How do seasons affect solar energy production?

Solar energy production from PV panels can be impacted by the weather and position of the Earth. Depending on various conditions, the output can be either high or low for a particular day.

Unlike coal or natural gas power plants, which basically function the same way no matter the location, both solar and wind systems are inherently dependent on their location and the time of year. Renewable energy system designers plan for these changes, utilizing weather data, insolation maps, anemometers, and modeling software to ensure the system is reliable and efficient all year round. Often this means designing a system based on the historically least sunny and windy day of the year.

Conversely, site-specific considerations are necessary since seasons impact solar energy production. Engineers have designed clean energy technology for year-round efficiency using past and predictive data trends, maps, anemometers and complex computer systems.

solar energy production

The physical location of the solar panels is a significant factor. Depending on the time of the year, the sun’s position and shadow change. Therefore, you must choose the right spot for solar panels so they can take advantage of the peak hours of sunlight in every season.

The weather also plays an important role in output. Stormy weather and cloud cover can limit how much sunlight actually reaches the solar panels. While they do continue to produce energy, the output is not as much.

Different events demonstrates that weather affects all energy sources, regardless of whether or not they are renewables. Wind turbines shut down without adequate wind speeds, but conventional power sources also have difficulty withstanding harsh conditions.

Climate change shows no signs of slowing down — and neither is energy demand. That’s why optimizing the current energy sector to integrate renewables is crucial for a more reliable system.

Solar energy production is possible during winter

A common myth about solar panels is that they don’t work in the winter — but nothing could be further from the truth. They actually work more efficiently when it’s cold.

solar energy production

Solar cells are semiconductors, meaning colder temperatures enhance their effectiveness and increase energy production — much like any other electronic device. That’s not to say that the changing seasons don’t affect them.

Solar panels generate energy from photovoltaic light rather than heat, so they are best utilized in regions with plenty of sunlight. Since the days tend to be much shorter in the winter, there’s less photovoltaic light for energy.

Our 20 years experience in development and construction of photovoltaic solar systems allows us to assess opportunities and make decisions quickly, providing cost effective solutions for all our clients. We have a portfolio of designed and engineered solar projects across Sweden, Canada, Brazil and Colombia. Discover all our projects

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