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Cochin International Airport to inaugurate hydro power project at Kozhikode

Monday, 25 Oct 2021
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The Cochin International Airport (CIAL), which is the world's first fully solar powered airport, has now ventured into hydro power production and plans to provide power from its plant at Arippara near Kozhikode in Kerala to KSEB from November 2021.   
Kerala Chief Minister Pinarayi Vijayan will inaugurate the plant, which estimates an annual power generation of 14 million unit, on 6 November 2021. 
The 4.5 MWp run off the river small hydro project (SHP) was awarded to CIAL by the state Power Department as per the Kerala Small Hydro Power Policy under built, own, operate, transfer (BOOT) for a lease period of 30 years. 
CIAL has constructed a weir dam across Iruvazhinji River and hydro-mechanical and electro-mechanical systems at Arippara, near Kodencheri in Kozhikode district. The project was completed in September 2021 and trial run started in October 2021. 
CIAL purchased five acre of land from 32 residents and the total project cost is Rs 52 crore. The powerhouse will generate around 1.08 lakh unit of power a day during peak flow days and is estimated that the plant could be operational in full capacity for 130 days in a year.
Being a run-of-the-river project, CIAL SHP works on limited storage of water causing no adverse effect on the environment. 
The scheme envisages the construction of an overflow type weir across the river, which diverts the water to an intake pool from where the intake structure and connected water conductor system (WCS) start. 
A surge tank was constructed to moderate the water flow during load acceptance and load rejection time. A penstock feeds two machines each of 2.25 MW capacity. A powerhouse, with horizontal turbines, is installed at the right bank of the river with an installed capacity of 4.5 MW. 
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