Adani appeal for tariff revision rejected in Tamil Nadu

Facebook
Twitter
LinkedIn
Reddit
Email
Tamil nadu was beset by cyclones and heavy rain last year, which damaged solar plants and caused delays. Flickr: Gemma Amor

The regulator in the Indian state of Tamil Nadu has rejected Indian conglomerate Adani’s call for a revaluation of the tariffs it is set to receive for developing the world’s largest solar plant, Adani sources have told Mercom Capital Group.

PV projects commissioned in the state before 31 March 2016 were due to receive a tariff of INR7.01/kWh (US$0.103) from Tamil Nadu Generation and Distribution Corporation (TANGEDCO), but this would go down to just INR5.1/kWh for any delayed projects.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Adani Green Energy, a subsidiary of Indian conglomerate Adani Group, completed a 648MW solar PV plant costing INR45.6 billion (US$679 million), however, while 360MW of this were commissioned before the deadline, 288MW were delayed following grid connection issues.

This delayed capacity was completed by Adani subsidiaries Kamuthi Solar Power (216MW) and Ramnad Renewable Energy (72MW), but both entities also filed appeals to the the Tamil Nadu Electricity Regulatory Commission (TNERC), claiming that a cyclone and heavy, extended rainfall in the region caused significant damages and delayed project execution. All kinds of damage from the same extreme weather were reported widely at the time.

Both companies claimed they had actually completed the projects ahead of the deadline, but the necessary substations had not been provided by TANGEDCO resulting in completion after the deadline.

Nevertheless, the Adani project will now receive the lower tariff after TNERC rejected the appeals, according to Mercom.

Kamuthi Solar Power and Ramnad Renewable Energy have now also filed pleas as a Dispute Resolution Petition, which will be taken on at the tribunal.

Along with the lower tariff issues, Tamil Nadu also happens to be the first state in India where solar developers experienced curtailment, It now also has the largest installed capacity of any state.

Yesterday Adani announced plans to build up to two solar projects of 100-200MW in Australia.

Read Next

October 7, 2025
Juniper Green Energy through its subsidiary Juniper Green Sigma Eight has signed a 70MW power purchase agreement with renewable energy giant Tata Power. 
October 6, 2025
Indian infrastructure company focused on rooftop and ground-based solar power installations, PVV Infra has secured solar power orders worth INR7.9 billion (US$90 million) through two of its subsidiaries. 
October 6, 2025
Indian solar developer ACME Group has established a new subsidiary to manage its renewable equipment manufacturing business, under which it is planning to scale production of TOPCon PV modules.
October 6, 2025
Rajasthan government will develop 500MW/2,000MWh of standalone battery energy storage systems (BESS) with a four-hour single-cycle configuration and extended operational life.
October 2, 2025
The Indian solar industry has 86GW and 182GW of solar cell and module manufacturing capacity, respectively, expected to be commissioned by 2027.
October 2, 2025
The Indian Department of Commerce has launched an antidumping investigation on solar encapsulants originating or exported from South Korea, Vietnam and Thailand.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK