Adani Electricity Mumbai Infrastructure (AEMIL), a subsidiary of Adani Energy Solutions (AESL), has commissioned a 1 GW high-voltage direct current (HVDC) transmission link between Kudus and Aarey, enabling a greater flow of renewable power into Mumbai.

The project, which includes a 30-km overhead transmission line and a 50-km underground corridor, has been engineered to operate within the constraints of a densely built urban environment.

The Kudus-Aarey link is set to boost the share of electricity supplied from outside Mumbai. This will reduce the burden on local generation while enhancing grid reliability as demand continues to rise across the Mumbai Metropolitan Region (MMR).

The project houses a compact HVDC substation.

The project deployed Voltage Source Converter (VSC)-based HVDC technology. This enables faster, more precise control of power flows, improves voltage stability, and enhances grid reliability.

It also provides operational advantages such as dynamic voltage support, lower transmission losses, and black-start capability, enabling power restoration without an external supply and allowing faster recovery during outages.

Developed in response to the October 2020 Mumbai blackout, which exposed critical vulnerabilities in the city’s power system, the project is part of an effort to enhance grid resilience and reliability.

The project improves connectivity by enabling more controlled, efficient, and higher-capacity power flows, supporting the integration of renewable energy.

For the MMR, the additional 1 GW capacity will help reduce reliance on in-city generation and lower the risk of large-scale outages.

Recently, AESL was selected by PFC Consulting to develop the interstate transmission system for the drawal of power from the South Kalamb substation: Part A in Maharashtra.

In February this year, AESL secured long-term financing from a consortium of Japanese banks, led by MUFG Bank and Sumitomo Mitsui Banking Corporation, for its ±800 kV HVDC transmission project to evacuate 6 GW of solar energy from Bhadla, Rajasthan, to Fatehpur, Uttar Pradesh.