Solar panels need to be in a location that receives direct sunlight to work. While they can still generate some power in cloudy or overcast conditions, their efficiency is greatly reduced.

Here are some factors that influence the effectiveness of solar panels:

* Latitude: Locations closer to the equator receive more direct sunlight and have longer days, resulting in better solar panel performance.

* Weather: Sunny, clear days are ideal for solar power generation. Clouds, fog, and rain significantly reduce efficiency.

* Angle of Installation: Solar panels need to be tilted at the optimal angle to maximize sunlight absorption, which varies depending on the location and time of year.

* Shading: Any obstruction, such as trees or buildings, that casts shade on the panels will reduce their output.

Therefore, solar panels need to be installed in a location that receives adequate sunlight throughout the day. This can be on a rooftop, in a field, or even on a boat!