Solex Energy 10 GW expansion: $1.5bn India plan by 2031

What Solex Energy announced and why it matters

Solex Energy has outlined a five-year investment plan to expand its solar manufacturing footprint in India, moving beyond modules into a more integrated value chain. The company is planning an investment of $1.5 billion over the next five years to build a fully integrated solar manufacturing ecosystem, according to comments made to ET EnergyWorld. The plan comes as India’s solar supply chain is being pushed toward domestic manufacturing, with policy support aimed at reducing import dependence.

Alongside the long-term capacity buildout, Solex has also disclosed a sizeable near-term order win in high-efficiency modules. The company received a work order worth ₹276 crore from a domestic independent power producer for the manufacture and supply of N-type TOPCon solar PV modules. Multiple market updates noted that the order improved visibility into Solex’s order book and added to revenue visibility for the execution window.

Capacity ramp-up: modules, cells, wafers and ingots

Chetan Shah, Chairman and Managing Director of Solex Energy, said the company is expanding from its current 4 GW solar module manufacturing capacity. The stated target is to scale to 10 GW each of solar modules and solar cells. In addition to modules and cells, Solex plans to add upstream capability with 2 GW of wafer and ingot capacity.

This combination marks a shift toward end-to-end solar manufacturing, spanning key steps of the supply chain rather than only module assembly. The move can change how a manufacturer manages input sourcing, quality control, and delivery timelines, particularly for premium technologies such as TOPCon. Solex’s plan, as described, is framed as a response to the domestic self-sufficiency push and the broader scaling up of renewable energy projects.

ALMM approval for 3.78 GW facility

Solex also stated that its 3.78 GW solar module facility has received approval under the Approved List of Models and Manufacturers (ALMM). ALMM inclusion matters for module makers because it determines eligibility for certain categories of government-supported procurement and can influence demand from developers executing projects with specific compliance requirements.

The approval was referenced as part of the company’s recent updates, alongside the capacity expansion plan and order wins. While the company’s current module capacity is described as 4 GW, the ALMM-approved facility size is cited as 3.78 GW in the provided information.

The ₹276 crore TOPCon order: what is being supplied

Solex Energy’s disclosed work order is for N-type TOPCon solar PV modules, including 615 Wp and 620 Wp variants. The modules mentioned are glass-to-glass and described as G12R format. The order value is ₹276 crore and, according to the regulatory filing referenced in the updates, the value is inclusive of applicable duties and taxes.

The customer is described as a domestic independent power producer. Solex clarified that the transaction does not fall under related-party dealings. For investors tracking execution risk, the combination of defined specifications, a stated client category, and a fixed delivery schedule provides more clarity than generic order disclosures.

Execution timeline and delivery window

The supply schedule for the ₹276 crore order is stated to be between February and May 2026. Another update notes that the modules must be supplied by May 2026, aligning with the same end date. A four-month execution window can place focus on production planning, raw material availability, and logistics.

Solex has also been described as supplying solar modules to Indian developers and independent power producers, and to large global companies for domestic and international projects. That mix suggests it operates across multiple buyer segments, although the disclosed order in this case is from a domestic IPP.

Stock reaction reported across market updates

Market updates cited a positive stock reaction following the order disclosure. One update stated Solex Energy rose 1.68% to ₹1,164.80 after the order announcement. Another reported that shares surged 6.09% to ₹1,187.90 following the same ₹276 crore order win.

These figures were reported in separate summaries, and the differences likely reflect different timestamps or market conditions when the price checks were taken. What is consistent across the updates is that the order was viewed as supportive for the company’s near-term order book visibility.

Additional context: earlier order from Zelestra Group

One update also referenced an earlier work order in October 2025 from Spain-based renewable energy project developer Zelestra Group. The value cited was over ₹544 crore (₹5.44 billion), for manufacturing and supplying N-type TOPCon 615/620 Wp glass-to-glass solar modules. The completion was described as being in tranches by February and November 2026.

This context matters because it indicates Solex has been receiving orders specifically for TOPCon modules in the 615/620 Wp range across multiple buyers. It also shows that the company’s order pipeline has included both domestic and international counterparties.

Key facts at a glance

Market impact and why the expansion plan is being watched

The disclosed order adds near-term volume visibility in a segment where efficiency and durability are key selling points, with TOPCon increasingly positioned as a higher-efficiency technology. At the same time, the company’s plan to build capacity across modules, cells, wafers, and ingots signals an intent to participate across more of the solar manufacturing chain.

A move from 4 GW of modules toward 10 GW in modules and 10 GW in cells suggests a meaningful scale-up that would require capital, execution discipline, and stable demand. The addition of wafer and ingot capacity is significant because it addresses upstream steps that can influence cost structure and supply assurance. The ALMM approval for the 3.78 GW facility is also a relevant operational milestone in an environment where compliance and sourcing requirements can shape procurement decisions.

Conclusion

Solex Energy’s recent updates combine a large capacity roadmap with a specific, time-bound ₹276 crore order for N-type TOPCon modules scheduled for execution between February and May 2026. The company’s stated plan is to scale modules and cells to 10 GW each and add 2 GW of wafer and ingot capacity, supported by a $1.5 billion investment over five years. The next key markers to watch, based on the disclosed information, are progress on capacity additions and the timely execution of the February to May 2026 supply schedule.