 thanaplaun hep thanaplaun hep gayathri mon 6192023 1140 thana plaun hep 191 mw has been contemplated as storage cum runofthe river scheme envisaging roller compacted concrete rcc gravity dam of 85 m height above the river bed level the project comprising 5 generating units 3x 5033 mw 151 mw main and 2 no environmental units 2x20mw 40 mw aggregating to 191 mw installed capacity is proposed to be located on right bank of river beas in district mandi himachal pradesh the dam site is proposed to be located 40 km downstream of pandoh dam in mandi district and power house shall be located just downstream of the toe of dam the project is expected to generate 69261 million units of electricity in 90 dependable year capacity 191 mw design energy in 90 dependable year 66807 mu diversion structure roller compacted concrete 10670 m high dam head race tunnel 10817 m 14689 m long 630 m 730 m dia horse shoe shape penstock pressure shaft two no underground 92m 127m long 57 m 60m dia power house underground type to house five nos vertical axis francis turbine with three generation units of 5033 mw and two units of 20 mw district mandi state himachal pradesh under investigation preconst clearances stage 1325 mw  beas beas mandi hp 191 mw  