General Background This hydroelectric power plant is located along the Samala' river in the southwest region of Guatemala. BJIS prepared the detailed design including civil, mechanical, electrical and control engineering, and general of supervision construction.
Basic Design Data Project Flow (m3/sec): 13.4 River Flow (m3/sec): 500 (return period 1:1000) Head (m): 400 Electrical output: (MW): 47
Upper Gilboa Pumped StorageProject General Background This pumped storage project is designed to take advantage of the difference in electricity prices. (Low tariff at night and high tariff at day time). As such, water is pumped to an elevated reservoir during the night, using net electricity, and is dropped, through a penstock or a tunnel on turbines during the peak tariff hours manufacturing Hydro - Electricity. The Upper Gilboa pumped storage project is rated to manufacture 300 Megawatt and is presently at the general design stage. BJIS is responsible for the general design, engineering coordination, and detailed design of all the civil engineering works. Scope The pumped storage plant is designed to produce 300 Megawatt at electrical peak tariff hours by utilizing an elevation difference of about 510m. This plant includes upper and lower reservoirs, storing 2,400,000cum each, connected by a tunnel penstock of 4.0m dia. and an underground turbines' structure. Basic Design Data
A 4.0m dia. penstock tunnel, and 4.0m tailrace 2,750m long excavated inside the mountain, steel and concrete lined, connects the upper reservoir and the turbines.
An underground machinery building for the turbines, rated at 300 MW.
Lower 2,400,000cum earth reservoir, situated at kibbutz Reshafim area,
is constructed with earth dikes sealed by HDPE membrane.
Water supply system including pumps, pipelines, and