TSECL issue Tender for Setting up of cumulative 50 MW/ 200 MWh Standalone BESS at 33 KV level spread over a number of 33KV Sub-stations – EQ

Summary:

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**1. Business Opportunity Overview**
The Tripura State Electricity Corporation Limited (TSECL) is seeking Expressions of Interest (EOI) from qualified developers and manufacturers to set up a large-scale, distributed Battery Energy Storage System (BESS). This project represents a strategic infrastructure investment aimed at modernizing Tripura’s power grid to handle future demand and integrate renewable energy.

– **Project Size:** 50 MW / 200 MWh (Cumulative)
– **Module Size:** 5 MW / 20 MWh per substation.
– **Locations:** Spread across multiple 33/11 kV substations within Tripura.

**2. Strategic Business Rationale for TSECL**
TSECL is initiating this project to address critical operational challenges:
– **Peak Demand Management:** The state’s peak demand (378 MW) is projected to nearly double by 2030 (690 MW). The BESS is specifically designed to manage the evening peak load window (17:30 to 21:30 hrs), ensuring grid stability and reliability.
– **Renewable Integration:** As renewable energy sources are added to the grid, storage is essential to manage their intermittency and ensure a stable power supply.
– **Grid Optimization:** Distributed storage at the 33 kV level will enhance the efficiency and resilience of the local transmission network.

**3. Key Technical & Commercial Considerations for Respondents**
Businesses responding to this EOI must address the following points in their proposals:

– **Technology & Implementation:**
– Propose a suitable **Battery Chemistry/Technology** (e.g., Lithium-Ion, Flow batteries, etc.).
– Provide a **Project Implementation Timeline**.
– Detail the **area requirement** for setting up the 5 MW/20 MWh modules at substations.

– **Business & Revenue Model:**
– This is a critical component. Respondents must propose a viable model. The EOI hints at potential structures where the developer might arrange for the charging power, or TSECL could provide it. This will be central to the financial viability of the project.

– **Project Tenure:**
– Bidders must be prepared to offer proposals for either a **12-year or 15-year** project duration, covering implementation and likely operation & maintenance.

– **Charging Arrangement:**
– The BESS will be charged during solar hours. The EOI leaves the arrangement open: either TSECL will supply the power, or the developer must arrange it. This has significant implications for the project’s operating costs and revenue model.

**4. Eligibility & Submission Requirements (Bidder Qualification)**
TSECL is looking for “financially sound and technically competent” agencies. Key qualification documents include:

– **Financial Stability:** Audited statements showing Annual Turnover for the last three financial years.
– **Technical Expertise:** Proven experience in executing, operating, and maintaining similar BESS projects (details of past projects are required).
– **Legal Standing:** Certificate of Incorporation, PAN, GST, and a declaration on any blacklisting/debarment.
– **Proposal Quality:** A brief concept note covering technology, implementation mode, and the crucial **Business & Revenue Model** is required.

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