Canadian Solar Inc. has announced the launch of its next-generation Low Carbon (LC) modules, marking a significant milestone in sustainable solar manufacturing. These new modules integrate advanced wafer innovations with heterojunction (HJT) cell technology, achieving an industry-leading carbon footprint of just 285 kg CO₂eq/kW. This makes them one of the lowest carbon footprint silicon-based solar modules available globally, setting a new benchmark for the industry.
The Low Carbon modules are designed for both utility-scale projects and commercial and industrial (C&I) applications. With an output capacity of up to 660 Wp and a module efficiency of up to 24.4%, they combine high performance with environmental responsibility. Deliveries of these modules are expected to begin in August 2025.
Canadian Solar has introduced several proprietary innovations in ingot, wafer, and HJT cell technologies that have collectively reduced carbon emissions and energy consumption during manufacturing. Key improvements include increasing ingot utilization by about 20%, which lowers emissions by 9.7% (equivalent to 30 kg CO₂ per kWp). Additionally, wafer thickness has been reduced to 110 μm, significantly lowering silicon consumption and emissions by up to 19 kg CO₂ per kWp.
Optimizations in HJT cell manufacturing have streamlined the production process to just four steps, cutting energy requirements further. The overall energy consumption during LC module production now stands at 105.62 MWh/MW, a saving of 8.8% — 10.7% compared to conventional TOPCon and BC solar module production methods.
Thomas Koerner, Corporate Senior Vice President of Canadian Solar, stated, “We are proud to introduce our new environmentally friendly, low-carbon modules, marking a key milestone in sustainable solar manufacturing. By combining advanced wafer innovations with heterojunction (HJT) cell technology, we are significantly reducing the carbon footprint of solar energy while maintaining the proven reliability and high efficiency Canadian Solar is known for.”
Together, these technological enhancements have shortened the carbon payback time of Canadian Solar’s LC modules by around 11% compared to conventional N-type silicon modules. This allows customers to install solar systems that not only deliver higher energy output but also contribute meaningfully to reducing the overall carbon footprint of renewable energy deployment.
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The LC modules are fully compatible with Canadian Solar’s inverter portfolio, including its 350-kW utility inverter range with a 40 A MPPT DC input current. This ensures optimal bifacial gain and stable performance, even in high-temperature environments of up to 45 °C. Canadian Solar will showcase its new Low Carbon modules at RE+ 2025 in Las Vegas, Nevada, from September 9 to 11, 2025. With this launch, the company has reinforced its commitment to delivering cutting-edge, efficient, and sustainable solar solutions that support global efforts toward cleaner energy generation.