Resonia Acquires Kurnool IV REZ Phase-II Transmission Project to Enable 3 GW Renewable Energy Evacuation

Resonia Ltd. has emerged as the successful bidder for the Kurnool-IV Renewable Energy Zone (REZ) Phase-II project, a critical Inter-State Transmission System (ISTS) initiative designed to facilitate the evacuation of 3 GW of renewable energy. The project involves the formal transfer of the Special Purpose Vehicle (SPV), Kurnool IV REZ Power Transmission Limited, from PFC Consulting Limited to Resonia. This infrastructure development is strategically focused on bridging the high-capacity power corridor between resource-rich districts in Andhra Pradesh and expanding demand centers in Telangana.

Acquisition Details and the TBCB Framework

On May 29, 2026, Resonia completed the acquisition of the project SPV, Kurnool IV REZ Power Transmission Limited, for a total consideration of ₹20,93,72,682 (approximately ₹20.94 crore). Following the execution of the Share Purchase Agreement, Resonia has been designated as the Transmission Service Provider (TSP) for the project.

The mandate was awarded under the Tariff-Based Competitive Bidding (TBCB) framework, a process managed by the bid process coordinator, PFC Consulting Limited (PFCCL). Resonia emerged as the L1 bidder in a competitive field that included industry incumbents such as Power Grid Corporation of India Limited (PGCIL), Adani Energy Solutions, HG Infra Engineering, and EnerGrid.

Technical Scope and Infrastructure Specifications

The Phase-II system is meticulously designed to handle specific injection targets at the Kurnool-IV end, providing for 2 GW of injection at the 220 kV level and 2 GW at the 400 kV level. The scope of work combines greenfield substation development with significant brownfield augmentation.

Substation Development

• 765/400 kV Shadnagar Station: Identified in technical planning as the Doma substation, this facility will feature 3×1500 MVA Inter-Connecting Transformers (ICTs) and 2×330 MVAr bus reactors. The development includes an explicit provision for the establishment of a 220 kV switchyard.
• Future Space Provisions (Shadnagar): To accommodate long-term grid growth, the site includes bay space for an additional 3×1500 MVA ICTs, 8×765 kV line bays (with SLR provision), 8×400 kV line bays (with SLR provision), and 10×220 kV line bays.

Augmentation Works

• Kurnool-IV Pooling Station: Resonia will augment this station by adding 2×1500 MVA (765/400 kV) and 6×500 MVA (400/220 kV) transformers. These upgrades are specifically engineered to facilitate the required 2 GW injection at the 220 kV level.

Transmission Lines The project entails the construction of high-capacity double-circuit (D/c) lines to link these key regional nodes.

Project Implementation and Timelines

The Kurnool-IV REZ Phase-II project requires a significant capital commitment, with an estimated total outlay ranging from INR 3,235 crore to INR 3,508 crore. The higher figure of INR 3,508 crore is the formal estimate provided by the Central Electricity Authority (CEA) in its 23rd NCT Agenda.

The project will be executed on a Build, Own, Operate, Transfer (BOOT) basis, carrying a standard 35-year operational license. Resonia is required to meet an implementation timeframe of 30 months to bring the assets into commercial operation.

Strategic Context: The Kurnool-IV REZ Roadmap

The Phase-II project is a vital component of the 7.5 GW comprehensive evacuation plan for the Kurnool-IV zone, supporting India’s national objective of reaching 500 GW of non-fossil fuel capacity by 2030.

• Regional Potential: The integration is essential for tapping into the 51 GW total renewable energy potential identified in Andhra Pradesh. This includes substantial district-wise potential: Kurnool (23 GW), Anantapur (20 GW), and Kadapa (8 GW).
• The Shadnagar Rationale: The decision to anchor the Kurnool-IV–Bidar 765 kV line at Shadnagar followed the rejection of the previously proposed Veltoor-II site. TGTRANSCO data indicated that Veltoor-II faced critical fault-level concerns and N-1 non-compliance. Conversely, Shadnagar is emerging as a major data center hub with a projected power demand of approximately 3,000 MW, making it the strategic choice for high-capacity injection.

Corporate and Industry Perspective

Resonia Ltd., formerly the transmission business of Sterlite Power (Sterlite Grid 32 Limited), has solidified its role as a leading private sector developer with this win. In a notable industry interplay, Resonia’s Phase-II augmentation works will take place at the Kurnool-IV Pooling Station being established by its competitor, PGCIL, under the Phase-I mandate (Powergrid Kurnool-IV Transmission Ltd).

Prashant Sinha, CEO of Resonia Ltd., stated that robust, high-capacity transmission infrastructure is the backbone of grid stability and a prerequisite for achieving national decarbonization goals as renewable deployment accelerates. The award comes amid high activity in the ISTS-TBCB sector, following concurrent developments such as PGCIL’s acquisition of the Tumkur II RE Transmission project in Karnataka, signaling continued private and public sector momentum in India’s green energy corridor.