CHENNAI: Tamil Nadu ranked fourth in renewable energy generation in January, producing 3,119 million units (MU) of electricity, according to the latest data from the Ministry of New and Renewable Energy accessed by TNIE. Gujarat topped the list with 5,925 MU, followed closely by Rajasthan at 5,715 MU, while Karnataka secured the third position with 4,824 MU. Karnataka generated 1,704.68 MU more than Tamil Nadu during the month.
In the solar segment, Tamil Nadu marginally outperformed Karnataka. The state generated 1,683 MU from solar power, slightly higher than Karnataka’s 1,678 MU. However, the gap widened in hydro power generation. Tamil Nadu produced 284 MU from large hydro stations, while Karnataka generated 1,128 MU, reflecting its stronger hydro base.
A senior official from TN Green Energy Corporation Limited said the state has been focusing on expanding solar and wind capacity. “Wind power generation is largely seasonal and peaks between June and September,” the official said, adding that January is typically a lean season for wind generation in Tamil Nadu. In contrast, solar-dominant states such as Rajasthan and Gujarat maintain relatively steady output during winter, contributing to their higher overall renewable generation in January.
The officials noted that much of the land suitable for large-scale solar and wind projects in Tamil Nadu has already been utilised, making identification of new parcels a challenge going forward.
On hydro power, officials pointed out that Karnataka has strong potential for both large and small hydro stations, while Tamil Nadu’s hydro generation depends heavily on water inflows from neighbouring states - a key factor behind the difference in output.
Highlighting future plans, another official said that steps have been initiated to set up Battery Energy Storage System (BESS) units near substations.
Companies have already been selected through the tender process. In the coming years, new wind and solar plants are expected to be integrated with BESS facilities.
