Not all solar panels are the same. Rated power, efficiency and degradation rate are just some of the criteria that distinguish solar modules from each other. While this is true, there are various real-world factors that determine how much energy your system will produce in a year.
Tilt, orientation, latitude, and climate can significantly affect the performance of the solar system. Therefore, if you plan to offset your electricity bill with solar power, it is important to understand how these factors affect solar power.
The Tilt angle of Solar Panels and the Effect on Solar Panel Production
The tilt of the solar panel can have a significant impact on the overall performance of the system. With the sun high in the summer and low in the winter, it is ideal to adjust the pitch of the panels year-round. However, solar tracking systems are more expensive and require maintenance due to their moving parts. All fixed-tilt systems have an optimum seasonal angle that allows them to get the most out of it, and while a few degrees of angle difference per year does not significantly change efficiency, the difference over the life of the system is much greater. can grow to
Can Latitude Affect Solar Panel Production?
Latitude also has a significant impact on the production of photovoltaic systems. Systems located at high latitudes have lower annual production levels due to the tilt of the earth as it rotates on its axis More near to equator will get more sun raise to get more energy or electricity produce by solar. Homeowners converting to solar energy in the Northeastern United States will need larger systems to offset their bills than those in the Southwest. Unless you’re ready to move, there’s nothing you can do to improve your system’s latitude performance other than to expect a corresponding reduction in yield and size.
Solar Panel Placement on the roof and the Effect on Energy Production
Where the modules are placed on the roof can also have a big impact on production. The best direction to place the module is south, second best west, third best east. A north-facing roof can provide enough production in some cases to make it worth installing the panels, but in most cases a north-facing azimuth is not recommended. Although you cannot control the amount of roof space available in each azimuth, you can strategically use the available roof space to optimize system production.
How Does Climate Affect Solar Panel Production?
Climate can also have a significant impact on system performance. For example, there is a common misconception that panels generate less power in cold environments. In fact, it’s the other way around. Heat is the enemy of efficiency, and a cold environment can prevent your solar system from overheating and becoming less efficient. Additionally, snow reflects and concentrates sunlight, improving overall radiation. So, as long as you keep the snow from burying the modules, your system will benefit greatly from a cold environment. When designing a solar system to meet your energy needs, understanding how the environment affects the system from season to season is paramount.
To get the most savings from your system, it’s important to know the factors that affect solar panel production. If you have any further questions about manufacturing solar panels, or would like to speak with one of her trusted Solar Trainers, please call (209) 499-8564.