The Solar Energy Corporation of India (SECI) has invited bids to set up an aggregate 1.2 GW of inter-state transmission system (ISTS)-connected wind-solar hybrid power projects in India under Tranche-IV. Developers selected by SECI shall set up wind-solar hybrid power projects on a build-own-operate basis at their chosen locations.
SECI has been designated as a trader for the purchase and sale of power from such projects. It shall enter into a 25-year power purchase agreement (PPA) with the successful bidders and a power sale agreement with the interested buying entities.
“Projects under construction, projects which are not yet commissioned and projects already commissioned but do not have any long-term PPA with any agency and selling power on short-term or merchant plant basis will also be considered, in case these projects are not already accepted under any other Central or State Schemes and do not have any obligations towards existing buyers,” as per the tender document.
Project configuration and capacity offered
Under this RfS, a hybrid power project shall comprise solar and wind power components. The rated installed project capacity of either of the two components shall be at least 33% of the contracted capacity.
The hybrid power projects are to be designed for interconnection with the transmission network of the central transmission utility at a minimum voltage level of 220 kV. Developers are required to set up the transmission network up to the delivery point at their own cost.
The solar project component may be sub-divided into a number of ‘blocks’, set up at multiple locations if required. However, such blocks for a single solar project component shall be located within the same State. The minimum voltage level for a single block shall be 33 kV. These individual blocks shall be pooled at a minimum voltage level of 33 kV at a ‘pooling station.’
Single developers can compete for a minimum of 50 MW, up to all of the 1200 MW capacity. The minimum project size shall be 50 MW.
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