In calendar year 2024, with 18.5 GW of projects going under the hammer in 27 auctions. The lowest tariff discovered in 2024 was ₹2.15 (~$0.025)/kWh, 15% lower than the lowest tariff of ₹2.51 (~$0.0296)/kWh in 2023.

Here is a list of the five lowest solar tariffs discovered in auctions in 2024:

#1 Waaree Group won Rewa Ultra Mega Solar’s (RUMSL) auction to develop a 170 MW solar power project at the Neemuch Solar Park in Madhya Pradesh quoting a tariff of ₹2.15 (~$0.025)/kWh.

#2 SAEL Industries and NTPC Renewable Energy won 250 MW and 200 MW, respectively, by quoting ₹2.48 (~$0.0295)/kWh in Solar Energy Corporation of India’s (SECI) auction to develop 1.2 GW of ISTS-connected solar power projects (Tranche XVI) on a build, own, and operate basis. BluPine Energy secured 50 MW at ₹2.49 (~$0.0297)/kWh.

#3 SAEL Industries won 300 MW by quoting ₹2.50 (~$0.0297)/kWh in NTPC’s auction to set up 1,200 MW of ISTS-connected solar power projects. Rays Power Infra and Refex Green secured 100 MW each at ₹2.50 ($0.0297)/kWh, while ReNew Solar and Illuminate Hybren (Mahindra Susten) were awarded 300 MW and 176 MW, respectively, at ₹2.51 ($0.0299)/kWh.

#4 Solarcraft Power India 8 (BluPine Energy) and GRT Jewellers won 300 MW and 150 MW, respectively, by quoting ₹2.52 (~$0.0304)/kWh in SJVN’s auction to develop 1,500 MW of ISTS-connected solar power projects across India. Furies Solren (Mahindra) and JSW New Energy secured 300 MW and 700 MW, respectively, at ₹2.53 (~$0.0305)/kWh, while NTPC Renewable Energy was allotted 50 MW after quoting ₹2.54 (~$0.0306)/kWh.

ACME Solar Holdings, SAEL Industries, and Essar Renewables won 300 MW each by quoting ₹2.52 (~$0.0300)/kWh in SJVN’s auction to set up 1.2 GW of ISTS-connected solar power projects across India. Onward Solar Power secured 100 MW at ₹2.52 (~$0.0300)/kWh, while NTPC Renewable Energy (NTPC REL) was allotted 200 MW out of the quoted 400 MW at ₹2.53 (~$0.0301)/kWh under the bucket-filling method.

#5 SJVN Green Energy won 100 MW by quoting ₹2.54 (~$0.0306)/kWh in Gujarat Urja Vikas Nigam’s (GUVNL) auction to supply power from 600 MW of grid-connected solar projects (Phase XXI) at the Gujarat Industries Power Company’s solar park in Khavda, Gujarat, with a greenshoe option of an additional 600 MW. SAEL Industries secured 200 MW at ₹2.55 (~$0.0307)/kWh, while Coal India was allotted 300 MW out of the quoted 600 MW at ₹2.55 (~$0.0307)/kWh. 

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