GIRA Project
Key characteristics
Power:
1.335 MW (generation mode)
Flow rate:
up to 376 m³/s (90m³/s per turbine)
Upper reservoir:
up to 13 Hm³ (equivalent to 8 + 2,30 hours of storage)
Lower reseroir:
up to13 Hm³
Water conveyance system:
Buried pipelines or a 4,1 km tunnel
Plant:
underground cavern
General data
| Parameter | Value | Units |
|---|---|---|
| Number of pump-turbine units | 4 | u |
| Total flow rate (generation mode) | 376.4 | m³/s |
| Hydraulic head (generation mode) | 440 | m |
| Total power (generation mode) | 1.335 | MW |
| Toral power (pumping mode) | 1.550 | MW |
| Total energy storage capacity | 13.000 | MWh |
Upper reservoir
| Parameter | Value | Units |
|---|---|---|
| Normal maximum operating level | 552 | msnm |
| Reservoir depth | 33 | m |
| Volume | 13 | Hm³ |
Lower reservoir
| Parameter | Value | Units |
|---|---|---|
| Normal maximum operating level | 129 | msnm |
| Reservoir depth | 21 | m |
| Volume | 13 | Hm³ |
A proven and mature technology
Pumped-storage hydropower is a well-established and proven technology. In recent years, Europe has commissioned a number of pumped-storage facilities, adding around 500 GWh of energy storage capacity between 2011 and 2016. These projects highlighting the technology’s important role in supporting the energy transition by providing large-scale, long-duration energy storage and enhancing grid stability.