Petition for Adoption of tariff for 2000 MW ISTS Solar PV Power Projects with 1000 MW/ 4000 MWh ESS (SECI-ISTS-XX) of the Government of India – EQ
Summary:
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### **1. Basic Case Information**
* **Petition No.:** 975/AT/2025
* **Date of Hearing:** December 16, 2025
* **Coram (Bench):** Shri Ramesh Babu V., Member; Shri Harish Dudani, Member; Shri Ravinder Singh Dhillon, Member
* **Petitioner:** Solar Energy Corporation of India Limited (SECI)
* **Respondents:** Welspun Renewable Energy Private Limited & Others
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### **2. Subject Matter of the Petition**
The petition has been filed by SECI **under Section 63 of the Electricity Act, 2003**. It seeks the **adoption of tariff** discovered through a competitive bidding process for a specific large-scale renewable energy project. The project details are:
* **Capacity:** 2000 MW of Interstate Transmission System (ISTS)-connected Solar PV Power Projects.
* **Energy Storage System (ESS):** Co-located with a capacity of 1000 MW / 4000 MWh.
* **Bidding Tranche:** Referred to as **”SECI-ISTS-XX”** (where “XX” denotes the specific tranche number).
* **Governing Guidelines:** The bidding was conducted as per the Ministry of Power’s “Guidelines for Tariff Based Competitive Bidding Process for Procurement of Power from Grid Connected Solar PV Power Projects” dated July 28, 2023, and its subsequent amendments.
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### **3. Key Legal Provision**
* **Section 63 of the Electricity Act, 2003:** This section mandates that if the procurement of power (in this case, from solar projects with storage) is done through a **transparent competitive bidding process** according to Central Government guidelines, the **Central Electricity Regulatory Commission (CERC) must adopt the tariff** discovered in that bidding process. SECI’s petition is a formal request for this statutory adoption.
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### **4. Proceedings & Commission’s Order (Dated 16.12.2025)**
1. **SECI’s Submission:** Their counsel presented the petition seeking tariff adoption.
2. **CERC’s Directions:**
* **Admitted** the petition for consideration.
* Ordered to **issue notices** to all Respondents (the successful bidders like Welspun Renewable Energy Pvt. Ltd. and others).
* **Timeline for Replies:**
* **Respondents** have **two weeks** to file their replies, serving a copy to SECI.
* **SECI** may then file a **rejoinder** (reply to the responses) within **two weeks** after receiving the Respondents’ replies.
3. **Next Date of Hearing:** The case is scheduled for the next hearing on **January 29, 2026**.
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