Tata Power Bets ₹6,500 Cr on Domestic Solar Wafer Production

Tata Power Renewable Energy Limited (TPREL) plans to invest up to ₹6,500 crore to establish 10 GW of solar photovoltaic (PV) ingot and wafer manufacturing capacity. The company expects this upstream solar venture to pay for itself in about five years.

Key Announcement: 10 GW Solar Wafer Plant Planned

Tata Power's subsidiary, TPREL, has announced plans to expand into upstream solar manufacturing.

The company will invest up to ₹6,500 crore to set up a 10 GW capacity for producing PV ingots and wafers.

This move is designed to achieve backward integration in the solar value chain and cut reliance on imports, especially from China.

TPREL anticipates recouping its investment in roughly five years.

Boosting India's Solar Supply Chain

This investment allows TPREL to control more of the solar value chain, moving beyond cells and modules into foundational components. It supports India's push for self-reliance in solar manufacturing, aided by the Production Linked Incentive (PLI) scheme.

By producing ingots and wafers domestically, Tata Power can improve supply chain security, manage costs, and benefit from government support for local manufacturing. This strengthens its position in a sector that has historically relied heavily on imported upstream components.

Building on Growth in Solar Manufacturing

India's solar sector receives substantial support from government incentives like the PLI scheme, aimed at building domestic manufacturing. While these programs have driven growth, challenges persist in achieving cost competitiveness and reducing dependency on imported materials such as ingots and wafers.

Tata Power has been steadily growing its solar presence. Its subsidiary, TP Solar, began solar cell production at a 4.3 GW plant in Tamil Nadu in September 2024. The company has broader capital expenditure plans, earmarking ₹1.25 trillion by FY30 for clean energy projects, targeting 30 GW total capacity by FY30.

Notably, TPREL previously announced plans for a similar 10 GW ingot and wafer plant in Nellore, Andhra Pradesh, with an investment of around ₹6,675 crore, highlighting a consistent strategic focus on this segment.

Key Impacts of the Investment

• Direct Control: Tata Power will directly manage the production of crucial solar components like ingots and wafers, reducing reliance on outside suppliers.
• Reduced Import Reliance: The plan aims to lessen dependence on China and other nations for these key upstream materials.
• Supply Chain Stability: Enhanced control over the supply chain offers greater stability and predictability in sourcing materials for its own operations.
• Value Chain Growth: TPREL moves into a higher segment of the manufacturing chain, aiming for better margins and competitiveness.
• Policy Alignment: The investment is set to leverage and benefit from India's policies promoting domestic solar manufacturing.

Potential Challenges Ahead

• Execution: This ₹6,500 crore investment requires strong project execution and timely completion to meet targets and payback periods.
• Capital Costs: Upstream solar manufacturing, particularly for ingots and wafers, is very capital-intensive and technologically demanding.
• Global Price Swings: While reducing import reliance, the company will still manage global price swings for raw materials.
• Regulatory Shifts: While supportive, evolving solar policies could affect long-term project economics.
• Existing Disputes: Tata Power faces ongoing legal disputes with state electricity distribution companies and a regulatory case in Odisha, which could cause financial or operational distractions.

Competitors Also Expanding

Tata Power's move into large-scale upstream solar manufacturing puts it among other major Indian companies in the sector. Waaree Energies is building a similar 10 GW integrated ingot and wafer facility in Nagpur with an investment of roughly ₹6,200 crore. Adani Solar also has integrated ingot and wafer production, with plans for a 10 GW integrated value chain facility. Reliance Industries is similarly planning extensive integrated solar manufacturing. These ventures show a strong industry trend toward building a full domestic solar supply chain.

India's Solar Manufacturing Snapshot

India's solar manufacturing capacity as of June 2025 included 3.3 GW polysilicon, 5.3 GW wafer, 29 GW cell, and 120 GW module, partly thanks to the PLI scheme.

However, the PLI scheme faces challenges, with only 31 GW of its 65 GW module capacity target met by June 2025.

Key Follow-Ups

• Project Milestones: Track the construction and launch timeline for the 10 GW plant.
• Technology: Monitor the specific technologies TPREL will use for ingot and wafer production.
• Cost Competitiveness: See how TPREL matches global players on cost.
• Subsidiary Performance: Monitor TPREL's financial performance and its contribution to Tata Power.
• Policy Use: Observe how the project uses government incentives and aligns with India's renewable energy manufacturing goals.