Hydro-pumped storage at Velventos, Prefecture of Kozani, Greece
Hydro-pumped storage at Velventos, Prefecture of Kozani, Greece
SITE
Reservoir of Polifito, Aliakmonas river, Greece
PROJECT OWNER
GREEN INVESTMENTS
YEAR
05/2025
DESCRIPTION
- Reconnaissance study
- Preliminary design study
TECHNICAL CHARACTERISTICS
- Upper Reservoir Capacity V = 1 x 106 m3
- Water conveyance (from upper reservoir to station):
- Penstock shaft D = 3.200 mm, L~805 m
- Headrace tunnel D = 3.200 mm, μήκους L~200 m
- Tailrace tunnel (from station to lower reservoir) D = 4.800 mm, L~1750 m
- Geometrical Height H = 831 m
- Norminal Discharge:
- 2 x 23,15 = 46,30 m3/s in turbine operation
- 2 x 16,34 = 32,68 m3/s in pump operation
- Lower Reservoir Capacity V = 1 x 106 m3
- Underground Power Station with 2 sets of turbine & multistage pump
- Access tunnel to the station with vaulted cross-section, Β~12,00 m, L~1.600 m
- Power:
- 2 x 162 = 324 MW in turbine operation
- 2 x 155 = 310 MW in pump operation
