Do Solar Panels need to Boost Efficiency to stay ahead of Emerging Technologies in India?

As India pushes forward in its energy transition, the conversation around solar energy’s role is heating up. With rooftop solar panels currently delivering an efficiency of around 22-24%, a typical home in India would require about 10-15 panels to generate 5,000 kWh/year, enough to cover the average energy consumption of the household. But with emerging technologies like hydrogen, biofuels, wind and pumped storage projects (PSP) gaining momentum, some may wonder: What can solar do to stay relevant?

Here’s the challenge: Increasing the efficiency of solar panels year over year is tough. The solar cell itself isn’t the only factor that impacts the overall module efficiency, so pushing the boundaries comes with limitations. But there are ways to innovate beyond just the cells:

🔄 Tracking Systems: By using solar tracking technologies, panels can follow the sun’s movement, increasing energy generation by 15-30% without modifying the cells themselves. This is especially useful in large solar farms but is now becoming a viable option for residential setups.

✨ Coating Technologies: Self-cleaning and anti-reflective coatings can significantly boost efficiency by reducing dirt buildup and minimizing light reflection, allowing more sunlight to penetrate the cells.

⚡ Bifacial Solar Panels: These panels can capture sunlight on both sides, increasing total energy output by up to 10-15%. This innovation maximizes land use and energy generation without increasing the footprint.

Along with these advances, solar remains one of the most cost-effective energy solutions in India, with the price hovering around ₹2.5-3.5/Watt. Compared to hydrogen and biofuel technologies, which will still be more expensive at scale, solar will likely maintain its foothold in the near future. However, strategic improvements in tracking, coatings, and panel designs alongside an eventual increase in efficiency of panels will ensure solar remains a key player in India’s renewable energy landscape.

The road to sustainability is filled with exciting innovations, and solar energy is far from losing its shine. ☀️