CESC Invites Bids for 600 MW ISTS-Connected Wind-Solar Hybrid Projects
CESC has invited bids for developing 600 MW of ISTS-connected wind–solar hybrid projects under a competitive tariff-based tender. Bid submission ends on January 19, 2026.
November 28, 2025. By Mrinmoy Dey
Identification of land, installation and ownership of the project, along with obtaining connectivity and necessary approvals and interconnection with the ISTS network for supply of power to CESC, will be under the scope of the bidder.
Bidders need to pay INR 29,500 as a tender document fee. Further, they need to deposit INR 5 lakh (plus GST) as a bid processing fee. They also need to furnish INR 20 lakh/MW as an earnest money deposit (EMD).
Selected bidders need to deposit a cumulative of INR 23.55 lakh/MW for the solar component and INR 32.45 lakh/MW for the wind power component.
The last date for submission of bids in January 19, 2026. The techno-commercial bids will be opened on January 20, 2026.
The minimum contracted capacity for this tender must be 50 MW, with a maximum capacity of 300 MW to be allocated to a single bidder. The contracted capacity must be quoted in multiples of 50 MW only.
CESC will enter into PPAs with the winning bidders which shall be valid for a period of 25 years.
Bidders must use type-certified wind turbine models listed in Approved List of Models and Manufacturers (Wind) for the wind projects. For the solar projects, the modules must be included in ALMM List-I and the cells used in the modules must be included in ALMM List-II.
The declared annual Capacity Utilisation Factor (CUF) must not be less than 50 percent for any of the year during the term of the PPA.
The HPD must install and maintain GPS enabled Automatic Weather Station (AWS).
As for financial eligibility, the bidder’s net worth must not be less than a cumulative of INR 94.20 lakh/MW for the solar PV component and INR 129.80 lakh/MW for the wind power component, on the last day of FY25 or at least seven days prior to bid submission deadline.
Additionally, the bidder must possess a minimum annual turnover of INR 90.20 lakh/MW of the quoted capacity during FY25 or at least seven days prior to bid submission deadline.
Further, the bidder must demonstrate internal resource generation capability, in the form of Profit Before Depreciation Interest and Taxes (PBDIT) for a minimum amount of INR 18.04 lakh/MW of the quoted capacity, on the last day of FY25 or at least seven days prior to bid submission deadline.
please contact: contact@energetica-india.net.
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