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The Transmission Business

Reliance Infrastructure Limited is a premier Power Transmission Utility in the Indian Private Sector, both at Interstate & Intrastate levels. On a rapid growth path, it currently has a portfolio of 4 transmission projects with an asset base of INR 46 billion. These projects comprise of approximately 4,100 circuit kilometres (ckm) of transmission lines.

Project Details

Western Region System Strengthening Scheme - II (WRSSS - II)

Planned for strengthening the Western grid and facilitating an easy flow of surplus power for the Eastern Grid, nine National Grid Transmission lines, covered under two separate projects namely, Western Region Transmission (Maharashtra) Ltd. and Western Region Transmission (Gujarat) Ltd. have been implemented by Reliance Infrastructure Limited. This is the first ever 100 percent privately owned transmission project in India.

a) Western Region Transmission (Maharashtra) Ltd

Comprising six 400 kV lines of 2100 ckm, namely Solapur - Karad, Pune - Auranagabad, Parli - Solapur, Solapur - Kolhapur, Parli - Pune & Lonikhand-Kalwa, The transmission lines traverse mostly within Maharashtra and touch Karnataka. All six lines have already been commissioned by the Company, making the Project the first ever 100% privately owned interstate transmission venture in operations in India.

b) Western Region Transmission (Gujarat) Ltd

Comprising three 400 kV lines of 1000 ckm which connect Limdi, Vadavi, Kansari and Karamsad in Gujarat and touch Madhya Pradesh at Rajgarh. All three lines have already been commissioned.

Parbati Koldam Transmission

This is a joint venture company of Reliance Infrastructure Limited (74% equity) and Power Grid Corporation of India Ltd (26% equity) with all the Northern Grid constituents as the beneficiaries. This venture implements the evacuation systems for 800 MW Parbati-II and 800 MW Koldam Hydro-electric power projects being executed by NHPC and NTPC respectively. The venture comprises 400 kV lines of around 460 ckm namely Parbati-Koldam and Koldam-Ludhiana. The Parbati - Koldam lines have been commissioned already.

Mumbai Transmission Business

Mumbai Transmission Business performs a vital role in meeting power requirements of Mumbai suburbs. It is operating with eight 220 kV Extra High Voltage (EHV) substations having total 3,000 MVA transformation capacity with around 540 ckm of overhead & underground transmission feeders. This transformation capacity has been augmented at three old AIS substations and five GIS stations developed during the year 2011 and 2012.

In a bid, to enhance the transmission capacity of the substations, the Company has implemented a hybrid concept at old stations and innovative design for its new substations. The innovative design is a typical vertical indoor configuration, which requires lesser space as compared to the conventional outdoor EHV station. Critical issues of Right Of Way and space constraints for EHV feeders, are addressed by laying EHV cables and erecting 220kV cable terminations, on high vertical structures.

With prime focus on strengthening, the Mumbai transmission network, meeting the ever increasing power demand of Mumbai's suburbs is also of key significance to Mumbai Transmission Business, through collaborating / integrating power by establishing more interconnections with the State Transmission Network. Along with its dedicated efforts towards strengthening network, Mumbai Transmission has focused equally on delivering quality and reliable power supply to its consumers. By deploying numerous world class practices and technologies it has consistently maintained the 220kV System availability above 99.75%. The business has also successfully implemented islanding scheme to handle a technical eventuality in case of any grid disturbance, thereby protecting Mumbai power system.

Modalities of Quality, Environment, Occupational Health and Safety are addressed by religious implementation of Integrated Management System, since 2010. With various National & International accolades at the quality conventions, the zest for quality continues. Business also holds accreditation for Asset Management System (AMS) ISO - 55001, 2015, along with being 5S (workplace management) certified since 2014 by Quality Circle Forum of India (QCFI). In August 2017, business was felicitated with 5S certification from JUSE (Union of Japanese Scientist and Engineers). Mumbai Transmission consistently scored more than 85%, in two consecutive years 2016 and 2017, in the employee engagement survey, conducted by Aon Hewitt. Business was awarded 'Healthy Workplace Award' in 2015 by Arogya World India Trust. Business certified as India's Great Mid size workplace 2017 with 31st rank out of top 50.

System Availability of Mumbai Transmission System for FY 18