Odisha Power Transmission Corporation Limited (OPTCL) has submitted a two-phase capital expenditure proposal of Rs 36.79 billion to the Odisha Electricity Regulatory Commission (OERC), seeking approval for large-scale development of the state’s power transmission infrastructure. The proposal aims to strengthen Odisha’s transmission network through new grid substations, high-capacity transmission lines and systematic upgrades of existing assets to meet rapidly growing electricity demand and ensure reliable, quality supply across the state. According to OPTCL sources, the investment plan focuses on expanding the grid in emerging industrial clusters, urban growth centres and high-load pockets, while improving power evacuation from upcoming generation projects and renewable energy sources. Key components include new 400 kV, 220 kV and 132 kV substations, augmentation of transformation capacity at existing facilities, installation of modern protection and control systems, strengthening of transmission corridors and replacement of ageing equipment to improve reliability and efficiency. Among the major proposals is a 400/220/33 kV GIS grid substation at Tata SEZ in Gopalpur, estimated to cost Rs 4.36 billion. The project is intended to meet rising power demand from proposed green hydrogen and green ammonia industries that have received state approvals. OPTCL officials said the substation would cater to industrial demand of up to 1,200 MW in the Gopalpur Industrial Park alone. OPTCL has also proposed a 400/220 kV substation at Ramakrushnapur in Bhadrak district at an estimated cost of Rs 4.42 billion, to support ongoing and planned investments across metals, cement, plastics, food processing and allied sectors. The utility cited additional demand from a proposed textile park by Indian Oil Corporation (47–150 MW) and FACOR (145 MW), alongside growth in residential and commercial infrastructure. The proposal also prioritises transmission development in backward and disaster-prone regions to enhance grid resilience and minimise outages during natural calamities. After hearing OPTCL’s applications, OERC has sought detailed technical justifications, including load-flow and system studies for proposed substations, updated cost estimates, timelines and investment schedules. The regulator has directed OPTCL not to award or execute any project without prior approval, warning that deviations would attract regulatory action.