Special Report
Interstate transmission network sees healthy addition of transformation capacity
The interstate transmission system (ISTS) network has witnessed healthy addition of transformation (substation) capacity addition during the current fiscal year.
Transmission line addition picks up in October 2025 but still short of target
- Nov 26, 2025
The pace of transmission line addition picked up in October 2025, according to latest official statistics, but the cumulative performance in FY26 is still far below the target.
Full commissioning of 15 ISTS-TBCB schemes expected in Q3FY26
- Oct 27, 2025
An estimated 15 interstate transmission system (ISTS) schemes that were awarded under the tariff-based competitive bidding route (TBCB) are likely to be commissioned during the third quarter (Q3: October to December) of FY26.
EHV transmission line tower failure: 22 cases reported in January-June 2025
- Oct 24, 2025
During the period January 1, 2025 to June 30, 2025, 22 cases of EHV transmission line failure due to towers were reported by 11 utilities to the Standing Committee of Experts constituted by the Central Electricity Authority (CEA).
Substation capacity addition up 74 per cent, but short of target
- Oct 15, 2025
India’s substation capacity addition during the first half (H1: April to September) of FY26 was up 74 per cent, year-on-year, but still met only two-thirds of the planned addition.
India’s first synchronous condenser (SynCon) project under TBCB, approved
- Oct 13, 2025
India’s very first project for deploying of synchronous condenser (SynCon) units for implementation under the TBCB route was recently approved by NCT.
Transmission line addition falls 27 per cent in H1FY26
- Oct 9, 2025
Transmission line addition during the current fiscal year continued to be depressed with the first half (H1: April to September) closing with a 27 per cent year-on-year decline.
ISTS-TBCB in H1FY26: Winners declared for 12 schemes, seven SPVs transferred
- Oct 6, 2025
Winners were declared for a total of 12 interstate transmission system (ISTS) schemes under the tariff-based competitive bidding (TBCB) mechanism during the first half (H1: April to September) of the current fiscal year FY26, according to a special study by tndindia.com.
HVDC technology ruled out for mega Ladakh RE evacuation scheme
- Oct 1, 2025
The option of using HVDC-based power transmission technology for the mega transmission scheme to evacuate 5 GW of renewable energy from Leh in UT of Ladakh is now ruled out.
Substation capacity addition more than doubles, 765kV voltage class dominates
- Sep 24, 2025
Over half of the new substation capacity added in the first five months of FY26 (April to August) pertained to the 765kV voltage class, implying a major boost to the interstate transmission system (ISTS) network.