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  • 1. What is the context and background of Mumbai Urja Marg project?

    Mumbai Urja Marg project a part of a wider inter-state transmission strengthening scheme namely Western Region Strengthening Scheme-XIX (WRSS-XIX) and North Eastern Region Strengthening Scheme-IX (NERSS-IX) which were approved in the 37th Meeting of Empowered Committee on Transmission held on 20 September 2017.

    The components of Western Region and North Eastern Region (WR-NER) Strengthening Scheme are as below:

    WRSS-XIX Details
    Package A Additional 400 kV outlets from Banaskantha 765/400 kV S/s Setting up 35 ckm lines in Gujarat to help distribute renewable energy being generated in the state to a wider set of consumers.
    Package B Establishment of New Substation at Vapi/Ambethi area and its associated transmission lines Establishing a 1000 MVA substation in Vapi along with 51 ckm of lines to bring clean nuclear power from Kakrapar Atomic Power Plant in Gujarat for further distribution across the Union Territories of Daman, Diu and Dadra Nagar Haveli.
    Package C Additional ISTS feed to Navi Mumbai 400/220 kV substation of Powergrid Setting up 179 ckm (~100kms) of lines for critical system strengthening and decongesting the evacuation system in Mumbai Metropolitan Region.
    Package D Pare Hydro Electric Project (Arunachal Pradesh) – North Lakhimpur 132 kV D/C line nvolves evacuation of hydro power from 110 MW Pare Hydro-Electric Project situated in Arunachal Pradesh
  • 2. Doesn’t MMR have enough power to meet its need? What is the need of this Transmission project?

    Currently, the peak power demand in Mumbai Metropolitan Region (MMR) is around 4500 MW. This requirement is partly met through the 1877 MW power generated in Mumbai while the remaining power is catered from outside Mumbai through the current transmission network which allows import of power to MMR. However, it is close to its full capacity in terms of utilization. This means that in case of outage of any transmission line (due to fault or maintenance), the system operates in a critical state where any further tripping (of lines or internal generation in Mumbai) can result in a load shedding and any further tripping or overload can lead to blackout situation. The October 2020 event is a case in point. In view of this situation, it is imperative to strengthen the existing transmission network through additional ISTS feed.

    Further, with accelerated growth under the trillion-dollar economy ambition, power demand is expected to increase exponentially. This will add to the already increasing organic power demand growth that the region is experiencing currently.

    Mumbai Urja Marg Transmission project will help establish a critical energy lifeline for Mumbai Metropolitan region that will have the potential to carry more than 2000 MW of additional ISTS feed. The project will also help in decongesting its present transmission network which will enable increased power flow in the region as well.

    To learn more about the project impact, click here Project Impact

  • 3. What are the different elements of the project?

    The project has three transmission elements in Maharashtra. They are:

    • 400 kV D/C (quad) Padgha to Kharghar Transmission Line
    • 400 kV D/C Padgha to Navi Mumbai LILO Transmission Line
    • 220 kV D/C Apta – Taloja LILO Transmission Line

    To learn about each project element, visit the About Us section.

  • 4. What will be the impact of the project on lands through which the corridor is passing?

    In case of transmission line project, there is no land acquisition or purchase made. The project only requires ‘Right of Way’ (ROW) access on the land parcel and the land title continues to remain with the landowner. However, the landowner is duly compensated for the surface damages (crop compensation) incurred during the construction activity as well as for the land area used under tower and conductor.

  • 5. Are transmission towers dangerous? Can humans and animals get an electric shock if they accidently come in contact with the transmission towers?

    Transmission systems co-exist with nature. Electricity does not run through transmission towers but through conductors only which are connected to the transmission tower through isolated medium called as insulators. Further, earthing is provided to each tower for protection against lightning strikes.