Gautam solar unveils revolutionary N-Type TOPCon solar modules in India

Game-changing solar technology promises higher efficiency, longevity, and cost savings, positioning India at the forefront of renewable energy.

Gautam Solar is taking center stage in the global clean energy revolution, proudly presenting its cutting-edge N-type TOPCon (Tunnel Oxide Passivated Contact) Solar Modules at the Renewable Energy India (REI) Expo 2023, marking a historic first in India. From October 4th to 6th, the world will witness the debut of Gautam Solar’s groundbreaking N-type TOPCon Solar Modules, boasting an impressive wattage range of 565 to 580 Wp. These modules are ideally suited for ground-mounted projects and boast a remarkable maximum efficiency of 22.45 percent. They have undergone rigorous certification processes conforming to UL and IEC Standards and are readily available for the discerning US and European markets.

TOPCon represents a state-of-the-art Solar Module Production Technology, involving the application of a thin tunneling oxide layer on an N-Type Silicon Substrate, followed by a layer of highly doped Poly Silicon and Passivated Contacts. This ingenious design facilitates the passage of charge carriers while minimising recombination losses, thanks to the tunnel oxide layer, and reduces surface recombination through the passivated contacts.

N-type Cells distinguish themselves by doping the base silicon layer with Phosphorous rather than Boron, as seen in P-type Cells. This unique approach generates free electrons, significantly enhancing cell efficiency and consequently, the overall module performance. As a result, Gautam Solar’s N-type TOPCon Solar Modules outshine P-type Solar Modules by offering a 5 percent increase in power output every year, courtesy of their heightened cell efficiency.

In terms of longevity, Gautam Solar’s N-type TOPCon Solar Modules exhibit superior performance with degradation rates of merely 1 percent in the first year and a mere 0.4 percent in subsequent years, a notable improvement over P-type Modules which experience 2 percent degradation in the first year and 0.55 percent in subsequent years. This extended lifespan means that they degrade only to 87.4 percent of their initial rated power after 30 years, compared to P-type modules which decline to 84.8 percent over a 25-year lifecycle.

Moreover, these N-type modules provide additional benefits such as 3.26 percent reduction in Balance of System (BOS) costs and a 1.56 percent decrease in Levelized Cost of Electricity (LCOE).

These modules are anchored in M10 Cells and comprise 144 half-cut cells manufactured using a Non-Destructive Cutting Process, ensuring enhanced low-light performance and minimal chances of micro-cracks. Additionally, they feature a multi-busbar design with round ribbon connectors, reducing electrical losses and optimizing light utilisation. The modules will be available in both Monofacial and Bifacial variants, with the latter yielding an extra 10-30 percent power output from the rear side, contingent on installation conditions.

Gautam Mohanka, CEO of Gautam Solar, emphasised their commitment to leveraging technological innovations for holistic transformation within the solar energy sector. As one of the select Indian companies holding patents and intellectual property rights in the solar industry, Gautam Solar’s focus on cutting-edge technology remains unwavering, exemplified by the introduction of their N-type TOPCon Solar Modules.

Furthermore, Gautam Solar has enriched its production capabilities with an A+ grade production line, incorporating N-type TOPCon machines from a leading equipment supplier. This achievement solidifies Gautam Solar’s position as the second company in India to accomplish such a feat, all within their state-of-the-art facility located in Haridwar.