Gautam Solar launched and showcased its advanced and transforming N-type TOPCon (Tunnel oxide passivated contact) solar modules at the Renewable Energy India (REI) Expo 2023.
Gautam Solar’s revolutionary N-type TOPCon Solar Modules will be available in the wattage range 565 – 580 Wp. These modules are best suited for ground mounted projects and have a maximum efficiency of 22.45 per cent.
These modules have been certified as per UL & IEC Standards and are already available for the US and European markets.
TOPCon is a state-of-the-art Solar Module Production Technology in which a thin tunneling oxide layer is applied on an N-Type Silicon Substrate, followed by a layer of highly doped Poly Silicon and Passivated Contacts. The tunnel oxide layer allows charge carriers to pass while minimizing recombination losses. The passivated contacts reduce surface recombination.
In N-type Cells, the base silicon layer is doped with Phosphorous instead of Boron like in P-type Cells. As a result of this, free electrons are generated, which increases the efficiency of the cells, and hence the resulting modules.
Because of this difference, Gautam Solar’s N-type TOPCon Solar Modules offer 5 per cent more power every year compared to P-type solar modules, on account of the increased cell efficiency.
Lower degradation rate
Gautam Solar’s N-type TOPCon Solar Modules also have lower degradation rates of 1 per cent in first year and 0.4 per cent in subsequent years unlike 2 per cent in first year and 0.55 per cent in subsequent years for P-type Modules. This increases the longevity of the solar modules. It degrades only to 87.4% of its initial rated power at the end of 30 years compared to P-type modules which degrade to 84.8% in their 25 years lifecycle.
In addition to the above, Gautam Solar’s N-type modules also provide BOS Cost Savings of 3.26 per cent and LCOE reduction of 1.56 per cent.
Also read: Gautam Solar Supplies 70 Mw Of High-Efficiency Solar Panels
Better low-light performance
These modules are based on M10 Cells and are composed of 144 half-cut cells produced using non-destructive cutting process for better low-light performance and negligible chances of micro-cracks. In addition, they feature multi-busbar design with round ribbon connectors for lower electrical losses and better utilization of light. The modules will be available in both mono-facial and Bifacial variants, with the latter providing an additional 10-30 per cent power from the rear side, depending on the installation conditions.
Gautam Solar added A+ grade production line, with N-type TOPCon machines from a leading equipment supplier, becoming only the second company in India to do so, at its state-of-the-art factory in Haridwar.
