WBSEDCL issue Tender for the development of a large-scale 500 MW / 2,000 MWh standalone Battery Energy Storage System – EQ
Summary:
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### Tender Details at a Glance
* **Project Scope**: Setting up 500 MW / 2,000 MWh of standalone BESS (technology agnostic) .
* **Locations & Capacity**: Projects will be distributed across four substations :
* **Durgapur**: 200 MW / 800 MWh
* **Kharagpur**: 100 MW / 400 MWh
* **Hooghly-Arambag**: 100 MW / 400 MWh
* **Jeerat**: 100 MW / 400 MWh
* **Model**: Build-Own-Operate (BOO) .
* **Minimum Project Size**: 100 MW / 400 MWh .
* **Key Dates**:
* **Bid Submission Deadline**: April 24, 2026 .
* **Bid Opening**: May 7, 2026 .
* **Contract Term**: 15 years from project commissioning .
* **Land**: WBSEDCL will provide land at a nominal annual rent of ₹1 per project .
### Financial & Technical Requirements
* **Bid Security (EMD)**: ₹300,000 per MW (approx. $3,196/MW). For the maximum 500 MW, this totals ₹15 crore .
* **Performance Bank Guarantee (PBG)**: ₹750,000 per MWh (approx. $7,991/MWh) .
* **Document Fee**: ₹500,000 + ₹2,500 processing fee .
* **Performance Requirements**:
* Minimum **95% monthly system availability** (penalties for shortfalls) .
* One operational cycle per day, with a **minimum 4-hour discharge** duration .
* **18-month** project completion deadline .
* **Bidder Eligibility**:
* **Net worth**: Minimum ₹10 million per MW .
* **Annual Turnover**: Minimum ₹5 million per MWh .
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