Why solar panels are not reliable as you might think

To begin, a company that goes by the name of Fortum claims that their engineered solar panels are the best energy source that money can buy. According to them, solar panels can produce enough energy EVERYDAY to users. They also claim that the sun can provide more than enough energy for the whole world. They say that the only limitations about solar panels are to make the energy produced efficient and cost effective. The last point that they bring to the table is that their product is better than fossil fuels because of its certainty to produce electricity (Fortum, 2025).