The impoundments are among others to store water. Why create reservoirs?Electricity is the dune movement quantity of electrons, it is impossible to store directly. However, put water in reserve for future use makes it easier to respond to a demand for electricity that constantly vary the times and seasons. Similarly, we put wood logs dry to use them in a timely manner, when we need the warmth of the fire.
Ability to open and close the valve
Quebec, electricity demand is very strong during the cold winter days and decreases considerably in the summer. It is therefore essential to manage water resources so that generating units are supplied throughout the year, so it is important to analyze the impact of rainfall and anticipate future needs.
Quebec, electricity demand is very strong during the cold winter days and decreases considerably in the summer. It is therefore essential to manage water resources so that generating units are supplied throughout the year, so it is important to analyze the impact of rainfall and anticipate future needs.
Hydro-Quebec has 25 large tanks. True inland seas, they offer maximum storage capacity of 170 billion kilowatt hours, equivalent to the needs of all of Quebec for a year.
Hydro-Québec's five main reservoirs
| TANK | COMPLEX HYDRO | VOLUME FOR GENERATING ELECTRICITY | TOTAL VOLUME | AREA TANK |
|---|---|---|---|---|
| Billion m 3 | Billion m 3 | Km 2 | ||
| CANIAPISCAU | THE GREAT | 39.0 | 53.8 | 4318 |
| MANICOUAGAN | MANIC-OUTARDES | 35.2 | 139.8 | 1973 |
| THE BIG 3 | THE GREAT | 25.2 | 60.0 | 2536 |
| Robert-Bourassa | THE GREAT | 19.4 | 61.7 | 2815 |
| TO OUTARDES 4 | MANIC-OUTARDES | 10.7 | 24.3 | 625 |
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