TAQUARUÇU
São Paulo · PARANAPANEMA
Capacity
677 hm³
Coordinates
-22.545°N, 51.996°W
Operator
ONS
61.7% full
Current fill
61.7%vs 7 days ago
+2.5%gaining
vs 1 year ago
-3.6%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 677 hm³ |
| Usable capacity | 138.13 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARANAPANEMA |
| Province | São Paulo |
| River basin | PARANAPANEMA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -22.545, -51.996 · Open in Google Maps
About TAQUARUÇU
As of July 28, 2026, TAQUARUÇU is filled to 61.7% of its total capacity, holding roughly 85 hm³ of water out of a maximum 677 hm³. At this level the reservoir is within its normal operating range. Of that total, about 138 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 2.5 percentage points, and it is 3.6 points below its level on the same date a year earlier.
Across the readings we hold for TAQUARUÇU — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 49.5% (February 27, 2026) to a high of 93.0% (September 12, 2025). On average the reservoir is fullest around September and at its lowest around February.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAPANEMA basin at 22.545°S, 51.996°W.
Key facts
- Current fill level
- 61.7%
- Water stored
- 85 hm³
- Total capacity
- 677 hm³
- Usable capacity
- 138 hm³
- 7-day change
- ▲ 2.5 pts
- Year-on-year
- ▼ 3.6 pts
- Primary use
- Hydroelectric power
- River
- PARANAPANEMA
- River basin
- PARANAPANEMA
- Operator
- ONS
- Coordinates
- 22.545°S, 51.996°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 61.6% | 85 |
| 24 Jul 2026 | 59.1% | 82 |
| 17 Jul 2026 | 57.6% | 80 |
| 10 Jul 2026 | 62.2% | 86 |
| 3 Jul 2026 | 54.0% | 75 |
| 26 Jun 2026 | 63.7% | 88 |
| 19 Jun 2026 | 73.0% | 101 |
| 12 Jun 2026 | 60.1% | 83 |
| 5 Jun 2026 | 64.2% | 89 |
| 29 May 2026 | 60.6% | 84 |
| 22 May 2026 | 68.8% | 95 |
| 15 May 2026 | 72.5% | 100 |
Frequently asked questions
What is the current water level of TAQUARUÇU?
As of July 28, 2026, TAQUARUÇU is at 61.7% of its capacity, holding approximately 85 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is TAQUARUÇU reservoir full?
No. As of July 28, 2026, TAQUARUÇU is within its normal operating range at 61.7% of its capacity, so it is not full.
Is the water level at TAQUARUÇU rising or falling?
The level at TAQUARUÇU is rising — it gained 2.5 percentage points over the latest week on record.
How much water can TAQUARUÇU hold?
TAQUARUÇU has a total capacity of 677 hm³, of which about 138 hm³ is usable storage.
Where is TAQUARUÇU reservoir located?
TAQUARUÇU is located in São Paulo, Brazil, within the PARANAPANEMA basin (coordinates 22.545°S, 51.996°W).
What is TAQUARUÇU used for?
TAQUARUÇU is used primarily for hydroelectric power, and is managed by ONS.