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Chalakudy Basin Hydro Electric Projects
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| SHOLAYAR HYDRO ELECTRIC PROJECT | ||||||||||
| Sholayar Hydro Electric Project is having installed capacity of 54 MW (3 X 18 MW). The reservoir is formed by the Sholayar dam constructed across sholayar river, one of the main tributaries of Chalakudi river.The station commenced operation in 1966, as the second power station in Chalakudi Basin | ||||||||||
| SHOLAYAR RESERVOIR | ||||||||||
| Water Spread Area | 8.7 Sq. Km. | |||||||||
| Catchment Area | 186.6 Sq. Km. | |||||||||
| Average Rainfall | 3570 mm | |||||||||
| Full Reservoir Level (FRL) | 811.68 metre | |||||||||
| Minimum Drawdown level (MDDL) | 779.37 metre | |||||||||
| Effective Storage at FRL | 149.23 MCM | |||||||||
| Energy Equivalent at FRL | 102.4 MU | |||||||||
| SHOLAYAR POWER STATION | ||||||||||
| Place | Sholayar | |||||||||
| Village | Pariyaram | |||||||||
| Taluk | Mukundapuram | |||||||||
| District | Thrissur | |||||||||
| Installed Capacity | 54MW | |||||||||
| Annual Generation Capability | 233 MU | |||||||||
| Average Net head | 303 metre | |||||||||
| Prime mover | Vertical shaft Francis turbine | |||||||||
| Water required in MCM for 1 MU Generation | 1.5 MCM | |||||||||
| Full load discharge for 1 machine | 7.50 m3/ Sec | |||||||||
| Date of commssioning | ||||||||||
| Unit | Rating | Date of Commssioning | ||||||||
| U # 1 | 18 MW | 09.05.1966 | ||||||||
| U # 2 | 18 MW | 26.01.1968 | ||||||||
| U # 3 | 18 MW | 14.05.1968 | ||||||||
| Tail Race Discharge | ||||||||||
| The tail race dicharge joins Chalakudi river and flows to Poringalkuthu reservoir for power generation in the Poringalkuthu Powerhouse | ||||||||||
| Power evacuation: The Power generated in the station is evacuated through two 110 kV feeders. . | ||||||||||
| Generation in Mu for the last Six years from Sholayar Power station | ||||||||||
| Year | 2009-10 | 2010-11 | 2011-12 | 2012-13 | 2013-14 | 2014-15 | ||||
| 229.76 | 243.240 | 220.35 | 2009.27 | 233.62 | 237.93 | |||||
| PORINGALKUTHU HYDRO ELECTRIC PROJECT | ||||||||||
| Poringalkuthu Hydro Electric Project was commissioned in 1957 with an installed capacity of 32 MW (4 x 8MW). The modernisation and uprating work of 4 units at Poringlkuthu power station was complted in May 2015. The turbine used is of vertical shaft Francis type. The project utilises tailrace discharge from the Sholayar Powerhouse, Spill from the Sholayar Dam and rainfall recieved in its own catchment area. The reservoir is formed by the Poringalkuthu Dam constructed across Chalakkudi river. The station uses vertical shaft Francis turbine. | ||||||||||
| THE RESERVOIR | ||||||||||
| Water Spread Area | 2.82 Sq. Km. | |||||||||
| Catchment Area | 512 Sq. Km. | |||||||||
| Average Rainfall | 3230 mm | |||||||||
| Full Reservoir Level (FRL) | 424 m | |||||||||
| Minimum Drawdown level (MDDL) | 405.8m | |||||||||
| Effective Storage at FRL | 30.3 MCM | |||||||||
| Energy Equivalent at FRL | 10.71 MU | |||||||||
| PORINGALKUHTU POWER STATION | ||||||||||
| Village | Pariyaram | |||||||||
| Taluk | Mukundapuram | |||||||||
| District | Thrissur | |||||||||
| Average Net head | 170 metre | |||||||||
| Prime mover | Vertical shaft Francis turbine | |||||||||
| Water required in MCM for 1 MU Generation | 2.66 MCM (for uprated machine ) | |||||||||
| Full load discharge for 1 machine | 6.65 m3/ Sec (for uprated turbine ) | |||||||||
| Date of commissioning | ||||||||||
| Unit | Rating | Date of Commssioning | ||||||||
| U # 1 | 8 MW | 06.03.1957 | ||||||||
| U # 2 | 8 MW | 13.01.1958 | ||||||||
| U # 3 | 8 MW | 24.04.1959 | ||||||||
| U # 4 | 8 MW | 06.02.1960 | ||||||||
| RMU works were undertaken in the Power Station from February 2013. Units 1, 2, 3 & 4 have been renovated and the capacity of the units have been raised to 9 MW. | ||||||||||
| AFTER RENOVATION | ||||||||||
| Unit | Rating | Date of Commssioning | ||||||||
| U # 1 | 9 MW | 14.04.2014 | ||||||||
| U # 2 | 9 MW | 15.08.2014 | ||||||||
| U # 3 | 9 MW | 8.02.2015 | ||||||||
| U # 4 | 9 MW | 29-5-2015 | ||||||||
| Installed Capacity | 36 MW ( After renovation & Uprating ) | |||||||||
| Annual Generation Capability | 191 MU | |||||||||
| PORINGALKUTHU LEFT BANK EXTENSION | ||||||||||
| The Poringalkuthu left bank extension project was made by laying an additional penstock from the Poringalkuthu reservoir and was done to avoid the spill from the dam during intense monsoon. power house comprises one unit of 16 MW capacity. After power generation, water from Poringalkuthu & PLBE is released to the Chalakudi River. | ||||||||||
| Installed capcity | 1x16 MW | |||||||||
| Firm annual Generation capability | 74 MU | |||||||||
| Prime mover | Vertical shaft Francis turbine | |||||||||
| Avearge net head | 170 metre | |||||||||
| Water required for 1 MU generation | 2.57 MCM | |||||||||
| Full load discharge | 11.42 m3/ Sec | |||||||||
| Date of commissioning | ||||||||||
| Unit | Rating | Date of Commssioning | ||||||||
| U # 1 | 16 MW | 20.03.1999 | ||||||||
| Power evacuation | ||||||||||
| The power generated at Poringalkuthu & PLBE station is transmitted through three 110 kV feeders. | ||||||||||
| Generation in Mu for the last Six years from Poringalkuthu & PLBE Power stations | ||||||||||
| Year | 2009-10 | 2010-11 | 2011-12 | 2012-13 | 2013-14 | 2014-15 | ||||
| Generation in MU | 264.78 | 308.260 | 269.28 | 228.39 | 236.85 | 258.47 | ||||
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