KSEB to do a $47 M upgrade on Edamon substation
Kerala substation will be upgraded into GIS to meet the exponential growth in power demand.
Image for illustration purposes
India, Kerala: Kerala State Electricity Board Ltd (KSEB) has decided to upgrade the 220 kV substation at Edamon, a critical grid substation in south Kerala, into a 400 kV gas insulated substation (GIS) at a cost of $47 M (Rs 403.50 crore).
The Edamon substation is linked to Sabarigiri, Kakkad, and Kallada hydroelectric stations and caters to the load of many substations in Kollam, Thiruvananthapuram, and Pathanamthitta districts.
The project is included in phase II of the Trans Grid 2.0 project and is aiming to meet the exponential growth in power demand and to enhance the stability, reliability, and redundancy of supply.
The Edamon substation currently receives 220 kV grid connectivity from the PGCIL substation in Thirunelveli, Tamil Nadu, as well as the 220 kV Kayamkulam NTPC powerhouse, ensuring a stable power supply from multiple sources.
According to the KSEB order, the interstate double circuit line from the Tirunelveli substation—built to 400 kV standards but presently supplying power at 220 kV to the Edamon substation—can be utilised to provide 400 kV connectivity to the new substation.
“With Kerala’s current power import capacity limited to 4,260 MW, expanding the transmission network is essential to accommodate rising demand through power procurement,” KSEB Director said. Upgrading the existing substation to 400 kV will enable increased power imports while minimising transmission losses.
Additionally, the project will enhance the transmission infrastructure in Kollam, Alappuzha, and Pathanamthitta districts, allowing for a greater power draw from the system, the director added.
Source: Times of India
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