| Lower Mettur Hydroelectric Project | |
| Name Official: | Lower Mettur Hydroelectric Power Generation Project |
| Location Map: | India Tamil Nadu |
| Coordinates: | 11.7473°N 77.7886°W |
| Status: | O |
| Opening: | 1988 |
| Owner: | Government of Tamil Nadu |
| Dam Type: | Barrage |
| Purpose: | Power |
| Dam Crosses: | Cauvery River |
| Plant Commission: | 1988 |
| Plant Turbines: | 4 x 30 MW |
| Plant Capacity: | 120 MW |
Lower Mettur Hydroelectric Project is a hydropower generation project in the South Indian state of Tamil Nadu. It is a 120MW power generation project constructed across the Kaveri River. The project area is in the downstream of Mettur Dam, hence it derives the name. This project consists of four power plants which are located between Mettur in Salem district and Bhavani, Erode. This power generation project is owned by Government of Tamil Nadu and operated by TANGEDCO.[1]
This project involves a series of power plants each with Barrage type Dam, constructed across the River Kaveri to divert the stream to where the power house is located. It consists of four Barrages each of which receives water current in a serial manner.[2]