NTPC Green Energy Floats Global Tender for 10 GW/40 GWh Battery Storage Projects; Bids Invited for 40.58 GWh Capacity
According to the NTPC tender portal, the Notice Inviting Tender (NIT), numbered NGEL-CS-5853-004(BESS)-9, was issued on November 9, 2026
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NTPC Green Energy Limited (NGEL), the renewable energy arm of NTPC Limited, has invited global bids for the supply of battery containers and grid-forming Power Conversion Systems (PCS) for its ambitious 10 GW/40 GWh Battery Energy Storage System (BESS) programme.
The tender covers a total deliverable storage capacity of approximately 40.58 GWh and marks a significant step in NTPC Green Energy’s efforts to expand large-scale energy storage infrastructure in India.
The procurement involves lithium iron phosphate (LFP)-based containerised battery systems integrated with grid-forming power conversion systems. The selected contractors will be responsible not only for equipment supply but also for supervising installation, erection and commissioning at project sites up to the PCS output terminals.
An important feature of the tender is the provision for comprehensive servicing and maintenance for 15 years from the commissioning date of each project under a Long-Term Service Agreement (LTSA).
40.58 GWh Capacity Divided into Three Phases
The procurement has been structured into seven blocks across three phases. Bidders are permitted to participate in one, multiple or all blocks.
The capacity breakdown is as follows:
| Phase | Block capacities |
|---|---|
| Phase 1 | 4.98 GWh, 6.60 GWh and 5.84 GWh |
| Phase 2 | 4.56 GWh |
| Phase 3 | 5.80 GWh, 6.80 GWh and 6.00 GWh |
| Total | 40.58 GWh |
The minimum bidding requirement is one complete block, with partial-block bids not permitted.
The tender has been issued under international competitive bidding, opening the procurement to eligible global suppliers.
Bids to Close on December 8
According to the NTPC tender portal, the Notice Inviting Tender (NIT), numbered NGEL-CS-5853-004(BESS)-9, was issued on November 9, 2026.
Key tender dates are:
- Tender document sale begins: November 12, 2026
- Document sale closes: November 23, 2026
- Pre-bid conference: November 24, 2026
- Last date for submission of bids: December 8, 2026, 3:00 PM
- Opening of techno-commercial bids: December 8, 2026, 3:30 PM.
Separate 250 MW Battery Storage Tender for Kayamkulam
In a parallel development, NTPC Green Energy has also invited bids for the Balance of System (BoS) package for a 250 MW/1,000 MWh battery energy storage project at NTPC Kayamkulam in Kerala.
The turnkey package covers design, engineering, supply of associated equipment, transportation, construction, erection, testing and commissioning of the grid-connected battery storage project.
The supply of battery DC containers and grid-forming PCS is excluded from this particular package.
The Kayamkulam tender represents a separate procurement from the larger 10 GW/40 GWh battery storage programme.
Strengthening India’s Energy Storage Infrastructure
The large-scale procurement comes at a time when battery energy storage is emerging as a critical component of India’s renewable energy transition.
Solar and wind power generation is inherently variable, creating a need for storage infrastructure that can absorb electricity when generation is high and release it when demand rises or renewable generation falls.
Battery Energy Storage Systems can help address this challenge by supporting grid stability, balancing supply and demand, and improving the integration of renewable energy into the electricity network.
For NTPC Green Energy, the proposed 40.58 GWh procurement represents a major expansion into utility-scale energy storage. The 15-year maintenance commitment also underlines the importance of long-term battery performance and operational reliability.
The tender could create significant opportunities for battery manufacturers, power conversion system suppliers, technology providers and engineering companies participating in India’s rapidly expanding energy storage market.
