LAY
ORIGINAL BUILD
1927
UNIT TYPE
Vertical mixed-flow propeller
RATED OUTPUT
30 MW
RATED DISCHARGE
138 m3/s
RATED NET HEAD
25 M
RATED SPEED
128.6 rpm
Lay U5 — Alabama
The Lay Hydroelectric Plant is a facility of Alabama Power Company, located on the Coosa River near the city of Clanton, Alabama. The plant contains six (6) hydro generating units. Each unit has a nameplate rating of 30,155 KW. The original Lay Dam project began in 1910, with units in service in 1914. Lay Dam was redeveloped in the 1960s, as a part of the overall Coosa River project. The redevelopment project involved major modifications to the existing structures
Scope of work
Replacement of Mixflow Turbine
Replacement of (20) guide vanes
Rehabilitation of Turbine Guide Bearing & shaft seal
Rehabilitation of Turbine Generator Bearing
Rehabilitation of Turbine Shaft
Discharge Ring - SS Weld Overlay & Machining
Rehabilitation of Bottom Ring & Head Covers
On site WG pots Line Boring Head Cover/Bottom Ring
Rehabilitation of Distributor Mechanism & Servomotors
Rotor Poles Refurbishment
Disassembly/Reassembly & Commissioning