NTPC Green Arm Signs PPA with PTC India for 1.2 GW Solar Power

NTPC Renewable Energy Ltd (NTPC REL), the green energy arm of India's largest power producer, has signed a power purchase agreement (PPA) with PTC India Ltd for the supply of 1.2 gigawatts (GW) of solar power. The deal is among the biggest single solar PPAs signed in India so far.

Under the agreement, NTPC REL will develop and deliver the solar power from projects it builds across the country. PTC India will buy the electricity and sell it to state distribution companies (discoms) and other bulk buyers. The companies did not disclose the tariff or the specific locations of the projects in the announcement.

What the deal means for India's solar push

The 1.2 GW PPA adds to the growing list of large-scale solar contracts in India. The country aims to install 500 GW of non-fossil fuel capacity by 2030, with solar playing the biggest role. NTPC REL has set its own target to build 60 GW of renewable energy capacity by 2032.

PTC India acts as a trading intermediary, buying power from generators and selling it to buyers. This deal gives state discoms a way to buy solar power without signing long-term contracts with individual developers. It also gives NTPC REL a guaranteed buyer for a large chunk of its upcoming solar capacity.

The agreement comes at a time when India's solar sector is growing fast but faces headwinds. Land acquisition, grid connectivity delays, and a proposed import tax on solar cells and modules have slowed some projects. Still, large developers like NTPC continue to push ahead.

NTPC's growing green portfolio

NTPC REL is the renewable energy subsidiary of state-owned NTPC Ltd. The parent company has been shifting its focus toward cleaner power sources. As of early 2025, NTPC's total installed capacity stood at over 73 GW, of which about 3.5 GW came from solar and wind. The company has plans to add 10 GW of renewable capacity by 2027.

The PPA with PTC India is part of that ramp-up. NTPC REL has already signed several other PPAs for solar and wind projects, including a 600 MW solar deal with Gujarat Urja Vikas Nigam Ltd last year.

PTC India, founded in 1999, is the country's largest power trading company. It trades about 70 billion units of electricity each year. The company has been increasing its focus on renewable energy trading, which now accounts for roughly a fifth of its total traded volume.

What comes next

NTPC REL will now move to build the solar projects needed to meet the 1.2 GW commitment. The company will likely set up plants in states with high solar radiation and available land, such as Rajasthan, Gujarat, or Madhya Pradesh. Project timelines and commissioning dates have not been announced.

For PTC India, the deal strengthens its renewable energy portfolio and gives it more power to offer to discoms looking to meet their renewable purchase obligations (RPOs). Indian states are required to buy a certain percentage of their power from renewable sources, and many fall short. This PPA helps bridge that gap.

The 1.2 GW deal is a concrete step toward India's clean energy goals, but it is just one piece of a much larger puzzle.