The study looked at how well a balcony integrated solar panel system works. These systems can make electricity without using fuel or harming the environment. They are quiet and don't use up many resources. The researchers found that if a 1.1kW system is used on balconies, it can help cool down the panels in the summer. This makes the system work better. The study showed that a balcony solar panel system on a cold facade can be about 74.7% efficient on average each year.