TRANSMISSION SYSTEM KERALA K ASOKAN DIRECTOR INSTITUTE FOR SUSTAINABLE DEVELOPMENT AND ENERGY STUDIES (InSDES)

NEED FOR ADEQUATE TRANSMISSION STSYEM Generation capacity addition – limited chances Existing generation mainly in Central / Southern parts of Kerala Demand in northern parts of Kerala increasing at faster rate Increased import requirement to meet demand Transport of power to load centres

TRANSMISSION TO FECILITATE Import of sufficient power from outside Evacuation of power from generation projects within state Efficient transfer of power to load centres Grid map Kerala South India

IMPORT OF POWER Existing system Total capacity 4500 MW (Possible 2000 MW only due to constraints) Constraints Inter regional S1 - S2 corridor congestion Overloading of inter state lines to Kerala

IMPORT OF POWER contd Future import requirement Proposals to increase import Sufficient to meet demand up to KV link between Trivandrum – Tuticorin for future

EFFICIENT TRANSFER OF IMPORTED POWER 400 KV network within state required – Proposed works Madakkathara - Areacode DC line by Areacode – Mylatti DC line by

POWER EVACUATION FROM GENERATION PROJECTS Proposals for power evacuation from new generation projects Proposals for power evacuation from new generation projects

STRENGTHENING OF EXISTING NETWORK To overcome inadequacies – Proposals Proposals To meet the future demand – Projected demand Projected demand – Existing substations Existing substations – Future requirements 400 KV substations 220 KV substations

MAJOR ISSUES Objection from landowners For cutting trees For placing towers Delay in land acquisition Contract failures

REMEDIES Narrow based towers / Monopoles Multi voltage / multi circuit towers EHT UG cable Submarine cable HVDC transmission Higher capacity conductors / HTLS conductors GIS / Hybrid stations Existing ROW for new lines Simplify LA procedure New system for tendering / selection of contractors Timely decisions / Timely payments Route/Technology options Discussion with political parties

ACTION REQUIRED Completion of ongoing projects on war footing Timely completion of already sanctioned lines Follow up action with CEA / SRPC/ PGCIL Renovation / up gradation of existing system Adopting new technologies and new systems Long term planning

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