It is suggested to connect the Mediteranean Sea with the Dead Sea with a closed tunnel of diameter D=10.7 m and use the potential difference in levels to produce electric energy. What is the power generated? The data of the proposed system are (here the Mediterranean sea is the dam and the Dead sea is the discharge point while the tunnel is the penstock) Elevation Difference 401 m Distance between the seas (Channel length) is: (80,467 +Z) m Turbine efficiencyn = 90% 2.6 e/D Friction factor f = 8x g x Tunnel is made of concrete with Relative roughness 0.012; Tunnel Diameter is D=10.7 m From economic considerations the velocity should be: 2 2m/sec (this is recommended for the Hvdroelectric power stations. Use V=10 m/sec. The friction head loss is: 2g The tunnel inlet and outlet head losses are ignored.