Geology and Geotechnical Engineering
The existing pumped storage plant Coo in Trois-Ponts has two upper basins (Coo 1 & Coo 2), both being located on Mont de Brume, and a single lower reservoir located at an ancient river bend of the Amblève River. The plant was commissioned in two stages, Coo 1 (1969) and Coo 2 (1978).
Thakot Hydropower Project will exploit the difference in head of circa 180 m between the planned Patan Hydropower Project and the existing Tarbela Project. Various options are being studied to exploit this head. The options include a single dam and hydropower scheme and a cascade of lower dams and hydropower schemes.
Since its commissioning in 1902, the Assiut Barrage has played a key role in Egypt’s food self sufficiency. Today the barrage supplies up to 440 m³/s of water through its head regulator to irrigate some 690,000 hectares of land along the left bank of the Nile stretching some 300km from Assiut to the outskirts of Cairo.
The Thana Plaun HEP (187 MW) is located on Beas River in Himachal Pradesh, and is being developed by Himachal Pradesh Power Corporation Ltd (HPPCL).
The Waldeck 2 pumped storage plant, with a capacity of 2 x 240 MW, is situated downstream of the Edertal Dam to the West of Kassel and was built between 1969 and 1975.
The Rama hydropower scheme was brought into service in 1968. The tunnel and the surge shaft were excavated in folded and faulted dolomites, limestones, spilites, carbonaceous breccias, slates and breccia, and for a section of 230 m in anhydrite. The headrace tunnel operates under a pressure head of between 75 m and 91 m, and extensive investigations and repair works carried out since then had reduced the leakage and improved the plant reliability, however cracking remains a problem and it was necessary to investigate and carry out a programme of grouting and rehabilitation of the concrete structures.
The pumped storage plant Goldisthal is located on the upper course of the river Schwarza in Southern Thuringia and has an installed capacity of 1,060 MW.