The quantum of interregional electricity transfer in FY24 was up 5.6 per cent year-on-year.
According to a special study by T&D India, based on official statistics released by National Load Dispatch Centre (NLDC), total electricity transfer between the five regional grids stood at 249,487 million units (MU) in FY24. This was 5.6 per cent higher than the comparable 236,153 MU in FY23.
The five regional grids of the National Grid include northern (NR), southern (SR), eastern (ER), western (WR) and northeastern (NER).
The biggest component of the interregional transfer continued to be exports from WR to NR (denoted as WR-NR). At 74,643 MU, WR-NR represented nearly 30 per cent of the total interregional transfer.
NR was the biggest net importer of electricity with net imports standing at 77,315 MU in FY24 as against 66,321 MU in FY23. Imports into NR (from all other regions) grew by 4.5 per cent in FY24, while exports fell by nearly 20 per cent.
SR was the next biggest net importer in FY24, to the tune of 72,186 MU, much larger than the comparable 43,202 MU. Imports by SR in FY24 rose by nearly 33 per cent, in conjunction with a sharp 42 per cent decline in exports.
The remaining three regions – WR, ER and NER – were net exporters in FY24, as they were in FY23.
WR appeared to be in a comfortable power supply position in FY24. Imports by WR fell 21.2 per cent year-on-year in FY24, coupled with a 30.2 per cent rise in exports. WR was a net exporter to the extent of 86,410 MU in FY24, as against 43350 MU in FY23.
NER was also a net exporter albeit at a smaller extent of 272 MU in FY24 as against 2,069 MU in FY23. Exports from NER grew by 21.7 per cent in FY24 but this was matched by a 19.9 per cent rise in imports.
ER maintained its net exporter status in FY24, at 62,820 MU, comparable to 64,104 MU in FY23. Imports by ER declined marginally by 0.8 per cent and so did exports — by 1.8 per cent.
Interregional electricity transfer through HVDC lines gained prominence in FY24. During the year, a total of 80,405 MU was transferred through HVDC lines – 23.8 per cent higher than the comparable 64,951 MU in FY23. Besides, the share of HVDC lines in total interregional transfer grew appreciably to 32.2 per cent in FY24 from 27.5 per cent in FY23.
The ±800kV Raigarh-Pugalur line was the busiest HVDC line, transferring 23,713 MU from WR to SR in FY24. This accounted for nearly 30 per cent of the total HVDC-based interregional transfer in that year.
Also read: Interregional Electricity Exchange Up 4.4 Per Cent In 9MFY24
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