Adani Energy Solutions Ltd (AESL) has formally announced the completion of a renewable energy evacuation scheme in Tamil Nadu, housed under “Karur Transmission Ltd.”
The transmission scheme includes establishment of the 400/230kV, 1,000 MVA Karur Pooling Station and an associated transmission line spanning 8.51 ckm in Tamil Nadu. The associated transmission line is the LILO (loop in, loop out) of the 400kV double-circuit Pugalur-Pugalur (HVDC) transmission line.
This project will facilitate the evacuation of power from renewable sources in the Karur/Tiruppur Wind Energy Zone. Additionally, it will strengthen the Southern regional grid and support the integration of renewable energy sources on a large scale, AESL said.
The Karur/Tiruppur wind energy zone is a key wind corridor in Tamil Nadu, with significant capacities in wind energy and several under-construction wind farms. AESL was awarded this project to ensure the smooth evacuation of up to 2,500 mw of green power produced in the region. This project aligns with India’s decarbonization goals, supporting the country’s aim to achieve 500 GW of green energy by 2030. It will provide industrial, commercial, and residential consumers with enhanced access to reliable and clean energy.
AESL secured this project through the tariff-based competitive bidding (TBCB) route in December 2021 for a period of 35 years, on build, own, operate, and maintain (BOOM) basis.
Challenges surmounted
Despite numerous challenges, AESL executed this project in a fast-track mode, taking into consideration the topological challenges while minimizing ecological impact. Several innovative approaches were employed during the execution, including the use of high-boom RMC machines for concreting work, high-boom lifts and cranes for tower erections, and the implementation of advanced cybersecurity endpoint solutions through the latest SCADA system. The project also involved round-the-clock work in multiple shifts, allowing for enhanced progress. AESL’s execution prowess was displayed through the erection of two 48-tonne towers in less than 24 hours each, significantly surpassing the usual rate of 5-6 tonnes per day.
Furthermore, AESL successfully completed critical tasks such as the shutdown of the 400kV double-circuit Pugalur-Pugalur (HVDC) line and the erection of tower structures under the constraints of the existing transmission line. The construction phase encountered challenges related to foundations, which were overcome through the execution of stringing over coconut trees while adhering to all safety measures.
Also read: Adani Commissions 765kV Warora-Kurnool Transmission Line
Featured photograph (source: Adani Energy Solutions Ltd) is for representation only.
