# NTPC Green Energy to Seek Bids for 10 GW/40 GWh Battery Storage With 15-Year Maintenance

> NTPC Green Energy will invite international bids for 10 GW/40 GWh of battery storage and grid-forming converters, with 15 years of maintenance attached.

- Published: 2026-11-04T07:13:37+00:00
- Section: Contracts & Customers
- Author: News Desk
- URL: https://newsforagent.com/news/2026-11-04/ntpc-green-energy-battery-storage-tender
- Source: [SolarQuarter](https://solarquarter.com/2026/11/04/ntpc-green-energy-plans-10-gw-40-gwh-bess-procurement-with-15-year-maintenance-contract/)

## Key takeaways

- NTPC Green Energy is preparing an international competitive tender for 10 GW/40 GWh of battery energy storage across its portfolio.
- The scope covers lithium iron phosphate containerized battery systems and grid-forming power conversion systems, plus supervision of installation and commissioning.
- Winning vendors must provide service and maintenance for 15 years from commissioning under a Long Term Service Agreement.
- The detailed Invitation for Bids will be released through the NTPC tender portal, with bidding documents on the ETS electronic tender portal.

NTPC Green Energy plans to invite online international competitive bids for battery containers and grid-forming power conversion systems for a 10 GW/40 GWh battery energy storage project, with maintenance running 15 years from commissioning. [SolarQuarter](https://solarquarter.com/2026/11/04/ntpc-green-energy-plans-10-gw-40-gwh-bess-procurement-with-15-year-maintenance-contract/) reported the procurement plan on November 4, 2026.

## Inside NTPC Green Energy's 10 GW Storage Tender

[NTPC Green Energy](https://akta.pro/company-profiles/000095k/ntpc-green-energy) is a subsidiary of NTPC Limited that develops and operates utility-scale solar, wind, hybrid, battery storage and green hydrogen projects, selling power under long-term agreements to government utilities, distribution companies, defence establishments and industrial customers across India.

The proposed project covers 10 GW/40 GWh of storage capacity across the company's portfolio. The tender's scope includes lithium iron phosphate containerized battery energy storage systems and grid-forming power conversion systems, and selected bidders will supervise erection, installation and commissioning up to the converter output terminals.

Selected vendors will also provide comprehensive service and maintenance for 15 years from the date of commissioning under a Long Term Service Agreement. The company said the detailed Invitation for Bids will be released shortly through the NTPC tender portal, with complete bidding documents to follow on the ETS electronic tender portal.

Bidders must register on the ETS website and hold a valid Class III Digital Signature Certificate from an Indian Certifying Authority, a requirement that also applies to foreign bidders under the Information Technology Act.

## NTPC Green Energy's Funding and Operating Scale

According to akta.pro [company records](https://akta.pro/company-data), NTPC Green Energy raised Rs 2,500 crore in July 2026 through 10-year unsecured non-convertible debentures at a 7.27% coupon, rated AAA, with proceeds earmarked for capital expenditure and inter-corporate loans to subsidiaries and joint ventures. The same records put group operational capacity at 10,721 MW as of mid-2026, after the group passed 10 GW on March 31, 2026 at 10,126 MW.

## Solar Additions Ahead of the Storage Tender

NTPC Green Energy declared the first part of its Kalasar Solar Energy Project in Bikaner, Rajasthan, commercially operational on September 26, 2026, adding 81.34 MW and lifting group installed capacity to 11,058.57 MW, Business Standard reported. On October 29, 2026, ScanX reported commercial operation of a 95.6 MW solar project at Bikaner effective October 30, 2026, the fifth part of Kalasar, raising group capacity to 11,424.29 MW. Construction World reported on October 14, 2026 that NTPC Green Energy had tendered a 3.3 GWh battery storage project in Khavda, Gujarat, in four blocks totaling 3300 MWh.

## What Follows the Battery Storage Tender

The Invitation for Bids is to be issued through the NTPC tender portal, and the full bidding documents will then be posted on the ETS electronic tender portal, where suppliers must register to take part.

## Companies in this story

- [NTPC Green Energy company profile](https://akta.pro/company-profiles/000095k/ntpc-green-energy) · website: https://www.ngel.in/ngel-home

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