NTPC launches concentrated solar-plus-thermal storage tender


NTPC is inviting expressions of interest (EoI) to set up a 50 MW (net output at ex-bus) concentrated solar power (CSP) project with thermal energy storage system for 8-hour operation during peak hours and non-solar hours. The project must connect to the interstate transmission system.

“Based on the techno-commercial analysis of the responses in the EOI and further discussions with interested parties, if the project is found commercially feasible, NTPC may proceed for further power purchase agreement for a period of 25 years or may not proceed with any project at this stage,” states the tender document.

The prospective developer will develop the project on a build-own-operate basis.  It will supply 50 MW of renewable energy power, ensuring the annual availability of minimum 70% of the contracted capacity in MW during 8 hours of peak demand and non-solar hours. It will use only concentrated solar power to charge the thermal energy storage system.

“The thermal energy storage will be discharged to cater power requirements either during two power blocks at full capacity (50 MW) or at partial load distributed in the entire period of non-solar hours,” reads the tender document

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