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NTPC Vidyut Vyapar Nigam Invites Bids for 125 MW/500 MWh Standalone BESS Project in Chhattisgarh

NTPC Vidyut Vyapar Nigam has invited bids to develop a 125 MW/500 MWh standalone BESS project at Durg, Chhattisgarh, under the BOO model with VGF support. Bid submission ends on December 30, 2025.

December 05, 2025. By Mrinmoy Dey

NTPC Vidyut Vyapar Nigam (NVVN) has floated a tender for setting up 125 MW/500 MWh STU-connected standalone Battery Energy Storage Systems (BESS) in Chhattisgarh.

Under the Build-Own-Operate (BOO) model, the selected developer will deploy a 4-hour duration battery system at the Khedamara 220 kV Substation (Durg) with complete responsibility for design, engineering, installation, and O&M.

The project will be eligible for viability gap funding (VGF) support of up to 18 lakh/MWh.

Bidders need to deposit INR 15 lakh (plus GST) as a bid document processing fee. Further, they need to furnish INR 8.80 lakh/MW as an earnest money deposit (EMD). Selected bidders need to deposit INR 22 lakh/MW as a performance bank guarantee (PBG) to Chhattisgarh State Power Distribution (CSPDCL), prior to signing BESPA.

The last date for submission of bids is December 30, 2025. The techno-commercial bids will be opened on December 31, 2025.

The bid size must be quoted as 125 MW X 4 hrs (500MWh).

CSPDCL will enter into a BESPA with the successful bidder.

The BESSD shall be required to set up a BESS, with the primary objective of making the energy storage facility available to CSPDCL for charging/discharging of the BESS, on an ‘on demand’ basis.

Setting up of the BESS and interconnection of the BESS with the STU network will be under the scope of the BESSD. The construction of Bay is in the scope of Chhattisgarh State Power Transmission Company (CSPTCL).

CSPDCL will provide required power for charging BESS. Scheduling of charging and discharging of BESS shall be under the scope of CSPDCL

For project size of 125 MW/500 MWh, approximately 10-acre of land will be allotted to the BESSD.

The BESSD must make the BESS available for single operational cycle per day. The BESSD must guarantee a minimum system availability of 95 percent on a monthly basis.

The net worth of the bidder must be at least INR 88 lakh/MW as on the last day of the previous financial year. Net worth must be positive for preceding three financial years prior. Additionally, the bidder must possess a minimum average annual turnover of INR 2.92 crore/MW, during the preceding three financial years.

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Energy Storage

NTPC Vidyut Vyapar Nigam

NVVN invites bids

NVVN BESS tender

Standalone BESS tender

BESS projects in Chhattisgarh