Idamalayar Hydroelectric Project

Idamalayar Hydroelectric Project.jpg

Idamalayar Hydroelectric Project is commissioned in 1985. It has an Approved Capacity of 75 MW. The type of project is Major and the type of powerhouse is Surface. The status of power plant is completed and are Operational. The source of water for the generation of power is Idamalayar River. The basin of power project is westgoing rivers from Tadri to Kanyakumari. The Hydroelectric Basin is West flowing Rivers and the Idamalayar Hydroelectric project is located in the South Hydroelectric Region. The hydroelectric development type of power house is storage and the type of power house is Surface. The power plant is owned by State Government. Kerala State Electricity Board is the Operating Company.

The beneficiary states of the power plant are Kerala and Tamil Nadu. The completion and commencement of power project was in 1987. The total number of turbines in the power plant is two and capacity per each turbine is 37.5 MW. The type of Turbine used in the power house is Francis. The manufacturer of both Turbine and Generator of Power Plant is by the Bharat Heavy Electrical Limited of India. There are two units in operation and all the two units are commissioned. The Unit Sizes of the power plant is 2 units of 37.5 MW. That is, the total installed capacity of power plant is 75 Megawatt.

How to Reach: The Idamalayar Hydroelectric Project is located at about11km away from the Kothamangalam town of Ernakulam district in the state of Kerala, India. You can reach this power station via Road, Rail or Air. Frequent Buses and Taxi services are available from Ernakulam to Kothamangalam Power Station. Ernakulam Junction Railway Station and Aluva Railway Station are the nearest Railway Stations. Cochin International Airport is located at about 41 kilometers from Power Station.

Project Details:

• Hydroelectric Project Name – Idamalayar Hydroelectric Project

• Commission Date – 1985

• Approved Capacity in MW – 75 Megawatt

• Installed Capacity in MW – 75 Megawatt

• Type of Project – Major (> 25 Megawatt)

• Type of Powerhouse - Surface

• Status –Completed and Operational

• Water Source – Idamalayar River

• Basin – West flowing rivers from Tadri to Kanyakumari

• Hydroelectric Basin – West flowing Rivers

• Hydroelectric Region – South Hydroelectric Region

• Hydroelectric Development Type - Storage

• Owner – State Government

• Operating Company – Kerala State Electricity Board

• Address – 11km from Kothamangalam in Kerala

• District – Ernakulam

• State – Kerala

• Contact Number –+91 (471) 244 6480

• Email –

• Website –

• Beneficiary States/ Union Territories – Kerala and Tamil Nadu

• Completion of Power Project– 1987

• Number of Turbines – 2

• Capacity per Turbine – 37.5 MW

• Type of Turbine – Francis

• Turbine Manufacturer – BHEL India

• Generator Manufacturer – BHEL India

• Unit Sizes – 2 units x 37.5 MW (75 MW)

• Total Units – 2

• Units Commissioned – All the two units are commissioned.