Vikram Solar is a solar manufacturer that has spent two decades turning a 12-megawatt assembly line into one of India’s largest module factories - and it is now racing to build everything behind that module, from cells to wafers to ingots, so it can stop buying the most expensive piece from someone else. Founded in 2005 by the family behind the Vikram India Group, the company set up its first plant in Falta, West Bengal with imported equipment and shipped its first international project - a 500-kilowatt plant in Germany - within four years. The pattern that explains everything that follows is a sequenced, three-stage build-out: modules first to establish scale and customers, then cells to capture the margin currently handed to suppliers, then wafers and ingots to become a fully integrated manufacturer on a single campus where a module travels from raw wafer to finished panel without ever leaving the site.
Business segments
Three engines, one logic - a module-manufacturing core that generates the cash and customer relationships, an EPC and services arm that pulls those modules into projects, and a battery-storage bet that extends the same factory-construction playbook into the next decade’s grid.
1. Solar module manufacturing: the factory that funds everything else
The company makes and sells solar panels at scale - 9.5 gigawatts of annual capacity today, rising to 15.5 gigawatts - and is building the cell and wafer plants that will turn it from an assembler into a true manufacturer.
- Scaling from assembly to integration - Vikram Solar currently manufactures modules across four plants in West Bengal and Tamil Nadu, with a fifth under construction, but its defining move is backward integration: a 9-gigawatt cell plant at Gangaikondan, Tamil Nadu, is on track to produce its first cell by end-2026, which will take the company to roughly 70% self-sufficiency in cells, the costliest input at about 40% of total raw material cost.
- A single-campus moat under construction - once the cell plant is running, the company will add a 6-gigawatt wafer-and-ingot facility on the same Gangaikondan site, creating a campus where ingots, wafers, cells and modules are made in adjacent buildings with zero transport cost, zero transit damage and no inventory buffers between stages - a structural cost advantage that standalone module assemblers cannot replicate.
- Technology that stays ahead of the mandate - the product line has already shifted entirely to high-efficiency N-type modules, and the company has ordered a 3-gigawatt back-contact cell plant, India’s first, which will produce cells with higher watt-peak than the industry baseline and create a technology gap versus peers still running older PERC lines.
- Orders that protect the margin - the order book stood at 8.2 gigawatts as of March 2026, with roughly 80% of those contracts carrying cell-price pass-through clauses, meaning the company can pass raw-material cost swings to its customers rather than absorbing them, while long-standing buyer relationships help hold blended selling prices steady.
- A distribution engine with higher margins - beyond large utility contracts, the company sells through a network of more than 110 authorised distributors, 100 system integrators and 550 dealers across 22 states, and this distribution segment carries a higher margin profile than the utility and commercial-industrial channels.
2. EPC and O&M services: the project-delivery arm that pulls modules into the field
The company designs, builds and maintains solar power plants - a smaller business by volume that serves as a captive demand channel for its own modules and a showcase for its technology.
- End-to-end project delivery - the EPC business handles everything from site survey and design through civil construction, erection and commissioning for utility, commercial, industrial and residential customers, with a total portfolio of 1.41 gigawatts executed or under construction.
- Long-term maintenance income - the O&M portfolio has grown to 1,396 megawatt-peak under long-term contracts, using drone inspections and AI-driven diagnostics to monitor performance, and these services are sold both to the company’s own EPC clients and to third-party plant owners.
- Marquee projects as credentials - the track record includes a 300-megawatt plant for NTPC in Rajasthan, the world’s first fully solar-powered airport at Kochi, and India’s first floating solar plant in Kolkata, each serving as a calling card that demonstrates capability to future buyers.
3. Battery energy storage: the next-decade bet built on the same factory playbook
Under the VION brand, the company is constructing a battery-storage manufacturing business - cells, modules, packs and containerised systems - targeting 15 gigawatt-hours of capacity by 2030, using the same phased build-own-operate approach it applied to solar modules.
- Products already shipping - the VION line launched with a home battery, an e-rickshaw pack, an advanced-chemistry cell module and a 5-megawatt-hour containerised cabinet for commercial and utility applications, and a 100-megawatt-hour order has already been secured from a prominent market player.
- Riding a structural gap - the company frames the opportunity against the fact that India’s installed battery storage is below 1 gigawatt-hour today but must reach 320 gigawatt-hours by FY35, a demand curve that makes building manufacturing capacity now a bet on a decade of undersupply.
Group structure and partners
A listed parent with a clean balance sheet, seven wholly owned subsidiaries that house the new ventures, and strategic partners that supply technology and procurement muscle.
- The listed entity and its subsidiaries - Vikram Solar Ltd is the parent, with VSL Green Power receiving IPO proceeds to fund the manufacturing build-out, VSL Powerhive running the VION battery business, and separate subsidiaries for recycling, the US, Singapore and Germany.
- Zero long-term debt - the balance sheet carries no long-term borrowings, the net-debt-to-equity ratio is 0.03, and the stated capex philosophy commits to keeping interest coverage above 2.5 times and net-debt-to-equity below 1.5 even at peak drawdown, so the integration programme is funded from a position of low leverage.
- Siemens and Jupiter as enablers - Siemens is executing the power infrastructure for the Gangaikondan cell plant and has partnered on a digital twin for the factories, while Jupiter International has signed a 2-gigawatt domestic cell procurement agreement worth roughly ₹2,000 crores to bridge the gap until Vikram Solar’s own cell lines ramp up.