Solar Module Manufacturing (Medium Scale) Project Report: Industry Trends, Plant Setup, Machinery, Raw Materials, Investment Opportunities, Cost and Revenue

Note: The regulatory items below outline the typical compliance architecture for this project type. Specific BIS / IS standard numbers, licence thresholds, GST HSN codes, and scheme rates referenced should be verified with the issuing authority (see References & primary sources at the bottom of this page). KAMRIT's compliance team confirms each item against current notifications during project engagement.

Solar module manufacturing (medium scale) projects in India work under MNRE at the centre, the SERCs at state level, and the DISCOM that signs the PPA. For a project of this scale (₹32.0 crore - ₹584 crore), the licence and clearance path KAMRIT walks through is:

• CEA Electrical Inspectorate sign-off plus grid synchronisation approvals from RLDC/SLDC
• Open-access wheeling and banking arrangement with the state DISCOM
• MNRE empanelment + ALMM (Approved List of Models and Manufacturers) listing for solar PV
• PPA with DISCOM, SECI, or NTPC (typically 25-year tenure) plus connectivity from STU/CTU
• Environmental clearance under EIA Notification 2006 above threshold capacity
• IEC 61215 / 61730 / 62804 product certification from accredited test labs

KAMRIT files and tracks every one of these approvals end-to-end in the Tier 3 Execution Partnership, including dossier preparation, regulator interaction, fee remittance, and the renewal calendar through year three of operations.

<p>The solar module manufacturing sector in India operates across a sharply structured capacity spectrum. Domestic module capacity expanded from between 15 GW and 18 GW in 2020, 2021 to between 109 GW and 125 GW by September 2025, and further to approximately 172,592 MW as reflected in the March 2026 ALMM data. However, a critical structural gap persists between nameplate capacity and actual utilization.

Effective annual production is estimated at 70 GW to 80 GW due to utilization rate constraints, while domestic annual demand sits at approximately 38 GW to 40 GW. This dynamic creates a capacity surplus at the national level, yet it simultaneously opens strategic niches for medium-scale manufacturers who can differentiate through technology tier, customer segment focus, and supply chain agility.</p><p>The demand-supply calculus is shaped by a fundamental upstream import dependency that defines the sector's economics. India imports roughly 85% of its solar cell requirements and approximately 98% of its polysilicon, with domestic cell manufacturing capacity standing at only 25 GW as of March 2025.

In FY 2024, 25, India imported over 35.26 million solar photovoltaic modules valued at USD 1.6 billion, primarily sourced from China, which accounts for 60% to 80% of total module and cell imports, with supplementary volumes from Vietnam, Malaysia, and Indonesia. This upstream bottleneck means that raw material costs constitute 80% to 85% of total operating expenses (OpEx) for a solar module manufacturing plant, with core material inputs including polysilicon, silicon wafers, solar cells, tempered glass, ethylene-vinyl acetate (EVA) encapsulants, aluminum frames, and silver for metallization paste. Utility costs account for only 5% to 10% of total OpEx.</p><p>India's solar module manufacturing is geographically concentrated in distinct industrial clusters.

The Gujarat cluster leads with a capacity of 80,060 MW, while Tamil Nadu and Rajasthan constitute the other major manufacturing hubs, creating regional supply chain ecosystems that medium-scale entrants can plug into. The organized sector, dominated by large-scale original equipment manufacturers, controls the majority of the capacity, but a significant unorganized segment persists, offering competitive pressure and partnership opportunities for medium-scale players seeking to capture specific market tiers.</p>

Project-specific demand drivers

• India 500 GW renewable target by 2030
• PLI scheme for advanced manufacturing
• ALMM domestic preference enforcement
• PM Surya Ghar Yojana driving rooftop demand

<p>Medium-scale solar module manufacturing in India involves a defined sequence of process steps, each requiring specialized equipment. The process begins with cell sorting and testing, where automated systems sort photovoltaic cells by electrical parameters (current, voltage, efficiency) and visual defects using high-resolution optical inspection machines. This is followed by the stringing process, where infrared (IR) or laser soldering machines connect individual cells into series strings to achieve target voltage configurations.

The strings are then laid up in a glass-cell-backsheet sandwich arrangement before entering the laminator machine, which encapsulates the assembly under heat and vacuum using EVA film to produce a durable, weather-resistant panel.</p><p>The technology architecture of the sector is undergoing a significant transition from traditional PERC (Passivated Emitter and Rear Contact) cells to advanced n-type cell architectures. Tunnel Oxide Passivated Contact (TOPCon) technology has emerged as the dominant next-generation choice, with domestic TOPCon manufacturing capacity investments totaling ₹18,000 crore between 2023 and 2025. Heterojunction Technology (HJT) represents another advanced pathway, while emerging Perovskite-Silicon tandem cells are achieving laboratory efficiencies of up to 34.85% (LONGi, 2025) and commercial modules reaching 25.44% efficiency (Trina Solar, 2025).

Modern crystalline silicon and HJT module efficiencies in the market currently range between 18% and 24.9%, with industry leaders such as Maxeon and REC Group achieving commercial efficiencies of 22.6% to 24.9%.</p><p>Medium-scale plant capital requirements reflect the technology tier pursued. Core machinery includes solar cell stringer machines, laminator machines, solar panel testing machines, framing machines, and junction box installation machines. Capital expenditure ranges from ₹10 crore to ₹25 crore (approximately $1.2 million to $3 million USD) for a medium-scale facility, with equipment requirements extending to tabber-stringers, layup stations, electroluminescence (EL) testers, and flash testers for power measurement.

Medium-scale capacity is typically defined as 20 MW to 400 MW annual output, with the segment often subdivided into small-to-medium at 20, 50 MW and mid-scale at 100, 400 MW. Core machinery CapEx for a 20, 50 MW turnkey line ranges from $1.5 million to $5 million, while a 100 MW line requires $3 million to $5 million. Thin-film technologies, including Cadmium Telluride (CdTe) and Copper Indium Gallium Selenide (CIGS), capture approximately 10% of the active cell market as direct material alternatives to crystalline silicon, though crystalline silicon remains the dominant technology pathway for Indian manufacturers.</p><p>A medium-scale solar module manufacturing plant with a capacity of 100 MW to 500 MW annual output requires a total workforce of approximately 80 to 150 employees per shift configuration.

The workforce composition is characterized by a skilled-to-semi-skilled ratio of roughly 30% to 40% skilled workers against 60% to 70% machine operators requiring secondary education and manual dexterity training. Automation trends in the sector include machine vision systems for defect detection, automated handling systems, and AI-powered quality control, though the level of automation varies significantly between large-scale automated lines and medium-scale operations.</p>

For a solar module manufacturing (medium scale) project at ₹32.0 crore - ₹584 crore CapEx with a 2.6 - 4.2-year payback, the bank-loan-ready Means of Finance KAMRIT recommends is 35-45% promoter equity and 55-65% debt. The primary lender pool for this scale is SBI Project Finance, Axis, ICICI, Yes Bank, IDFC First plus consortium where above ₹100 cr. The applicable overlay schemes that materially compress effective cost-of-capital are PLI scheme participation, state mega-project incentive package, EXIM Bank for exports. The Tier 2 Bankable DPR includes the full vendor-quote-backed CapEx schedule, OpEx model, 5-year revenue projection split by SKU and channel, working-capital cycle, ROI/NPV/IRR, break-even, and sensitivity in three scenarios (base / bull / bear). The model is structured for direct submission to a commercial bank or NBFC credit appraisal team.

<p>Upstream supply chain dependency represents the most significant structural risk for medium-scale solar module manufacturers. India imports approximately 85% of its solar cell requirements and roughly 98% of its polysilicon, with domestic cell manufacturing capacity at only 25 GW as of March 2025. This upstream import dependency means that raw material costs constitute 80% to 85% of total operating expenses, leaving medium-scale manufacturers exposed to global commodity price volatility, currency fluctuations, and geopolitical disruptions in supply chains dominated by Chinese producers.

Cell manufacturing costs in India remain roughly 40% higher than in China due to reliance on imported machinery, silver paste, and silicon wafers, compressing margins for domestic manufacturers competing with cheaper imports.</p><p>Import competition continues to exert downward pressure on domestic pricing. In FY 2024, 25, India imported over 35.26 million solar photovoltaic modules valued at USD 1.6 billion, primarily sourced from China (60% to 80% of total imports), alongside Vietnam, Malaysia, and Indonesia. Imported module prices ranged from USD 0.18 to USD 0.22 per watt peak ($W_p$) in 2025, compared to domestic prices of USD 0.24 to USD 0.28 per watt peak ($W_p$), creating a persistent price gap of approximately 20% to 30% that domestic manufacturers must bridge through quality differentiation, service value, or policy-supported procurement preferences.

The global market for key clean energy technologies exceeded $1.1 trillion in 2025, and solar PV module prices fell by roughly 50% between 2023 and 2025, accelerating the pace at which imported products become price-competitive.</p><p>A critical structural challenge is the nameplate-versus-operational capacity gap. Out of $43.1 billion in announced domestic solar manufacturing investments since 2022, only $14.5 billion represents operational facilities, with $22.2 billion under active construction and $6.4 billion in early planning. This gap signals that a portion of the reported capacity may face delays, funding shortfalls, or technology obsolescence risks before reaching commercial production.

Medium-scale entrants must carefully assess the competitive density that will result when announced capacity fully comes online, particularly given that effective annual production already trails nameplate capacity by a significant margin.</p><p>Technology obsolescence risk is acute in the solar module sector, where cell architecture transitions occur on 2, 3 year cycles. The shift from PERC to TOPCon and the emerging relevance of HJT and Perovskite-Silicon tandem technologies require continuous capital reinvestment in equipment and process upgrades. Medium-scale manufacturers with limited financial reserves face heightened risk of technology obsolescence, particularly as large-scale players deploy capital-intensive TOPCon lines totaling ₹18,000 crore in investments between 2023 and 2025.

Additionally, supply chain bottlenecks persist across upstream inputs, with the sector still heavily reliant on imported machinery, silver paste, and silicon wafers, creating vulnerability to supply disruptions and cost escalations that can disproportionately affect smaller-scale operators with less negotiating leverage.</p>