Petition for Adoption of Tariff for ISTS Grid connected Solar Power Projects of 1200 MW with 600 MW/2400 MWh ESS and with additional capacity – EQ
Summary:
—
## ⚖️ **Case Summary – CERC Petition No. 773/AT/2025**
* **Authority:** Central Electricity Regulatory Commission (CERC), New Delhi
* **Date of Hearing:** 26 September 2025
* **Coram:**
* Shri Jishnu Barua – Chairperson
* Shri Ramesh Babu V. – Member
* Shri Harish Dudani – Member
* Shri Ravinder Singh Dhillon – Member
—
## 📘 **Petition Overview**
* **Filed under:** Section 63 of the *Electricity Act, 2003*
* **Purpose:** Adoption of tariff for **1200 MW ISTS-connected Solar Power Projects** with
* **600 MW / 2400 MWh Energy Storage System (ESS)**
* Additional capacity **up to 1200 MW under “Greenshoe Option”**
* **Location:** Anywhere in India (ISTS-based projects).
* **Guidelines:** As per *MoP Guidelines for Tariff-Based Competitive Bidding Process for Procurement of Firm and Dispatchable Power from Grid-Connected Renewable Energy Projects with ESS*, dated **9 June 2023** (with amendments).
—
## 🏢 **Parties**
* **Petitioner:** **NHPC Limited (NHPC)**
* **Respondents:** **Reliance Infrastructure Limited and Others**
* **Counsel for NHPC:** Shri Akshay Goel
* **Also Present:** Shri Jagpal Singh (NHPC) and Shri Durgesh Gupta (Reliance Infra)
—
## 💡 **Key Details**
* The petition concerns **firm and dispatchable renewable power procurement**, integrating **solar generation with large-scale battery storage (ESS)**.
* NHPC filed additional details on **Greenshoe capacity allocation** via **affidavit dated 27 August 2025**, submitted after the initial filing.
—
## 🧾 **Proceedings and Directions**
1. **Petition admitted**; notice issued to all respondents.
2. **Replies** to be filed within **2 weeks**; NHPC may submit **rejoinder within 2 weeks thereafter**.
3. **Next hearing:** **4 November 2025**.
—
## 📄 **Current Status (as of 26 Sep 2025)**
The petition stands **admitted**; tariff adoption for 1200 MW Solar + 600 MW/2400 MWh ESS (plus optional 1200 MW Greenshoe) is **under consideration**.
CERC has directed procedural filings before the next hearing.
—
For more information please see below link:
