NTPC Green VRFB issue Tender for EPC Package for Development of 100 MWh Vanadium Redox flow BESS at Khavda Solar Park by NTPC REL – EQ
Summary:
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## **1. Issuing Authority**
**NTPC Renewable Energy Limited (NTPC REL)**
A subsidiary of NTPC Limited
IFB No.: **NREL-CS-5836-004(BESS)-9**
Date: **18 November 2025**
Tender accessible at:
* Bharat Electronic Tender portal
* NTPC Tender portal
* NTPC REL website
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# **2. Project Overview**
NTPC REL invites bids for a **turnkey EPC package** for developing a **100 MWh (16.7 MW / 100 MWh) Vanadium Redox Flow Battery Energy Storage System (VRFB)** at the **Khavda Solar Park**.
### **Technology**
Vanadium Redox Flow Battery (VRFB) – long-duration, non-lithium BESS.
### **Project Type**
Domestic Competitive Bidding – *Single Stage, Two-Envelope system*
* Envelope I: Techno-Commercial Bid
* Envelope II: Price Bid
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# **3. Scope of Work (Turnkey EPC + 10-Year O&M)**
### **EPC Responsibilities**
The bidder must design, engineer, supply, construct, test, and commission a **fully functional BESS integrated with 33 kV pooling substation**. Scope includes:
### **3.1 Supply, Installation & Commissioning**
* 16.7 MW / 100 MWh VRFB-based BESS
* Battery Management System (BMS), Energy Management System (EMS), SCADA
* PCS (Power Conversion System)
* Firefighting, monitoring, communication, protection systems
* HT & LT switchgear
* Auxiliary power systems
* HT transformer(s)
* Integration with existing solar plant evacuation system
* Remote monitoring capability
### **3.2 Design & Performance Requirements**
* VRFB system **designed life: 25 years**
* Guaranteed parameters:
* Round Trip Efficiency (RTE)
* Annual degradation
* Auxiliary consumption
* Compliance with **CEA, CERC, LDC standards**
* Suitability for **Khavda site conditions** (corrosive environment, high temperature)
### **3.3 Civil & Interface Works**
* Site grading and vegetation removal
* All required civil and electrical works for grid integration
* Metering system as per site requirement
### **3.4 Documentation & Training**
* Design documents, drawings, software models
* Startup & Site Acceptance Test plan
* Training for operators, engineers, technicians
### **3.5 Tools, Warranty & O&M**
* Special tools for O&M
* Warranty as per technical specifications
* **Comprehensive O&M for 10 years**
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# **4. Project Capacity**
* **16.7 MW / 100 MWh (AC)**
* Entire capacity must be bid as a single package.
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# **5. Contact Details**
NTPC Renewable Energy Limited
NETRA Building, Greater Noida
* **Mobile:** +91 9424140768
* **Landline:** +91 120-2356601
* **Emails:**
* [omprakash08@ntpc.co.in](mailto:omprakash08@ntpc.co.in)
* [abhishekkumar02@ntpc.co.in](mailto:abhishekkumar02@ntpc.co.in)
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# **6. Key Points in Brief**
* India’s major utility-scale tender for **flow battery technology** (VRFB).
* Full EPC + 10-year O&M required.
* Integrated with **33 kV** solar pooling substation.
* Designed operational life of **25 years**.
* Focus on grid-compliant, durable, long-duration storage at Khavda.
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For more information please see below link:
