NTPC invites EOI for flexible thermal power solutions to support grid

India’s rapid renewable capacity growth is advancing clean energy goals but increasing demand for flexible power to manage grid variability. With limited hydro, gas, and large-scale storage, thermal plants remain key for grid balancing. NTPC said its entire thermal fleet already runs at a 55 per cent technical minimum load during low demand. All stations participate in ancillary services, including AGC, PFR, TRAS, SCED, and SCUC to accommodate renewables during solar hours, supporting grid flexibility and reliability.

Operational experience shows sub-critical thermal units may offer greater flexibility than supercritical and ultra-supercritical technologies for certain balancing needs due to lower parameter swings and reduced fatigue. Their ability to run efficiently at low loads and handle frequent cycling can enable higher renewable integration. 

To explore this, NTPC has invited an Expression of Interest (EOI) for 150-250 MW sub-critical units capable of two-shift operation and 25 per cent minimum technical load. The initiative aims to identify technology providers and EPC partners for highly flexible thermal solutions, reinforcing grid stability amid India’s energy transition.