M. MORAES
Minas Gerais · GRANDE
Capacity
4,040 hm³
Coordinates
-20.285°N, 47.063°W
Operator
ONS
Current fill
80.5%vs 7 days ago
-1.6%losing
vs 1 year ago
+6.0%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 4,040 hm³ |
| Usable capacity | 2,500 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | GRANDE |
| Province | Minas Gerais |
| River basin | GRANDE |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -20.285, -47.063 · Open in Google Maps
About M. MORAES
As of June 10, 2026, M. MORAES is filled to 80.5% of its total capacity, holding roughly 2,011 hm³ of water out of a maximum 4,040 hm³. At this level the reservoir is high. Of that total, about 2,500 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 6.0 points above its level on the same date a year earlier.
Across the readings we hold for M. MORAES — 52 data points between June 27, 2025 and June 10, 2026 — the level has ranged from a low of 63.4% (December 12, 2025) to a high of 86.9% (May 15, 2026). On average the reservoir is fullest around May and at its lowest around December.
It is operated by ONS primarily for hydroelectric power. It lies within the GRANDE basin at 20.285°S, 47.063°W.
Key facts
- Current fill level
- 80.5%
- Water stored
- 2,011 hm³
- Total capacity
- 4,040 hm³
- Usable capacity
- 2,500 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▲ 6.0 pts
- Primary use
- Hydroelectric power
- River
- GRANDE
- River basin
- GRANDE
- Operator
- ONS
- Coordinates
- 20.285°S, 47.063°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 80.5% | 2,011 |
| 5 Jun 2026 | 82.0% | 2,051 |
| 29 May 2026 | 84.8% | 2,120 |
| 22 May 2026 | 86.3% | 2,157 |
| 15 May 2026 | 86.8% | 2,171 |
| 8 May 2026 | 86.4% | 2,160 |
| 1 May 2026 | 84.6% | 2,116 |
| 24 Apr 2026 | 83.9% | 2,097 |
| 17 Apr 2026 | 84.8% | 2,120 |
| 10 Apr 2026 | 83.9% | 2,097 |
| 3 Apr 2026 | 83.4% | 2,086 |
| 27 Mar 2026 | 83.8% | 2,095 |
Frequently asked questions
What is the current water level of M. MORAES?
As of June 10, 2026, M. MORAES is at 80.5% of its capacity, holding approximately 2,011 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is M. MORAES reservoir full?
No. As of June 10, 2026, M. MORAES is high at 80.5% of its capacity, so it is not full.
Is the water level at M. MORAES rising or falling?
The level at M. MORAES is falling — it dropped 1.6 percentage points over the latest week on record.
How much water can M. MORAES hold?
M. MORAES has a total capacity of 4,040 hm³, of which about 2,500 hm³ is usable storage.
Where is M. MORAES reservoir located?
M. MORAES is located in Minas Gerais, Brazil, within the GRANDE basin (coordinates 20.285°S, 47.063°W).
What is M. MORAES used for?
M. MORAES is used primarily for hydroelectric power, and is managed by ONS.