Four separate blocks of BESS will be installed: three of 300MW rated AC discharge capacity at the point of injection at ISTS substations, with 900MWh capacity each and another of 200MW/600MWh. Each will connect at the 33kV level to a designated 300MW solar PV plant at the complex.
The EPC package includes a full scope of work spanning design to supply, installation and commissioning of BESS assets on a turnkey basis, as well as integration with the solar PV assets and the grid.
NGEL requires BESS assets to have a 25-year operational lifetime from the date of commissioning, accounting for capacity degradation and offering a minimum 10,000 cycles of operation.
Operations and maintenance (O&M) contracts with 15-year terms will be included in the scope of bidding, while the minimum monthly round-trip efficiency (RTE) must be at least 80%, including auxiliary consumption, and 98% annual availability must be maintained, according to NGEL documents.
The issuing of NGEL’s tender follows the recent announcement from Adani Green Energy, the Adani Group subsidiary that is overseeing the hybrid park’s overall development, that it has to date already commissioned 3.37GWh of cumulative BESS capacity at the Khavda park.
