If you have decided to bid a battery energy storage system (BESS) tender in India, the first hurdle is not price. It is eligibility. Before your quote is even opened, the buyer checks whether your company is financially strong enough, technically qualified, and carrying the right documents and deposits. Fail any one gate and your bid is rejected as non-responsive, no matter how sharp your number.
This is a practical checklist of what an Indian BESS tender asks for. It is a companion to our walkthrough on how to read and bid a BESS tender — that article covers the bidding process; this one focuses only on the eligibility criteria and the document set. Figures below come from real 2025-26 rounds by SECI (Solar Energy Corporation of India), GUVNL (Gujarat Urja Vikas Nigam) and NVVN (NTPC Vidyut Vyapar Nigam). Numbers differ per tender, so treat them as benchmarks and always read the live Request for Selection (RfS).
The three gates every bid must pass
Most BESS tenders screen you in a fixed order. Clear the financial gate, then the technical gate, then the statutory gate. Only bids that pass all three go to price evaluation.
1. Financial eligibility
The buyer wants proof you can fund the project without collapsing. Three tests do most of the work.
- Net worth per MW. This is the headline number. Recent rounds have set it from about ₹74 lakh/MW (GUVNL’s 335 MW round) to ₹90 lakh/MW (SECI’s 125 MW Odisha round) up to about ₹1.45 crore/MW on some NVVN (NTPC) tenders. Net worth is usually tested as on the last day of the previous financial year, or within seven days of bid submission, and must be certified by a chartered accountant.
- Minimum average annual turnover. Some tenders add a turnover floor. One NVVN standalone BESS round asked for average annual turnover of about ₹2.92 crore/MW across the preceding three financial years. Where a tender omits turnover, net worth alone carries the financial gate.
- Credit rating or bank standing. Larger tenders may ask for an investment-grade credit rating or a banker’s solvency certificate. Keep audited financials for the last three years ready — they are the backbone of every financial claim.
2. Technical qualification and experience
The buyer wants proof you can actually build and run storage. There are usually two routes to qualify, and meeting either is enough.
- Generation experience. Having commissioned conventional or renewable power projects — for example, 1 MW of commissioned capacity per 1 MW/2 MWh of BESS you bid — is a common route. This lets solar and wind developers cross over into storage.
- Storage experience. Alternatively, having commissioned standalone or co-located BESS of a minimum size (GUVNL rounds have accepted 10 MWh of built BESS) qualifies you directly.
If your own track record is thin, you can lean on an equipment supplier or a technology partner. Our standalone BESS solution and the enclosures behind it — from the 20-foot container block to the grid block — are built to back exactly this kind of qualification, and the manufacturing line supplies the commissioning evidence buyers ask for.
3. The money instruments
Four cash or guarantee items appear in almost every BESS tender. Miss the deadline on any and you are out.
| Instrument | What it is | Recent benchmark |
|---|---|---|
| Tender document fee | Non-refundable fee to access the RfS | ≈₹20,000 (SECI Odisha) |
| Bid processing fee | Per-MW fee, often capped | ≈₹20,000/MW, cap ≈₹15 lakh (SECI) |
| EMD / bid security | Earnest money deposit, refunded to losers | ₹5 lakh/MW (GUVNL) to ≈₹9 lakh/MW (SECI, NVVN) |
| Performance bank guarantee (PBG) | Posted by the winner before signing | ₹12.5 lakh/MW (GUVNL) to ≈₹22.5 lakh/MW (SECI) |
The EMD (earnest money deposit) is your good-faith stake; it is returned if you lose but forfeited if you win and walk away. The PBG (performance bank guarantee) is larger and posted only after you win, before signing the BESS purchase agreement. Both are usually bank guarantees in a prescribed format — arrange your banking lines early, because a wrongly worded guarantee is a rejection.
4. Statutory and legal documents
These prove the bidding entity is real and properly authorised. Assemble them into a single, indexed pack.
- Certificate of incorporation and Memorandum and Articles of Association.
- PAN (Permanent Account Number) and GST (Goods and Services Tax) registration.
- Board resolution authorising the bid and naming the signatory.
- Power of attorney for the person signing the documents.
- Audited financial statements and the CA-certified net-worth statement.
- Self-declarations: no blacklisting, no conflict of interest, and acceptance of RfS terms.
5. Consortium rules
If you bid as a consortium rather than a single company, the tender sets extra conditions. Typically one member is named the lead and must hold a minimum equity stake — often 26 percent or more — through the contract term. A joint bidding agreement and a joint-and-several liability undertaking are usually mandatory, and the consortium’s combined net worth and experience are counted against the eligibility thresholds. Read the ownership lock-in clause carefully; it restricts selling your stake for a set period after commissioning.
Land, connectivity and commissioning
Beyond the paperwork, the tender defines the physical obligations you are signing up to.
- Commissioning timeline. Recent SECI rounds require full commissioning within 18 months of the BESS purchase agreement, down from 24 months earlier.
- Land and connectivity. You are generally responsible for arranging land and grid connection, though some state and FDRE-style tenders specify the connection point.
- VGF cap. In viability-gap-funded rounds, the VGF (viability gap funding) is capped — the SECI Odisha round limited it to ≈₹18 lakh/MWh, and the wider scheme benchmarks fall near ₹18–27 lakh/MWh or 30 percent of capital cost, whichever is lower.
What this means for you
Eligibility is a gate, not a race. Work through the five buckets — financial, technical, money instruments, statutory papers, consortium terms — well before the deadline, because the slow items (net-worth certification, bank guarantees, board resolutions) cannot be rushed at the end. Map each RfS clause to a document owner, and treat the per-MW net worth and PBG as the two figures that most often decide whether smaller developers can bid alone or need a partner.
Tenders change by notification, and every figure here differs by round — always verify against the current live RfS before committing capital. When you are ready to size the deposits and returns against a real project, talk to us through the contact page or model it first on the BESS savings calculator.
Policy snapshot as of July 2026. Eligibility thresholds, EMD/PBG amounts and VGF caps change by SECI, GUVNL and state notification; verify the current Request for Selection before financial decisions.