NTPC Green Energy Limited (NGEL) has issued a notice for an upcoming Invitation for Bids (IFB) for the supply of battery containers and grid-forming Power Conversion Systems (PCS) for a 10 GW/40 GWh Battery Energy Storage System (BESS) portfolio across various project locations. The procurement will be conducted through International Competitive Bidding (ICB).

The notice, dated November 3, 2026, carries IFB reference number NGEL-CS-5853-004(BESS)-9 and outlines the proposed procurement scope, including battery system supply, commissioning supervision and long-term maintenance services.

Key Highlights of NGEL’s 10 GW/40 GWh BESS Tender

Total BESS Capacity: 10 GW/40 GWh
Battery Technology: Lithium Iron Phosphate (LFP)
Power Conversion System: Grid-forming PCS
Project Locations: Various projects across NGEL’s portfolio
Maintenance Period: 15 years from commissioning of each project
Bidding Method: International Competitive Bidding
Tender Status: Upcoming Invitation for Bids

Scope of Work Covers Battery Supply and Commissioning

Under the proposed procurement, NGEL intends to engage eligible bidders for the supply of LFP-based containerised battery systems integrated with grid-forming PCS. The scope also includes supervision of erection, installation and commissioning activities at project sites up to the PCS output terminals.

The key components of the proposed contract include:

Battery System Supply: Supply of LFP-based containerised battery systems.
Grid-Forming PCS: Supply of grid-forming Power Conversion Systems alongside battery containers.
Installation and Commissioning: Supervision of erection, installation and commissioning at project sites up to PCS output terminals.
Long-Term Service Agreement (LTSA): Comprehensive service and maintenance for 15 years from the commissioning date of each project.

Bidding Documents to Be Issued on NTPC Tender Portal

NGEL stated that the detailed Invitation for Bids will be issued at a later date through its online tendering platform. Interested bidders have been advised to regularly check the official portal for updates regarding the tender schedule and bidding documents.

NTPC Tender Portal: ntpctender.ntpc.co.in
ETS Portal: bharat-electronictender.com
Bidding Platform: Online bidding
Registration Requirement: Interested bidders must register with ISN Electronic Tender Services (ETS), if not already registered.

Foreign bidders are required to possess a Class III Digital Signature issued by an Indian Certifying Authority, as specified in the notice.

The notice does not specify the bid submission deadline, project-wise capacity allocation, estimated procurement value or the final bidding schedule. These details are expected to be available in the detailed Invitation for Bids.

Capacity

10 GW/40 GWh