

The efficiency of photovoltaic cells has improved dramatically over the past few decades, thanks to advances in technology and materials
. The average efficiency of commercial solar panels has risen from around 15% in the early 2000s to over 22% today, with some cutting-edge models achieving efficiencies above 25%. This growth has made solar energy more viable for widespread use, reducing the cost per watt and making solar installations more accessible to consumers and businesses alike.