NTPC Awards BESS EPC Contracts Across Key Thermal Plants

NTPC Limited has awarded multiple Battery Energy Storage System (BESS) EPC contracts across its thermal power plants to SolarWorld Energy Solutions, Enviro Infra Engineers, and GR Infraprojects. The projects aim to integrate grid-scale battery storage with existing thermal assets to improve power reliability, manage peak demand, and support renewable energy integration.

SolarWorld Energy Solutions

SolarWorld has effectively swept awards across three major thermal power stations and one massive solar park in Rajasthan, totaling over ₹600 crore in fresh orders in a single week.

Lot-1: 264 MWh Project at Solapur

SolarWorld secured its first major win under Lot-1 at the Solapur Super Thermal Power Station.

Capacity: 132 MW / 264 MWh
Project Value: ~₹314.26 crore
Scope: EPC execution of BESS system
Timeline: ~15 months

This project marked SolarWorld’s entry into NTPC’s large-scale thermal-integrated storage program

Lot-2: Additional 250 MWh Across Two Thermal Plants

Building on its initial win, SolarWorld further expanded its presence under Lot-2, securing two additional BESS projects:

1. Unchahar Thermal Power Station (Uttar Pradesh)

Capacity: 50 MW / 100 MWh
Project Value: ~₹108.22 crore

2. Solapur Thermal Power Station (Maharashtra) – Additional Package

Capacity: 75 MW / 150 MWh
Project Value: ~₹176.91 crore
Combined Capacity (Lot-2): 250 MWh
Execution Timeline: ~15 months

Solapur is now one of the largest combined thermal-plus-storage sites in India. SolarWorld will handle everything from the battery racks to the 33 kV pooling switchgears.

Enviro Infra Engineers

Enviro Infra Engineers has entered India’s grid-scale energy storage sector with two major NTPC BESS EPC contracts worth over ₹1,070 crore.

Lot-1 Win: ₹664.33 Crore EPC Package

Awarded on March 28, 2026, this package focuses on strengthening grid flexibility at key thermal power hubs in South India.

Project Scope & Locations
Kudgi Super Thermal Power Station (Karnataka): 480 MWh
Ramagundam Super Thermal Power Station (Telangana): 100 MWh
Total Installed Capacity: 580 MWh
Contract Value: ₹664.33 crore (excluding GST)
Execution Timeline
EPC Duration: 18 months
Post-Completion: 11-year Comprehensive Annual Maintenance Contract (CAMC)

This project is designed to enhance peak load management and renewable integration, supporting NTPC’s transition toward flexible thermal operations.

Lot-2 Expansion: ₹405.71 Crore Package

Shortly after the Lot-1 award, Enviro Infra secured a second major contract under NTPC’s Lot-2 BESS program, expanding its geographic footprint.

Project Locations

Tanda Super Thermal Power Station (Uttar Pradesh)
Bongaigaon Thermal Power Station (Assam)
Contract Value: ₹405.71 crore (excluding GST)
Execution Timeline
EPC Duration: 15 months
Maintenance: 11-year CAMC

GR Infraprojects

GR Infraprojects has been awarded a BESS EPC contract at the Mouda Super Thermal Power Station (Lot-1).

Project Value: ~₹413.37 crore (excluding GST)
Scope:

EPC execution including supply and services
Long-term maintenance for the system
Execution Timeline: ~15 months

Part of NTPC’s 2.3 GWh Lot-I BESS Program

These projects are part of NTPC’s Lot-I BESS deployment, which covers a total capacity of approximately 2,334 MWh (≈2.3 GWh) across multiple thermal power plants.

Other developers awarded capacity under the same program include:

NTPC GE Power Services – 400 MWh (Barh, Bihar)
Pace Digitek – 400 MWh (Nabinagar, Bihar)
Enrich Energy – 290 MWh (Simhadri, Andhra Pradesh)

Focus on Grid Stability and Peak Demand Management

These projects involve deployment of grid-scale battery energy storage systems at thermal power plants, enabling better load management and flexible power dispatch.

By integrating BESS with conventional power plants, NTPC aims to:

Enhance grid stability and reliability
Support peak load management
Enable smoother integration of renewable energy sources

Project Execution Model and Timeline

All projects have been awarded under the EPC model, covering complete project delivery from engineering and procurement to installation and commissioning, along with long-term maintenance.

Awards Announced: March 2026
Execution Period: 15–18 months
Maintenance Period: Up to 11 years (project-specific)

The award of these BESS projects marks a significant step in NTPC’s strategy to modernize its thermal fleet by integrating energy storage solutions, paving the way for a more flexible and resilient power system.