The Solar Energy Corporation of India Limited (SECI), a Government of India enterprise, has issued a new Request for Selection (RfS) for the development of 600 MW of Inter-State Transmission System (ISTS)-connected wind power projects across India. This tender, referred to as SECI-Tranche-XIX, represents another major step in India’s clean energy growth and aims to attract Wind Power Developers (WPDs) through a competitive tariff-based bidding process. The official RfS document, released on October 15, 2025, carries the reference number SECI/C&P/IPP/12/0013/25-26. SECI will act as the intermediary procurer for the power generated, which will be sold to the Punjab State Power Corporation Limited (PSPCL) under a long-term contract.
Tender Capacity
The tender has the entire capacity of 600 MW and a possible extension of 300 MW at the option of the “Greenshoe Option.” The developers who are selected will have to implement the projects on a Build Own Operate (BOO) basis. A Power Purchase Agreement (PPA) will be used to run each project and will be a 25-year contract to ensure stability and predictability of revenue. The projects should be linked to ISTS and can be in any part of India, and this gives the bidders the option of choosing the site depending on the availability of resources and logistics.
Requirements
The tender requirements are that each party should be offering a minimum capacity of 50 MW, and up to 300 MW should be assigned to any one corporate group. The bidding system will be of a single-stage, two-envelope type, and then the tariff will be finalized through an e-reverse auction (e-RA). This will ensure transparency and market- and value-based tariff determination. The developers must ensure that the Capacity Utilization Factor (CUF) is at least 22% per annum and that the supply of energy is between 80 and 120 percent of the stated or updated Capacity Utilization Factor (CUF) during the entire duration of the 25-year contract. This provides a stable and effective performance of the project during its working term.
Included in the major financial commitments in this RfS is participation. The non-refundable fee of the RfS document is INR 50,000 and the GST. The Earnest Money Deposit (EMD) is determined as INR 13,32,000 / MW / project and can be presented in the form of a bank guarantee, a payment on order instrument either by REC or PFC, or in the form of an insurance surety bond. These conditions only allow serious and financially stable people to participate.
After Selection
After being selected, the successful bidder is required to give a Performance Bank Guarantee (PBG) in the amount of INR 3,330,000 per MW per project before the signature of the PPA. This is an assurance that ensures project implementation and adherence to tender requirements. It is also important that developers apply to be grid connected within 30 days following the effective date of the PPA, which is one of the milestones of the project implementation. The nonfulfillment of the financial closure or the fulfillment of other commitments during the stipulated timelines may lead to the cashing out of the PBG.
The dates of submission of bids and opening of technical bids will be announced in the Notice Inviting Tender (NIT) on the ISN-ETS portal. SECI will inform all qualified bidders of the date and time of the e-Reverse Auction by passing through technical and commercial tests. The bids will be genuine up to 12 months of the deadline of submission. The tender is a renewal of the commitment by SECI to increase the capacity of renewable energy in India and to further the transition of this nation to sustainable and clean energy power production.





