NTPC Renewable Energy Limited (NTPC REL) has issued an Invitation for Bids (IFB) for the Inter-Connecting Transformer (ICT) package associated with a 900 MW solar project in Mandsaur, Madhya Pradesh. This procurement is part of the augmentation of transformation capacity at the Mandsaur Power Station (PS). The bidding process is conducted through domestic competitive bidding using a single-stage, two-envelope system. The deadline for bid submission is scheduled for May 27, 2026, at 14:00 IST.
Technical Scope and Equipment Specifications
The technical requirements for this package involve the augmentation of transformation capacity at Mandsaur PS, specifically requiring:
- Two (2) 500 MVA, 400/220/33 kV three-phase ICT auto transformers.
The units are to be terminated at 400 kV Bus Section-II and 220 kV Bus Section-III of the Mandsaur PS. The comprehensive scope of work includes the design, engineering, manufacturing, supply, testing, and commissioning of the transformers and associated accessories. Bidders are also required to provide the following auxiliary systems and maintenance equipment:
- Fire protection systems.
- Advanced monitoring equipment, including online Dissolved Gas Analysis (DGA) analyzers.
- Maintenance tools such as insulation testers and oil purification systems.
The scope mandates full routine and type testing. Additionally, a mandatory dynamic short-circuit test must be conducted on one transformer unit to verify performance under grid fault conditions.
Bidding Eligibility Criteria
| Category | Requirement |
| Technical Requirements | Bidders must have supplied at least one 400 kV or higher voltage class transformer with a minimum capacity of 500 MVA. Alternatively, bidders may qualify if they possess established in-house manufacturing and design facilities for equipment of this class and capacity. |
| Financial Requirements | Bidders must have an average annual turnover of at least INR 44 crores during the last three financial years. The bidder’s net worth must be equal to or greater than 100% of its paid-up share capital. |
| Regulatory Compliance | Participation is strictly restricted to “Class-I local suppliers” as defined under the Government of India’s Make in India initiative. |
Submission Info and Administrative Timeline
The administrative schedule and submission requirements for the ICT package are as follows:
- Document Download Period: April 29, 2026, to May 12, 2026 (until 17:00 IST).
- Pre-bid Conference: May 13, 2026, at 11:30 IST.
- Deadline for Bidder Queries: May 13, 2026, until 18:00 IST.
- Bid Submission Deadline: May 27, 2026, at 14:00 IST.
- Techno-Commercial Bid Opening: May 27, 2026, at 15:00 IST.
Bidders are required to submit an Earnest Money Deposit (EMD) of INR 1 crore as bid security. Access to the full bidding documents requires registration on the ISN Electronic Tender Services (ETS) portal and the submission of a signed Non-Disclosure Agreement (NDA).
A specific condition of the tender requires a short-circuit test bank guarantee equivalent to 10% of the contract value. This guarantee applies to bidders who have not previously successfully conducted a dynamic short-circuit test on similar equipment.
Leave a Comment