Gujarat Urja Vikas Nigam Limited (GUVNL) — the state holding company for Gujarat’s power utilities — has become one of India’s most active buyers of grid-scale battery storage. It does this not through a single mega-tender but through a series of standalone-BESS (battery energy storage system) auctions, numbered as phases. If you are a developer, EPC firm or manufacturer weighing a bid, the mechanics repeat closely from phase to phase, so learning one teaches you most of the rest. This is the practical companion to our broader Gujarat BESS policy overview.
The shape of a GUVNL BESS tender
Every phase follows the same skeleton:
- A base capacity plus a greenshoe option. GUVNL floats a headline size, then reserves the right to expand it if bidding is strong. The Phase IV tender, for example, opened at 400 MW/800 MWh with a greenshoe of another 400 MW/800 MWh, and was ultimately awarded at 500 MW/1,000 MWh.
- Two-hour storage. Almost all GUVNL phases specify a 2-hour system (so 1 MW of power carries 2 MWh of energy) capable of two full charge-and-discharge cycles per day.
- Build-own-operate. Winners build the BESS in Gujarat, connect it to the GETCO intra-state transmission network, and make the capacity available to GUVNL on demand. Charging and dispatch follow instructions from the State Load Despatch Centre (SLDC).
- A 12-year contract. The battery energy storage purchase agreement (BESPA) runs for 12 years.
The money: capacity charge plus VGF
Two levers set the economics, and it helps to keep them separate.
The capacity charge is what bidders actually compete on. It is quoted in rupees per MW per month, and the auction is a reverse auction — the lowest quote wins, subject to the capacity on offer. This is a fixed availability payment, not a per-unit energy tariff; GUVNL pays for having the battery ready to charge and discharge on command.
The Viability Gap Funding (VGF) is a one-time central capital grant that sits on top. It shrinks the capex a developer must finance, which is precisely why the quoted capacity charges have fallen so far. Under the phases that carried VGF, the grant was capped at ₹2.7 million (₹27 lakh) per MWh or 30 percent of project capital cost, whichever is lower. Our VGF scheme explainer walks through how that grant is structured nationally.
What the tariffs have done
The trend is the headline story for any bidder building a business case:
| Phase | Capacity awarded | Lowest capacity charge | Notes |
|---|---|---|---|
| Phase IV | 500 MW / 1,000 MWh | ~₹2.26 lakh/MW/month | First phase with VGF; ~39% below prior BESS tenders |
| Phase VII | ~1,665 MW / ~3.33 GWh | ~₹1.85–1.89 lakh/MW/month | Among the lowest discovered in India |
| Phase VIII | 335 MW / 670 MWh | Bidding round | 2-hour cycles, VGF support |
Phase VII drew heavy competition — multiple developers such as Sun Drops Energia, Engie and others shared the award — and its winning quotes of roughly ₹1.85 lakh per MW per month (about $2,220–2,268) rank among the lowest storage prices discovered anywhere in India. For context on how these compare nationally, see our SECI standalone-storage tenders explainer.
The qualification bar
GUVNL’s tenders are open, but not casual. In a representative recent phase the bar looked like this:
- Net worth: a minimum of roughly ₹7.4 million (₹74 lakh) per MW of quoted capacity, proven from the last financial year or shortly before bid submission.
- Experience: having commissioned at least 10 MWh of BESS, or at least a 1 MW conventional or renewable project, plus transmission-line or substation experience (765 kV down to 66 kV) with cumulative project cost of at least ₹1 billion (₹100 crore).
- Earnest money deposit (EMD): around ₹5 lakh (₹500,000) per MW, plus a tender fee near ₹29,500.
- Performance bank guarantee (PBG): roughly ₹1.25 million (₹12.5 lakh) per MW once selected.
These numbers scale with the capacity you quote, so a serious 100 MW bid implies a materially larger balance sheet and guarantee stack than a 20 MW one. Exact thresholds move phase to phase, so always read the live request-for-selection document.
How to prepare a bid, in order
- Confirm the phase is live and read the RfS. Track upcoming and open phases on our tender tracker.
- Size your quote against your balance sheet. Net worth, EMD and PBG all scale per MW — decide how much capacity you can genuinely back.
- Lock your supply chain and land early. The clock to commissioning is tight, and a firm on cells, containers and the intra-state connection point de-risks your bid. Alpha Devraj ESS supplies standalone-BESS systems built for exactly this duty.
- Model the capacity charge with VGF baked in. The grant lowers the capex you finance; your winning quote should reflect that, not your gross cost.
- File EMD, tender fee and documents before the deadline. Late or short submissions are simply rejected.
What this means for you
For developers and EPC firms, GUVNL is arguably the most predictable large storage buyer in India: the phases recur, the terms are stable, and the VGF makes the arithmetic work. The trade-off is a falling price floor — each phase tends to clear lower than the last, so your cost base and financing have to be genuinely competitive, not just adequate. For manufacturers and integrators, the repeat cadence is an opportunity to standardise a product around the 2-hour, two-cycle GUVNL duty cycle and bid phase after phase.
Whether you are quoting capacity for the next GUVNL round or sizing a private storage project, getting the numbers right early is what wins. Talk to our team through the contact page to scope a GUVNL-ready BESS build.
One caution: tenders change by notification. Capacities, greenshoe sizes, VGF caps, net-worth thresholds and deadlines are all revised phase to phase and sometimes mid-tender by amendment, so treat every figure here as indicative and verify against the current request-for-selection before you commit money.
Policy snapshot as of July 2026. Terms change by notification; verify current provisions before financial decisions.