Borosil Renewables manufactures solar glass for photovoltaic modules in India and recently launched an asset-light rooftop solar kit division. The core business currently operates at its 1,000 TPD capacity limit, generating a 35% EBITDA margin in Q1 FY27, but a 600 TPD expansion is set to commission by Q4 FY27, driving a 60% increase in total capacity and revenue. Over the next 18-24 months, this step-change in volume, combined with captive renewable power savings of INR18 crores annually, is projected to add INR80-85 crores to quarterly EBITDA and lift turnover toward an INR4,000 crore target. The key execution watchpoint is the planned 90-day sequential shutdown of older furnaces for refurbishment in 2027, which could temporarily offset the new capacity gains if not managed precisely.
The company's economics persist through a combination of regulatory protection and high customer switching costs. Anti-dumping duties on Chinese and Vietnamese solar glass, along with a 9.71% countervailing duty on Malaysian imports extended for five years, benchmark domestic pricing against landed import costs. Domestic module makers value dependability and quality to avoid disrupting high-speed production lines, creating stickiness for the top 10 customers who account for 65-68% of sales volume. With domestic solar glass capacity at 2,600 TPD against a requirement of 11,000 TPD, the supply gap remains wide enough to absorb the new capacity without pricing pressure.
The inflection point is the Q4 FY27 commissioning of two 300 TPD furnaces, increasing total capacity to 1,600 TPD. Management expects revenue to remain flat at a INR400-410 crore quarterly run rate until December 2026, then jump 60% as new capacity comes online. The new rooftop solar division will contribute INR36 crores in FY27 revenue with single-digit EBITDA margins, acting as a secondary growth engine. By FY28, the core glass business should sustain 30-33% EBITDA margins while the rooftop division scales, supported by ALMM-II and ALMM-III policies driving domestic cell and wafer capacity to 75 GW and 55-60 GW respectively.
Management has consistently overdelivered against its own guidance. In February 2025, they guided a 500 TPD expansion, later revised to 600 TPD by July 2025, and maintained the December 2026 commissioning timeline. They guided EBITDA margins a couple of percent above 28% and delivered 33.4% in Q3 FY26. Pricing guidance of INR 135/mm was exceeded with actual realizations of INR 149.97/mm. The INR950 crore expansion capex is fully funded with no equity dilution planned, and the balance sheet is further strengthened by the complete write-off and deconsolidation of the insolvent German subsidiary.
The quantified earnings path requires the new 600 TPD furnaces to stabilize within the budgeted 3-month trial period and the SG1/SG2 refurbishment shutdowns to proceed without overlapping the new capacity ramp. The single most important watchpoint is the 90-day sequential shutdown of older furnaces planned for Q4 FY27 to Q2 FY28, which could temporarily reduce volumes and compress margins if execution slips. If the shutdowns are managed precisely and domestic demand grows as projected, the company is positioned to scale turnover to INR4,000 crores over the next 3-4 years while maintaining ROCE above 25%.
companyname: Borosil Renewables Limited ticker: BORORENEW sector: Solar Glass Manufacturing / Renewable Energy Borosil Renewables makes low-iron textured solar glass, the tempered cover sheet that sits on the front of a solar panel. It is India's first and largest solar glass manufacturer, running a 1,000 tons per day (TPD) plant at Bharuch, Gujarat, and it carries the Borosil Group's six-decade glass manufacturing legacy. Low iron textured solar glass is effectively the entire company: it acco...
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FY27 production capacity guided to increase by 60% driven by new 600 TPD furnace expansion
Guidance upgradedoverdeliver
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