Indian Manufacturer Pushes Module Efficiency to 23.32% with New TOPCon Range
As India's solar manufacturing sector moves from PERC to n-type TOPCon, domestic producers are under pressure to match the efficiency benchmarks set by global module giants — or risk losing ground on large-scale tenders.
Greater Noida-based Bluebird Solar has introduced its G12R n-type TOPCon bifacial module series, achieving peak power output of 630Wp and a module efficiency of 23.32%. The range is designed for utility-scale, commercial and industrial (C&I), and rooftop applications, according to an announcement published 12 June 2026 by pv magazine India. The modules are built on G12R rectangular wafers and incorporate 132 half-cut cells with 16-busbar (16BB) technology, backed by a 12-year product warranty and a 30-year power output warranty.
Why the Efficiency Number Matters
A module efficiency of 23.32% sits at the higher end of what Indian domestic manufacturers have publicly disclosed for commercial product lines. In the context of India's Approved List of Models and Manufacturers (ALMM) framework, which prioritises domestic sourcing for government-funded projects, efficiency improvements carry direct commercial implications: higher wattage per module reduces the number of units required per project, lowering balance-of-system costs and improving land utilisation. For Bluebird Solar, the launch is a positioning move in a segment where Chinese manufacturers have long set the benchmark.
The G12R Architecture and Bifacial Advantage
The G12R wafer format, now widely adopted across the global module industry, allows a higher cell count within a given panel footprint, increasing power density without proportionally scaling panel area. The bifacial glass-to-glass construction captures reflected irradiance from the rear surface, adding incremental energy yield that improves plant-level performance over time. The 16BB cell architecture reduces resistive losses, which has a measurable effect on degradation rates over the module's operational life.
Bluebird Solar CEO Rohit Tikku noted in the announcement that the industry is moving toward high-efficiency n-type solutions and that the company's focus is on long-term value for project developers. Director Akshay Mittal pointed to lower degradation and better project economics as the design priorities for the G12R series. The company's existing manufacturing base in Greater Noida operates at 2.5 GW of annual capacity, covering both mono PERC and TOPCon product lines.
The Question the Launch Leaves Open
What the announcement does not address is ALMM registration status for the G12R module series. For Indian solar developers accessing government-tendered capacity, ALMM listing is a prerequisite, not a commercial preference. Without confirmed ALMM inclusion, the new module's addressable market is limited to private C&I and open-access segments until certification is obtained. It is also worth noting that the 630Wp specification is not unique to Bluebird Solar: Gautam Solar launched a module at the same wattage in September 2025, which means Bluebird enters a domestic specification already occupied by at least one Indian competitor.
What to Watch
- Whether Bluebird Solar secures ALMM listing for the G12R series, which would open access to utility-scale government tenders and significantly expand the module's commercial reach.
- How domestic TOPCon module pricing evolves through 2026 as more Indian manufacturers move capacity from PERC to n-type, and whether cost parity with imported modules narrows further.
- The pace at which C&I and rooftop segments absorb higher-wattage modules as a standard specification, given that 630Wp formats require structural compatibility with existing mounting systems and inverter configurations.