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The Rajasthan Rajya Vidyut Utpadan Nigam Limited (RVUNL) has issued a Request for Selection (RfS) to establish standalone Battery Energy Storage Systems (BESS) with a capacity of 500 MW/1000 MWh under a Build-Own-Operate (BOO) model. The projects will be set up at RVUNL-owned power plants and substations of the Rajasthan Rajya Vidyut Prasaran Nigam Limited (RVPNL). Additionally, a “Green Shoe” option allows an extra capacity of 500 MW/1000 MWh.
The RfS document outlines a single-stage, two-envelope bidding process. Interested bidders need to submit non-refundable fees: a tender processing fee of ?2,500 plus GST and a tender document fee of ?15 lakh plus GST. For earnest money, bidders must deposit ?10.7 lakh per MW through a bank guarantee. Selected bidders will also need to submit a Performance Bank Guarantee (PBG) of ?26.5 lakh per MW before signing the Battery Energy Storage Purchase Agreement (BESPA).
The selected projects are expected to be completed within 18 months from the signing of the BESPA. If the project is delayed, a six-month extension can be granted with penalties. Projects not commissioned within this extended period will result in forfeiture of the PBG.
The document highlights the need for BESS to support renewable energy integration, given the variability of sources like solar and wind. BESS will store excess power and supply it during peak demand periods, aiding grid stability and efficiency. The system should be able to complete two charge-discharge cycles daily, with a minimum round-trip efficiency of 90%. Failure to meet performance criteria may result in penalties.
Connectivity with the state transmission utility (STU) grid is a critical component. Bidders are responsible for constructing and maintaining infrastructure from the project site to the interconnection point. The STU will handle power transmission beyond the interconnection point. All regulatory and environmental clearances must be obtained by the bidders.
The RfS also mentions a Viability Gap Funding (VGF) mechanism to support the projects. The government will provide financial assistance capped at ?27 lakh per MWh or 30% of the capital cost, whichever is lower. VGF disbursement will occur in five tranches based on project milestones. A bank guarantee equal to the VGF amount will be required, refundable after five years.
Overall, the initiative aims to enhance energy storage capabilities in Rajasthan, aligning with India’s renewable energy targets. |
