Indo Tech 125 MVA Transformer Order for Solar and Wind
India Local Transformer Procurement: Indo Tech Lands $4.5 M Solar and Wind Transformer Order
Chennai-based Indo Tech Transformers has secured a USD 4.5 million (₹428.8 M) order from Leap Green Energy Group for four 125 MVA power transformers destined for renewable energy projects. The contract is another indicator that Indian domestic manufacturers are taking on 400 kV class orders, in step with the country’s accelerating 765 kV transmission build-out.
The package covers two voltage classes: two 125 MVA, 400/33 kV step-up units for a solar project developed by Magnolia Powertec Private Limited, and two 125 MVA, 230/33 kV step-up units for a wind project under Crocus Green Energy Private Limited. All four units are configured as main step-up transformers for grid connection of utility-scale solar and wind farms, matching the typical collector-to-grid architecture used in Indian SECI tenders.
1. Order Background and Grid Context
The buyer, Leap Green Energy Group, is an Indian renewable energy developer active in wind, solar and storage. Magnolia Powertec and Crocus Green Energy are two of its project SPVs handling different voltage interconnections. The 400 kV class corresponds to India’s primary bulk-connection voltage for large renewable plants, while 230 kV typically feeds regional or interstate transmission networks.
For related context on India’s broader transformer capacity build-out, see our earlier analysis of India’s 765 kV substation capacity addition.
From an engineering standpoint, the package delivers 500 MVA of step-up capacity entirely from a domestic supplier. This is a microcosm of the “Make in India” trajectory that is pushing transformer localisation rates steadily upward and shortening the lead time that has plagued global procurement.
2. Transformer Core Parameters
All four 125 MVA units follow standard power transformer practice:
- Rated capacity: 125 MVA per unit, 500 MVA in aggregate
- Voltage classes: 400/33 kV (solar) and 230/33 kV (wind)
- Winding configuration: two-winding step-up, with 33 kV LV side matching collector circuit voltage
- Cooling: ONAN / ONAF (oil-immersed natural circulation with forced-oil forced-air)
- Application: solar PV and wind farm main step-up to grid
For broader coverage of power transformer manufacturing capacity and expansion programmes across regions, see our archive on power transformers.
The 400/33 kV units step up directly from 33 kV collector to 400 kV state grid, eliminating an intermediate 220 kV or 132 kV transformation stage. This imposes higher insulation withstand and short-circuit withstand requirements on each unit, which is exactly where the July 2026 Indo Tech expansion strategy starts to pay off.
3. Indo Tech Capacity Expansion Path
Indo Tech announced in July 2026 that it would extend product capability into higher voltage classes. This 400/33 kV order is the first concrete execution of that strategy.
The company is concurrently executing a USD 51.6 million (₹4.95 B) phased manufacturing expansion programme:
| Phase | Target capacity | Investment |
|---|---|---|
| Phase 1 | 16,000 MVA | USD 7.8 M (₹750 M) |
| Phase 2 | 20,000 MVA | — |
| Phase 3 | 25,000 MVA | — |
| Phase 4 | 50,000 MVA | — |
For an industry perspective on conductor selection criteria relevant to transformer winding design and renewable interconnection, see the related coverage on choosing the right enameled wire for motor and transformer modification.
The full programme raises annual capacity from 14,000 MVA to 50,000 MVA (about 3.6x), with completion targeted for FY29. The trajectory signals a clear shift away from pure distribution-class products toward high-voltage power transformers and EHV transmission equipment.
4. Financial Performance and Industry Position
FY26 results underline the financial backing for the expansion:
- Revenue: USD 81.5 M (₹7.82 B), up 28 percent year on year
- Profit after tax: USD 9.7 M (₹930 M), up 45 percent year on year
- PAT margin: approximately 11.9 percent
Revenue and profit both growing at double-digit rates indicate the company is monetising its move into 765 kV and 400 kV classes, not just scaling volume. With US transformer lead times running at 2-3 years, Indian domestic suppliers are simultaneously absorbing global order shifts and accelerating domestic renewable interconnection.
5. India 765 kV Transmission Build-out — Microcosm
This Indo Tech order aligns with the Central Electricity Authority data showing 35.7 GVA of substation capacity added in the first four months of FY27 alone (see prior Post 618). The full FY27 target of 158,339 MVA is 40.1 percent above FY26’s 113,013 MVA. Against that backdrop, demand for 400 kV and 765 kV class transformers will continue to accelerate, and domestic manufacturers will capture the lion’s share.
6. Industry Outlook
The Indo Tech award is one of many signals that Indian transformer makers are moving up the voltage ladder. Looking ahead:
- Localisation accelerating: 500 MVA class orders fulfilled domestically, bypassing the 18-24 month import lead time
- Renewables pull: SECI’s continued tenders for utility-scale solar and wind keep main step-up transformer demand firm
- Capacity race: Indo Tech, Tamini, Voltamp, Crompton Greaves and others are all expanding; “Made in India” share of global transformer supply is rising
- Engineering validation: bulk delivery of 400 kV and 765 kV units will test the engineering depth of Indian suppliers
The USD 4.5 million Indo Tech order is small in absolute terms, but it underlines two converging trends: Indian domestic transformer makers are climbing into higher voltage classes, and the renewable interconnection build-out continues to pull capacity investment forward.