Abstract
lifting efficiency by nearly 19% less than in cooler months. Flat setups drop performance faster than those tilted near 40 °, thanks to steeper slopes using sunlight plus gravity to clear gunk naturally. Instead of Solar energy has rapidly emerged as one of the most significant contributors to the global transition toward sustainable and renewable electricity generation systems. This shift did not happen overnight; since tracking began, installations have climbed rapidly, hitting over thousand billion watts by 2022 alone. Growth continues to increase by approximately a quarter each year compared with previous years. Sunlight turned into power plays a significant role in how countries run their lights, machines, and homes. Attention has been focused on these systems as nations look beyond older fuels. However, there is a snag: when dust settles, dirt piles up, birds leave marks, or smoke coats the glass, the performance decreases significantly. These issues have led to efforts to find better cleaning methods, drawing insights from four core research papers and their supporting documents. Wiping by hand appears early, then shifting components take over, followed by unseen electrical forces, and robots inching across the panels like insects. Peering into tiny computer systems reveals Arduino chips communicating with programmable logic controllers, teaming with small gear-driven motors operating on direct current (DC). Harsh scrubbing cloths are slowly being replaced with blends of microfiber and nylon, which remove grime without scratching the surfaces. Sunlight-blocked ties are directly related to dust thickness: once the accumulation crosses 10 grams per square meter heading toward 38, the electricity output decreases anywhere from 13 % to nearly two-fifths. Deserts push it further; some sites lose 86 % under brutal conditions. Surprisingly, a smooth coat of fine grit often dims solar gain worse than chunky trash spread unevenly, casting shadows that heat cells internally and create hazardous zones within the modules. It turns out that where you are changes things; over half of the global dust trouble hits Asia, much like how seasons shift what happens on panels when cleaned in hotter months, guessing, experts compare gadgets such as Resola and Wash Panel through MCDA, judging actual outcomes in addition to cost, durability, and ease of use. Robots doing the job might cut upkeep spending sharply, sliding it from 5 % to only 2% within yearly site budgets. Still missing? Smarts tracks surface wear in real time. Next, independent scrubbers can be built for specific spots, sipping less water while standing firm against changing weather conditions for decades.