98.4%vs 7 days ago
-1.6%losing
vs 1 year ago
+1.0%year-over-year
7-day trend
↓falling
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 July 28, 2026, B.COQUEIROS is filled to 98.4% of its total capacity, holding roughly 48 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 fallen by 1.6 percentage points, and it is 1.0 points above its level on the same date a year earlier.
Across the readings we hold for B.COQUEIROS — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 82.2% (October 31, 2025) to a high of 100.0% (July 24, 2026). On average the reservoir is fullest around July 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
- 98.4%
- Water stored
- 48 hm³
- Total capacity
- 348 hm³
- Usable capacity
- 48 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▲ 1.0 pts
- Primary use
- Hydroelectric power
- River
- CLARO
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 18.721°S, 51.004°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 98.4% | 48 |
| 24 Jul 2026 | 100.0% | 49 |
| 17 Jul 2026 | 99.0% | 48 |
| 10 Jul 2026 | 99.0% | 48 |
| 3 Jul 2026 | 99.5% | 48 |
| 26 Jun 2026 | 95.3% | 46 |
| 19 Jun 2026 | 92.1% | 45 |
| 12 Jun 2026 | 90.5% | 44 |
| 5 Jun 2026 | 93.2% | 45 |
| 29 May 2026 | 90.0% | 44 |
| 22 May 2026 | 88.5% | 43 |
| 15 May 2026 | 90.0% | 44 |
Frequently asked questions
What is the current water level of B.COQUEIROS?
As of July 28, 2026, B.COQUEIROS is at 98.4% of its capacity, holding approximately 48 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is B.COQUEIROS reservoir full?
B.COQUEIROS is essentially full, sitting at 98.4% of capacity as of July 28, 2026.
Is the water level at B.COQUEIROS rising or falling?
The level at B.COQUEIROS is falling — it dropped 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.