Rayzon Solar will commission a 5.1 GW TOPCon solar cell manufacturing facility in December 2026, with initial deliveries expected in the first quarter of 2027, the Surat-based company said in a press release issued on the sidelines of the Bharat Renewable Energy Summit 2026.
The facility will mark Rayzon Solar’s entry into solar cell manufacturing and expand its operations beyond modules. The company currently has 11.3 GW of installed solar module manufacturing capacity. Its stated objective is to build a more integrated domestic manufacturing chain and reduce dependence on imported solar inputs.
The December commissioning is the next step in a wider expansion plan. Rayzon Solar is also planning a 5.1 GW facility for ingot casting and wafer slicing, which it is targeting for development by 2028. The company is in discussions with multiple States to assess available incentives and finalise a location for the proposed investment.
In solar manufacturing, cells convert sunlight into electricity within a module, while ingots and wafers are upstream inputs used in the cell-making process. By adding these stages, the company is seeking greater control over its supply chain rather than relying primarily on externally sourced components. The proposed ingot and wafer facility would extend that integration further if the investment proceeds as planned.
Rayzon Solar said it remains committed to the cell project despite changing its funding plan from using proceeds of an initial public offering to debt financing amid market volatility. The company did not disclose the value of the investment or the terms of the debt financing in the supplied announcement.
The company has also completed a 19,800 tonnes-per-annum aluminium extrusion and anodising unit for producing solar module frames. The facility adds another manufacturing component to its operations and supports the company’s stated plan to expand its domestic solar manufacturing base.
Rayzon’s expansion comes as manufacturers seek to increase the share of locally produced components in India’s renewable-energy supply chain. The company’s announcement, however, provides no details on the expected employment at the new cell plant, its annual output schedule after commissioning, or the proposed location and investment size of the upstream ingot and wafer project.
The company is also pursuing research into tandem-junction technology and nano-coatings for next-generation solar modules, with product launches targeted by 2028. It said its research and development programme had resulted in three patent filings during the past year.
Rayzon Solar is separately working with US-based Caelux Corporation, which has operations in India, to bring high-performance modules to market. Caelux specialises in modules using glass coated with perovskites, a material designed to capture additional wavelengths of sunlight and increase electricity generation, according to the company.
The next stated milestones are the commissioning of the TOPCon cell facility in December 2026, the start of initial deliveries in the first quarter of 2027, and the finalisation of a location for the proposed ingot casting and wafer slicing project.
