India’s battery energy storage system (BESS) market is witnessing intense competition as developers bid for multi-gigawatt storage projects. Major 2026 auctions by Gujarat Urja Vikas Nigam Limited (GUVNL), Maharashtra State Electricity Distribution Company Limited (MSEDCL) and West Bengal utilities have established new capacity tariff benchmarks, while additional tenders from SECI and other agencies are expanding investment opportunities.
Winning tariffs for selected two-hour standalone BESS projects ranged from approximately ₹2.32 lakh to ₹2.40 lakh per MW per month in 2026. A four-hour storage project in West Bengal secured a tariff of ₹4.35 lakh per MW per month.
However, lower tariffs do not automatically translate into higher profitability. Battery procurement costs, financing, charging arrangements, degradation, performance guarantees and government subsidies determine actual investment returns.
GUVNL BESS Tender: NLC India and KP Group Win 450 MW
Gujarat Urja Vikas Nigam Limited awarded 450 MW/900 MWh of standalone battery energy storage capacity in August 2026.
NLC India Renewables secured 275 MW/550 MWh at a capacity tariff of ₹2,31,989 per MW per month.
Sun Drops Energia, part of KP Group, won 175 MW/350 MWh at ₹2,31,990 per MW per month.
The projects require two hours of battery storage capacity.
GUVNL will supply charging electricity, while developers are responsible for establishing battery systems and grid connectivity.
The tender specifies 95 percent annual availability and 85 percent monthly AC-to-AC round-trip efficiency.
At the awarded tariff, NLC India’s 275 MW allocation represents approximately ₹6.38 crore in gross monthly capacity payments, subject to contractual conditions.
Sun Drops Energia’s 175 MW allocation represents approximately ₹4.06 crore monthly.
These payments are not equivalent to project profit because developers must finance equipment, operations, maintenance and battery replacement obligations.
MSEDCL BESS Tender: Oriana Power Leads 2,000 MW Auction
Maharashtra State Electricity Distribution Company Limited awarded 2,000 MW/4,000 MWh of battery storage capacity in September 2026.
The discovered capacity tariffs were ₹2.38 lakh per MW per month for 1,500 MW and ₹2.40 lakh for the remaining 500 MW.
The storage service agreements have a 15-year duration.
Oriana Power emerged as the largest winner, securing 900 MW/1,800 MWh.
Other successful bidders included BSL Engineering Service, ArMee Infotech, GK Energy, Stockwell Solar Services and Claro Energy.
Oriana’s awarded contracts were valued at approximately ₹3,870 crore, with estimated viability gap funding support of ₹324 crore.
At ₹2.38 lakh per MW per month, a hypothetical 100 MW allocation would generate ₹2.38 crore in gross monthly capacity payments.
Annual contracted revenue would reach approximately ₹28.56 crore before performance adjustments and operating expenses.
MSEDCL’s auction demonstrates the growing scale of India’s battery storage procurement market, with developers competing for projects requiring substantial upfront investment.
West Bengal BESS Tender: NTPC Green Energy Wins 800 MWh
NTPC Green Energy secured 200 MW/800 MWh of battery storage capacity in West Bengal State Electricity Distribution Company Limited’s tender in August 2026.
The winning capacity tariff was ₹4.35 lakh per MW per month.
Unlike the Gujarat and Maharashtra projects, the West Bengal system provides four hours of storage.
At the awarded tariff, the project represents approximately ₹8.70 crore in gross monthly capacity payments.
Annual capacity revenue could reach ₹104.40 crore, subject to availability and contractual requirements.
The higher monthly tariff reflects a different storage duration and procurement structure.
A four-hour battery requires twice the energy capacity of a two-hour system with the same MW rating.
Investors should therefore compare tariffs on a duration-adjusted basis rather than treating the West Bengal price as directly equivalent to two-hour project tariffs.
SECI Launches 800 MW/3,200 MWh Battery Storage Tender
The Solar Energy Corporation of India (SECI) launched a major four-hour standalone battery storage tender in October 2026.
The project covers 800 MW/3,200 MWh of interstate transmission system-connected storage capacity.
Under the build-own-operate model, selected developers will establish and operate battery storage projects.
According to the official SECI tender announcement, online bid submission closes on October 30, 2026, with bid opening scheduled for November 4.
The tender requires an earnest money deposit of approximately ₹7.184 lakh per MW and a performance bank guarantee of ₹17.96 lakh per MW.
For a hypothetical 100 MW allocation, these requirements translate into approximately ₹7.18 crore in earnest money and ₹17.96 crore in performance security.
Unlike the completed GUVNL and MSEDCL auctions, this tender had not produced confirmed winning tariffs as of October 29, 2026.
More Battery Storage Tenders: Gujarat, Telangana and SECI
Additional procurement activity demonstrates the expansion of India’s battery storage market beyond completed auctions.
GUVNL has pursued a separate 1,000 MW/4,000 MWh four-hour battery storage procurement programme in Gujarat.
A 188 MW/750 MWh battery storage procurement associated with Power Grid Corporation of India in Telangana provides another example of four-hour storage development.
These projects were listed as awaiting results in an October 2026 tender tracker. Their winning developers and tariffs should not be treated as confirmed without official award announcements.
SECI also issued a separate tender in August 2026 for short-term utilisation of a 50 MW/100 MWh standalone energy storage system.
This procurement differs from conventional long-term capacity contracts because it focuses on short-term storage utilisation.
Another important development is SECI’s 1,200 MW renewable energy tender requiring 4,800 MWh of assured peak supply over four hours.
The tender illustrates how battery storage is increasingly being incorporated into renewable electricity supply contracts rather than procured exclusively as standalone capacity.
SECI has also identified a proposed 1,000 MW solar project combined with 1,000 MW/4,000 MWh of energy storage at Pang in Ladakh. The agency announced a prospective bidder site visit in October 2026.
These developments indicate opportunities for battery manufacturers, EPC contractors, power conversion suppliers and storage developers. However, proposed projects, open tenders and completed auctions represent different stages of investment commitment.
Why Two-Hour and Four-Hour BESS Tariffs Differ
Battery storage duration directly affects project investment requirements.
A 100 MW/200 MWh battery provides two hours of discharge at rated power.
A 100 MW/400 MWh system provides four hours of discharge but requires twice the nominal energy capacity.
Longer-duration projects generally require additional battery modules, associated equipment and potentially higher augmentation expenditure.
Consequently, the ₹4.35 lakh tariff secured by NTPC Green Energy cannot be directly compared with the approximately ₹2.32 lakh tariffs discovered in Gujarat.
Investors should compare the total installed cost, guaranteed energy delivery, operating requirements and financing structure.
Battery Storage Project Economics: Revenue vs Profit
Consider a hypothetical 100 MW battery storage project receiving ₹2.32 lakh per MW per month.
The project would generate gross monthly capacity revenue of ₹2.32 crore.
Annual capacity revenue would reach approximately ₹27.84 crore, assuming full payment eligibility.
Over 15 years, undiscounted gross contracted revenue would total approximately ₹417.60 crore.
However, these figures exclude equipment investment, financing, insurance, maintenance, degradation and battery augmentation.
Charging electricity is another important consideration.
A 200 MWh battery completing two full discharge cycles daily would deliver approximately 12 million kWh over 30 days.
At 85 percent round-trip efficiency, charging requirements would reach approximately 14.12 million kWh.
At an illustrative electricity price of ₹2.50 per kWh, monthly charging expenditure would be approximately ₹3.53 crore.
Actual financial responsibility depends on the tender structure. In some contracts, the procuring utility supplies charging electricity.
Battery Prices Threaten Developer Profitability
Battery procurement prices represent a major risk for developers bidding aggressively in competitive auctions.
CRISIL Ratings expects approximately 45–50 GWh of battery storage capacity to be commissioned during FY2027 and FY2028, compared with around 1 GWh by the end of FY2026.
Its September 2026 assessment identified approximately 8–9 GWh of awarded capacity facing elevated commissioning-delay risks.
Around 12 GWh of under-construction capacity could face pressure on investment returns.
Battery price increases, financing costs and delayed procurement can weaken project economics because capacity tariffs are generally fixed under long-term contracts.
The CRISIL Ratings assessment of India’s battery storage market highlights the challenges facing developers targeting internal rates of return of approximately 12–14 percent.
Government VGF Support for Battery Storage Projects
India’s viability gap funding programmes support approximately 43.8 GWh of battery storage capacity.
The first programme covers 13.8 GWh within a ₹3,760 crore budget.
The second programme supports 30 GWh through ₹5,400 crore of funding.
A July 2026 government update reported that 12.7 GWh under the first programme had signed purchase agreements.
Approximately 6.54 GWh had achieved financial closure, while 0.5 GWh had been commissioned.
Under the second programme, 22.43 GWh had received letters of award and 19.65 GWh had signed agreements.
VGF can improve project viability but cannot eliminate equipment-price risks, construction delays or operating-performance problems.
Which Developers Are Best Positioned?
The 2026 auction results demonstrate the growing participation of public-sector companies and private renewable energy developers.
NLC India Renewables and NTPC Green Energy have secured significant storage allocations.
Oriana Power has emerged as a major private-sector winner through its 900 MW Maharashtra allocation.
Sun Drops Energia, BSL Engineering Service, ArMee Infotech, GK Energy, Stockwell Solar Services and Claro Energy also illustrate the widening competitive landscape.
India BESS Market Outlook: Execution Becomes the Key Challenge
India’s 2026 battery storage auctions demonstrate substantial demand for two-hour and four-hour storage capacity.
GUVNL’s approximately ₹2.32 lakh monthly capacity tariff and MSEDCL’s ₹2.38–₹2.40 lakh range provide important benchmarks for selected two-hour projects.
West Bengal’s ₹4.35 lakh tariff illustrates the different economics of four-hour storage.
Additional procurement by SECI, Gujarat and other agencies will expand the development pipeline.
However, the most competitive battery storage projects will be those that convert low winning tariffs into financially sustainable operating assets.
SHAFANA FAZAL
