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SECI Solar Tenders 2026: The Complete Winning Bid Guide
SECI Solar Tenders 2026: Active Projects, Deadlines & How to Bid
Quick Answer
SECI solar tenders 2026 span utility-scale solar, rooftop RESCO tranches, solar-plus-storage, and hybrid or round-the-clock renewable projects — issued by the Solar Energy Corporation of India, the principal central renewable-energy implementing agency this year.
Active tenders, deadlines, and documents are published on the official SECI portal, and details change frequently through corrigenda. Always confirm a tender’s current status on seci.co.in before bidding.
If you build, supply, or develop solar in India, SECI is likely the single most important issuer to watch. In 2026 SECI was consolidated as the principal Renewable Energy Implementing Agency for new central procurement, which means a large share of the country’s solar opportunity now flows through its tenders. This guide covers what SECI is tendering in 2026, the active project types worth watching, the deadlines and eligibility that decide who qualifies, and a step-by-step view of how to bid — plus how to keep on top of the constant stream of updates.
Time-sensitive content. Specific tenders, capacities, and dates below are drawn from public reporting and are examples of the 2026 pipeline. SECI routinely revises deadlines and details through corrigenda, and some tenders will have closed by the time you read this. Treat this as a guide to how SECI solar tenders 2026 work, and confirm any live tender on the official SECI portal before acting.
Key Takeaways
- SECI is the dominant central solar issuer in 2026, running utility-scale, rooftop RESCO, storage, and hybrid/RTC tenders.
- Rooftop tenders use the RESCO model — the developer builds, owns, and operates, and sells power under a long (typically 25-year) PPA.
- EMD, PBG, and service charges are specified per project and vary by capacity and location — always read the exact figures.
- SECI tenders are published on seci.co.in and its e-bidding portal; all amendments are posted there.
- Corrigenda are frequent, often in waves around the pre-bid meeting and near the deadline — missing one can invalidate a bid.
- The winning edge is seeing the tender early and tracking every corrigendum, not just sharp pricing.
📑 Table of Contents
What Is SECI and Why It Matters in 2026
SECI (Solar Energy Corporation of India) is a Government of India enterprise under the Ministry of New and Renewable Energy, and in 2026 the principal Renewable Energy Implementing Agency for new central procurement. That role makes it the backbone of India’s solar auction market.
SECI’s mandate spans the full spectrum of solar and allied renewables: it runs large ISTS-connected utility-scale auctions, rooftop tenders under the RESCO model, solar-plus-storage and battery (BESS) tenders, and hybrid and round-the-clock (RTC) renewable auctions that combine solar with wind and storage. Because so much central capacity is now channelled through a single agency, understanding how SECI solar tenders 2026 are structured — and tracking them closely — is essential for anyone in the solar supply chain, from utility EPC majors to rooftop developers and module manufacturers.
Types of SECI Solar Tenders
SECI issues several distinct tender structures, and knowing which is which tells you the scope, risk, and who typically bids.
| Tender Type | What It Covers | Typical Bidder |
|---|---|---|
| Utility-scale (ISTS) | Large ground-mounted solar, often 100–2,000 MW blocks connected to interstate transmission | Large developers / EPC |
| Rooftop RESCO | Grid-connected rooftop PV on government/institutional buildings; developer owns & operates | Rooftop developers, RESCO investors |
| Solar + storage (BESS) | Solar paired with battery storage, or standalone storage at a solar site | EPC + storage integrators |
| Hybrid / RTC / FDRE | Solar combined with wind and storage for firm, round-the-clock or dispatchable supply | Large developers |
| Balance of System (BoS) | Everything except modules, which are supplied separately | EPC / electrical contractors |
Active SECI Solar Projects Worth Watching in 2026
These are illustrative of the SECI solar tenders 2026 pipeline. Confirm the current status, scope, and deadline of any tender on the official SECI portal before acting — several will have advanced or closed since publication.
1
RTSPV Tranche-XII — 5.29 MW Rooftop RESCO
Rooftop RESCOAn RfS (issued 27 July 2026, doc SECI/C&P/IPP/11/0007/26-27) to select developers for around 5,290 kW of grid-connected rooftop solar at eight government institutions — including IIT Mandi, BBAU Lucknow, and NIFT Srinagar — under the RESCO / Build-Own-Operate model, with 25-year PPAs. EMDs were set per project (highest around ₹19.8 lakh for IIT Mandi).
Why watch: a textbook example of SECI’s rooftop tranche series, ideal for RESCO developers. Verify the current window on the SECI portal.
2
Earlier RESCO Tranches (VIII, XI)
Rooftop RESCOSECI’s rooftop tranche series has run continuously through 2026 — for example a Tranche-VIII rooftop auction earlier in the year and a Tranche-XI RfS — each selecting developers for government-building rooftop solar across multiple states and UTs.
Why watch: the tranche cadence means a fresh rooftop opportunity appears regularly — register early and watch for the next.
3
Utility-Scale ISTS Solar Auctions
Utility ISTSSECI continues to run large ISTS-connected utility solar auctions in capacity blocks, where developers arrange land in solar parks or approved zones. These are the biggest-ticket SECI opportunities.
Why watch: the core of SECI’s mandate and the largest capacity on offer for utility developers.
4
Ground-Mounted BoS Packages
BoSSECI issues balance-of-system packages for ground-mounted projects — for example an 88 MW project at Chitradurga, Karnataka — letting contractors deliver the plant while modules are supplied separately.
Why watch: mid-sized utility work with SECI as a creditworthy counterparty and no module-supply risk.
5
Hybrid, RTC & Storage Tenders
Hybrid / StorageSECI increasingly tenders solar combined with wind and storage for round-the-clock or firm-and-dispatchable renewable supply, plus standalone BESS — the structural direction of the market.
Why watch: where central procurement is heading, with premium value for integrators who can deliver firm power.
Always use the official SECI portal for live details. SECI publishes tenders, amendments, and clarifications on seci.co.in and its e-bidding system, and final capacities on rooftop tenders are often confirmed at the PPA stage after site assessment. Confirm the tender search code, documents, and deadline there before you prepare a bid.
Understanding SECI Deadlines
SECI tenders run to a defined schedule — and every date on it is a potential disqualification point if you miss it. The sequence is broadly consistent across tenders.
| Milestone | What It Is |
|---|---|
| RfS / tender publication | The tender goes live on the SECI portal with the full document set. |
| Pre-bid meeting | Bidders raise queries; clarifications and often corrigenda follow. |
| Bid submission (online) | The online bid window closes — usually the binding cut-off. |
| Bid submission (offline, if any) | Any physical submission of documents/EMD, if required. |
| Bid opening | Technical bids are opened; qualified bidders proceed. |
| Post-award milestones | Letter of Award, then PPA signing (often within 30 days), net-metering, and commissioning windows. |
Deadlines move — and they move both ways. SECI often extends bid dates by corrigendum, but you cannot rely on an extension. Track every amendment, and prepare to the current deadline, not the one you first saw. Missing a submission or opening date almost always means disqualification.
Eligibility, EMD & Documents
SECI tenders carry sector-specific eligibility on top of standard financial and experience criteria, and the exact thresholds are set per tender. Read them precisely before committing.
- Experience & financial strength — similar solar project experience and turnover/net worth proportionate to the tender.
- Technical compliance — module, cell, and inverter specs, frequently referencing the ALMM list and BIS certification; DCR rules may apply.
- EMD (bid security) — specified per project/package, varying by capacity and location; see our EMD guide.
- PBG & service charges — performance bank guarantee and SECI service charges (per kW) payable before PPA signing on rooftop tenders.
- Corporate & statutory documents — registration, GST, PAN, audited financials, and any SPV shareholding conditions.
SECI tender intelligence
Track every SECI solar tender and corrigendum
Follow live SECI tenders — RESCO, utility, storage, hybrid — alongside NTPC, GeM, CPPP, and state DISCOMs in one dashboard, filtered by capacity, technology, and state, with real-time corrigendum alerts.
How to Bid on a SECI Solar Tender: Step by Step
Bidding on SECI is a disciplined, document-heavy process — and most rejections are procedural, not about capability. Follow this sequence for any SECI solar tender.
- Step 1 — Register on the SECI e-bidding portal and obtain a valid Class 3 Digital Signature Certificate.
- Step 2 — Select the right tender for your capacity, technology, and geography, and read the full RfS/RFP.
- Step 3 — Screen eligibility honestly against experience, financial, and technical criteria before investing effort.
- Step 4 — Attend the pre-bid meeting and raise queries; note that clarifications and corrigenda usually follow.
- Step 5 — Prepare the technical bid — documents, ALMM/BIS compliance, methodology, and key personnel; see our guide on technical vs financial bids.
- Step 6 — Arrange EMD and financial bid exactly as specified, and double-check the priced schedule.
- Step 7 — Check the latest corrigendum, then submit early on the portal, well before the closing time.
How to Track SECI Tenders & Corrigenda
SECI issues a constant stream of tenders and corrigenda, and staying on top of them manually is a genuine operational burden. Missing a single amendment can undo a strong bid.
SECI corrigenda commonly arrive in waves — right after the pre-bid meeting, mid-window, and often within 48 hours of the original deadline — and can change capacity, module or cell technology, ALMM list versions, EMD, or the deadline itself. Watching the portal for all of this on every tender you follow is realistically several hours a week and still leaks. The reliable approach is a tender aggregator that pulls SECI listings and corrigenda — alongside NTPC, GeM, CPPP, and state DISCOMs — into one dashboard filtered by capacity, technology, and state, with instant alerts when something changes. You still submit each bid on the official SECI portal; the aggregator handles discovery and tracking. For how these amendments work, see our guide on what a corrigendum in a tender is.
That combination — complete SECI coverage plus instant corrigendum alerts — is what TenderKosh is built around, so your team spends its time bidding rather than refreshing the portal.
Keep Exploring: Related Guides
- Solar EPC Tenders in India 2026 — the wider solar pipeline across all issuers.
- Top 10 Government Portals for Tenders in India — where solar tenders are published.
- What Is a Corrigendum in a Tender? — the amendment that quietly rejects bids.
- EMD in Government Tenders — bid security, exemption, and refund rules.
- Technical Bid vs Financial Bid — how the two-envelope system is evaluated.
Frequently Asked Questions
What is SECI and what does it tender?
SECI (Solar Energy Corporation of India) is a Government of India enterprise and, in 2026, the principal Renewable Energy Implementing Agency for new central procurement. It issues tenders for utility-scale solar, rooftop solar under the RESCO model, solar-plus-storage, and hybrid and round-the-clock renewable projects, published on the SECI portal and its e-bidding system.
How do I find active SECI solar tenders?
Active SECI tenders are listed on the official SECI website (seci.co.in) and its e-tendering portal, with notices, amendments, and clarifications posted there. You can also track them, along with corrigenda, through a tender aggregator that consolidates SECI listings with other portals. Always verify the current status and documents on the official SECI portal before bidding.
What is the RESCO model in SECI rooftop tenders?
Under the RESCO (Renewable Energy Service Company) model, the selected developer invests in, owns, operates, and maintains the rooftop solar plant and supplies electricity to the client institution under a long-term power purchase agreement, typically 25 years. The consumer avoids upfront capital cost and pays a per-unit tariff instead.
What EMD is required for a SECI solar tender?
EMD (bid security) in SECI tenders is specified per project or package in the tender document, often varying by capacity and location. It must be submitted exactly as stated. Always take the precise EMD amount, instrument, and validity from the specific SECI tender rather than assuming a standard figure.
Why do SECI tender deadlines change so often?
SECI frequently issues corrigenda that extend deadlines or revise capacity, technical specifications, ALMM requirements, or EMD, often in several waves around the pre-bid meeting and near the closing date. Because a missed corrigendum can invalidate a bid, tracking every amendment on the tenders you follow is essential.
The Bottom Line
SECI solar tenders 2026 are the single richest vein of central solar opportunity in India — but the process rewards discipline and vigilance as much as capability. Know which tender types fit your business, read eligibility and EMD terms precisely, bid to the current deadline, and never submit against out-of-date criteria.
Track SECI’s pipeline and its corrigenda closely, and you turn a fast-moving, easy-to-miss market into a steady flow of opportunities you’re positioned to win.
Note: Specific tenders, capacities, EMD figures, and dates referenced above are drawn from public reporting current at the time of writing and are subject to change through corrigenda or closure. Always confirm a tender’s live status, scope, and deadline on the official SECI portal, seci.co.in, and its e-bidding system before acting.
⚠️ Disclaimer — Please Verify Before Acting
This article is general information, not advice. It has been compiled from publicly available sources — government releases and notifications, official portals, published tender documents and trade reporting — and reflects our understanding at the time of writing. It is not legal, financial, tax or professional advice, and it does not create any advisory relationship.
Public procurement changes constantly. Tender terms, eligibility criteria, thresholds, fees, deadlines, scheme conditions and government policy are revised frequently, often through corrigenda issued mid-window and sometimes without wide notice. Figures and rules that were accurate when published may already have changed by the time you read this.
Always verify against the primary source before you act or bid. The tender document, the issuing authority's official portal and the relevant government notification are the authoritative sources. Where anything in this article differs from them, the official source prevails. Do not rely on this page — or on any third-party summary — as the basis for a bid, an investment or a compliance decision.
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