Technical project data HEP Reservoirs net storage capacity (106m3) Net design head (m) Dam volume(103m3) Dam height (m) Type of dam Louros 0.37 59.2 12.4 18 Gravity Agras 733.8 156 40.2 10.5 Earthfill Ladhon 46.2 239 36 58 Buttress Tavropos 300 577 100 83 Arch Kremasta 3300 136 8170 165 Earthfill Kastraki 165 75.7 5100 96 Earthfill Edesseos 0.46 125 – – – Polyphyto 1500 145.5 3459 112 Rockfill Pournari I 344 79 9000 88 Earthfill Assomata 10 40.4 1450 52 Earthfill Sfikia* 16 65 1620 82 Earthfill Stratos I 11 37 2800 26 Earthfill Pigai Aoos 214 655 3000 78 (main) Earthfill Pournari II 3.9 13.5 700 11 Earthfill Thissavros** 575 154 12,000 172 Rockfill Platanovryssi 57 73.5 450 95 RCC