The project has been executed by Adani Electricity Mumbai Infrastructure Ltd (AEMIL), a subsidiary of Adani Energy Solutions Ltd, as part of efforts to strengthen power transmission infrastructure in one of India’s most energy-intensive urban clusters.
The HVDC link includes a 30-kilometre overhead transmission line and a 50-kilometre underground corridor. The infrastructure has been specifically designed to operate within the constraints of a densely built urban environment, where conventional transmission expansion is limited by space and right-of-way challenges.
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A key feature of the project is the deployment of Voltage Source Converter (VSC)-based HVDC technology. This system enables faster and more precise control of power flows, improves voltage stability, and enhances overall grid reliability. It is particularly suited for urban grids where load fluctuations are high and infrastructure flexibility is required.
The project also includes what has been described as the world’s first compact HVDC substation. The design has been tailored for installation in space-constrained urban locations, enabling high-capacity transmission infrastructure without requiring large land parcels typically associated with conventional substations.
According to AESL, the HVDC link enhances the ability of Mumbai and the MMR to draw electricity from outside city limits, including renewable energy generated in other regions. While Mumbai is already connected to the national grid, the new link increases transfer capability and enables more controlled and efficient power flow into the city network.
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The additional 1,000 MW capacity is intended to support rising electricity demand in the Mumbai Metropolitan Region, which remains one of the country’s most power-intensive urban zones. The infrastructure is also aimed at reducing reliance on in-city generation sources and improving the stability of supply across the distribution network.
The company said the system improves grid resilience and energy security for the region, lowering the risk of large-scale outages and enabling more stable integration of external power sources into the urban grid structure.
The project has been designed in response to structural vulnerabilities identified in Mumbai’s power system following the October 2020 blackout, which exposed constraints in transmission capacity and intra-city load management. The HVDC link is intended to address such constraints by enabling high-capacity, long-distance power transfer with greater controllability.
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The HVDC system’s ability to regulate voltage and manage dynamic load conditions is expected to support stable operations in the Mumbai grid, particularly during peak demand periods. The combination of underground and overhead components allows the project to function within existing urban constraints while maintaining high transmission efficiency.
The Kudus–Aarey link is among the largest urban HVDC infeeds globally and is expected to significantly increase the share of power sourced from outside Mumbai, easing pressure on in-city generation and strengthening grid resilience as demand continues to grow across the MMR.
On Monday (April 13), shares of Adani Energy Solutions Ltd ended at ₹1,175.00, up by ₹16.95, or 1.46%, on the BSE.
