Tata Power has completed the acquisition of a 100% equity stake in Ryapte Power Transmission Limited (RPTL) for a cash consideration of ₹10.87 crore, finalizing the deal on July 30, 2026. This transaction strengthens Tata Power's presence in the power transmission sector by adding a project special purpose vehicle (SPV) dedicated to infrastructure development in Karnataka. The acquisition aligns with the company's strategy to expand its transmission network capabilities through Build-Own-Operate-Transfer (BOOT) arrangements, enhancing grid stability and distribution capacity in the region.

The transaction was executed pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, following a Share Purchase Agreement (SPA) signed earlier in the year. In a disclosure to stock exchanges on July 30, 2026, Tata Power confirmed that the acquisition process was completed on this date. The company stated that the deal is not a related party transaction and that no promoter or group companies hold an interest in RPTL. The acquisition received the necessary approval from the Ministry of Power for the share transfer.

RPTL, incorporated on May 21, 2025, was specifically formed to establish a transmission system comprising approximately 250 km of line routes. The project scope includes high-voltage direct current (D/C) lines and underground cables connecting key substations in Karnataka. Key components include a 400 kV D/C line from Ryapte AIS Sub-station to the proposed 400/220 kV Doddathaggalli GIS Sub-station, and another 400 kV D/C line from the existing Kolar Sub-station to Doddathaggalli. Additionally, the project involves 220 kV D/C lines and underground cables linking Doddathaggalli to existing substations at Ekarajapura, Hosakote, and Sarjapura.

Beyond transmission lines, the project includes the establishment of major substation infrastructure. This involves setting up a 5x500 MVA, 400/220 kV substation at Ryapte in Tumkur District, equipped with 2x125 MVA 400 kV Bus Reactors. A second facility, a 3x500 MVA, 400/220 kV GIS substation, will be established at Doddathaggalli near Hosakote, also featuring 2x125 MVA 400 kV Bus Reactors. These installations are critical for enhancing grid stability and power distribution capacity in the region.

Project Infrastructure Overview

The following table summarises the key technical components and specifications of the RPTL project:

Project Timeline and Operational Details

The operational roadmap for RPTL is defined by a specific schedule for commercial operation. The Schedule Date of Commercial Operation (SCOD) for the SPV is set at 30 months from the date of acquisition, indicating when the transmission assets are expected to become fully operational and generate revenue. The BOOT model implies that Tata Power will own and operate these assets for the specified period before transferring them, in line with standard regulatory frameworks for such projects.

Strategic Implications

The acquisition of RPTL represents a targeted expansion into the transmission segment, allowing Tata Power to leverage specialised infrastructure projects without integrating them directly into its core generation or distribution businesses initially. By acquiring a fully formed SPV with clear regulatory approvals and defined technical specifications, Tata Power mitigates early-stage development risks. The involvement of the Ministry of Power underscores the strategic importance of these transmission links in Karnataka's power grid. The ₹10.87 crore consideration reflects the value assigned to the SPV's assets and future revenue potential under the BOOT framework, supporting Tata Power's broader objective of diversifying its energy portfolio and enhancing its role in national power infrastructure development.

Tata Power Renewable Energy Limited (TPREL), a subsidiary of The Tata Power Company Limited, conducted the groundbreaking ceremony for an 800 MW renewable energy project in Andhra Pradesh on July 30, 2026. The initiative, backed by an investment of ₹5,750 crore, aims to accelerate India's clean energy transition by integrating 400 MW of solar and 400 MW of wind capacity. This expansion supports Tata Power's long-term goal of achieving 100% clean energy by 2045 and adds to its existing renewable portfolio of 17.7 GW, which includes 9.8 GW under construction.

The event was attended by Shri Lokesh Nara, Hon'ble Minister of HRD, ITE&C and RTG, Government of Andhra Pradesh, who served as the Chief Guest. Dr. Praveer Sinha, CEO & Managing Director of Tata Power, also marked his presence at the ceremony in Kurnool. Other distinguished attendees included Shri T.G. Bharath, Hon'ble Minister for Industries & Commerce, Government of Andhra Pradesh; Shri K.E. Shyam Kumar, Hon'ble Member of Legislative Assembly, Pattikonda; Shri Kalava Srinivasulu, Hon'ble Member of Legislative Assembly, Rayadurg AC; and Dr. A. Siri, IAS, District Collector & Magistrate, Kurnool District.

Project Structure and Partnerships

The 800 MW project is split equally between solar and wind components across two locations in Andhra Pradesh. TPREL will serve as the project developer for the wind asset, while Suzlon Group will undertake the Engineering, Procurement, and Construction (EPC) scope for the 400 MW wind component located at Kanekallu, Ananthapuram. Mr. Girish Tanti, Co-founder of Suzlon Group, noted that this partnership strengthens their long-standing collaboration, having now crossed the 1 GW milestone together.

TPREL will also develop the remaining 400 MW project for NTPC. This includes a 200 MW Firm and Dispatchable Renewable Energy (FDRE) project incorporating a Battery Energy Storage System (BESS) with a storage capacity of 25 MW / 50 MWh. The balance 200 MW solar project capacity remains available for future allocation.

Infrastructure and Socio-Economic Impact

The project has secured 800 MW Inter-State Transmission System (ISTS) connectivity at the Ananthapuram II & Kurnool-4 CTUIL Substations. This connectivity enables efficient evacuation of renewable power through the national transmission network, ensuring robust transmission infrastructure. The implementation aligns with the Andhra Pradesh Integrated Clean Energy (ICE) Policy, which encourages large-scale investments in clean energy and sustainable industrial growth.

Spanning a total land area of 3,462 acres — including 2,700 acres for solar installation and 760 acres for wind development — the project is expected to create approximately 4,000 direct and indirect employment opportunities during the development, construction, and operational phases. Additionally, it will provide annual lease rental income to local stakeholders.

What the Numbers Show

The integration of 400 MW of wind and 400 MW of solar capacity highlights a strategic shift towards hybrid renewable models that offer more reliable power output compared to single-source projects. The inclusion of a 25 MW / 50 MWh BESS within the NTPC component further underscores the focus on dispatchable renewable energy, addressing grid stability challenges associated with variable renewable sources. With ISTS connectivity already secured, the project mitigates evacuation risks, a common bottleneck in large-scale renewable developments in India.

Shri Nara Lokesh stated, "Andhra Pradesh is committed to creating a world-class ecosystem that accelerates clean energy adoption... The groundbreaking of ceremony of 800 MW renewable energy project marks another important milestone in that journey." Dr. Praveer Sinha added, "By integrating 400 MW of solar and 400 MW of wind capacity, the project will contribute to the development of reliable and round-the-clock renewable power, supporting the nation's growing energy needs."