Major substation build-up seen in April 2025, AESL leads private sector addition
- May 13, 2025
Significant transformation capacity addition was seen in April 2025, the opening month of the ongoing fiscal year FY26 with Power Grid Corporation of India Ltd (PGCIL) and Adani Energy Solutions Ltd (AESL) making important contributions.
According to latest statistics released by Central Electricity Authority (CEA), the month of April 2025 saw the commissioning of 13,440 MVA with active contribution from all ownership groups.
This takes forward the trend in March 2025 when a record 28,950 MVA of transformation capacity was commissioned – the highest in any month in recent history.
By Ownership
Power Grid Corporation of India Ltd (PGCIL) completed three substation projects – all of 765/400kV type – involving new transformation capacity of 6,000 MVA. Two substation projects were associated with ISTS-TBCB schemes – one each at Khavda (Gujarat) and Fatehgarh (Uttar Pradesh). Both these schemes envisaged evacuation of renewable energy.
The state government sector saw 3.280 MVA of new substation capacity commissioned in April 2025. Tamil Nadu witnessed the highest addition followed by Telangana, Punjab and Haryana, among several others.
Adani Energy Solutions Ltd (AESL) commissioned 4,160 MVA of new transformation capacity, representing the entire addition by the private sector. AESL commissioned 1,160 MVA at the Sangod GIS substation in Rajasthan. This was part of an intrastate TBCB scheme housed under “Sangod Transmission Services Ltd.” Incidentally, the 11-ckm of transmission line associated with this project was also commissioned in April 2025, rendering the entire project commissioned.
AESL also commissioned 3,000 MVA of augmented substation capacity at the KPS1 (Khavda Pooling Station-1) in Gujarat, which is part of an ISTS-TBCB scheme, incorporated under “KPS1 Transmission Ltd.” This scheme was originally won by Megha Engineering & Infrastructures Ltd (MEIL) in April 2023 but subsequently acquired by AESL.
In March 2025, AESL had commissioned 3,000 MVA at KPS1, as well as a 41-ckm double-circuit line connecting KPS1 and KPS2.
With this, KPS1 Transmission Ltd has now fully commissioned its Gujarat-centric ISTS-TBCB scheme officially termed as “Transmission system for injection beyond 3 GW RE power at Khavda Pooling Station-1 (KPS1).”
According to information available, AESL is likely to commission one more ISTS-TBCB scheme “Khavda II-A Transmission Ltd” during Q1 (April to June) of FY26.
By network
Of the 13440 MVA of substation capacity added in April 2025, around 67 per cent (or 9,000 MVA) was on the interstate transmission system (ISTS) side with PGCIL and AESL being the contributors. The remaining 4,440 MVA (or 33 per cent) was on the intrastate network.
Cumulative Status
As of April 30, 2025, India’s total transformation capacity (of 220kV or above) was 13,50,953 MVA with 564,885 MVA on the interstate (ISTS) side and the remaining 786,068 MVA on the intrastate (InSTS) network. Between April 2024 and April 2025, the country’s transformation capacity has grown by 7.8 per cent with interstate transformation capacity showing a faster growth of 9.4 per cent as against 6.7 per cent seen on the InSTS side.
Featured photograph (source: Adani Energy Solutions Ltd) is for representation only
