The Solar Energy Corporation of India (SECI) has invited bids for setting up an aggregate 1.2 GW of interstate transmission system (ISTS) connected wind-solar hybrid power projects under Tranche-III. The projects—to be developed on build-own-operate basis—can be set up anywhere in India at the locations chosen by the developer.
SECI shall enter into power purchase agreement (PPA) with the successful bidders for a period of 25 years from the commercial operation date, with maximum tariff payable to each developer fixed at Rs 2.88/kWh for the entire term. The power procured will be sold to the interested buying utilities.
Project configuration and capacity offered. Under this RfS, a hybrid power project shall comprise solar and wind power projects. The rated installed capacity of either of the project component shall be more than 25% of the rated installed capacity of the other component. For example, if a single hybrid project comprises 200 MW of wind power capacity, the minimum rated installed capacity for the corresponding solar project component shall be 50 MW.
The hybrid power projects are to be designed for interconnection with transmission network of 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 also be sub-divided into a number of ‘blocks,’ which can be 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.
A single developer can bid for a minimum 50 MW up to whole of the 1.2 GW tendered capacity. The minimum project size shall be 50 MW and maximum 300 MW.
4 MW floating solar plus storage
Bids are also invited for setting up an aggregate 4 MW of grid-connected floating solar capacity with 2 MW/1 MWh battery energy storage system in Andaman & Nicobar Islands. The projects—to be set up on build-own-operate basis—shall come up at Kalpong Dam of Nabagram Island in village Diglipur.
Electricity Department, Andaman & Nicobar administration (A&NA) shall enter into a power purchase agreement with the successful bidder for a period of 25 years, with the tariff ceiling fixed at Rs 8/KWh for the entire term.
The plant should be designed for interconnection with the nearest substation of Electricity Department, A&NA at a voltage level of 33 kV. Connectivity up to the delivery point is in the scope of the developer.
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