With the cost of solar power having dropped by more than 90 percent over the last decade, more Americans than ever before have been able to access clean, affordable energy. However, during the winter months, when sunlight is less intense and days are shorter, solar panel efficiency can be negatively affected. With careful planning and strategic measures, it is possible to maximize solar panel performance even in the coldest months. In this article, we'll explore the top five strategies to optimize energy generation from solar panels during the winter season.
- Adjust the Tilt and Orientation
- Regularly Clean the Panels
- Optimize Battery Storage
- Monitor Energy Use & Efficiency
- Invest in High-Quality Panels
1. Adjust the Tilt and Orientation
Adjusting the tilt and orientation of solar panels can drastically impact their exposure to sunlight. In winter, the sun's path is lower in the sky, so tilting the panels to a steeper angle can help capture more sunlight. Additionally, ensuring that the panels face true south (in the northern hemisphere) maximizes their exposure to sunlight throughout the day.
Solar tracking systems, which adjust the position of panels to follow the sun's path throughout the day, can also enhance energy capture. While fixed-tilt systems are common, dual-axis or single-axis tracking systems can be more effective during the winter, capturing sunlight from sunrise to sunset.
2. Regularly Clean the Panels
Winter weather often brings snow, ice, and dirt, which can accumulate on solar panels and reduce their efficiency as well as stain the mounting hardware on your panels. Regularly cleaning the panels, particularly after snowfall, ensures that they can absorb as much sunlight as possible. Make sure to never use a metal rake, as this can scratch the cells on the panel. Use a soft brush or a gentle stream of water to avoid damaging the panels.
3. Optimize Battery Storage
Winter days are shorter, and the nights are longer. To ensure a continuous power supply, consider optimizing your battery storage system. Energy generated during the day can be stored in batteries and used during peak demand periods or when sunlight is limited. Batteries like RELiON’s Low-Temperature (LT) Series lithium iron phosphate batteries can safely charge at temperatures down to -20°C (-4°F) using a standard charger. The LT Series batteries can bring the battery to a safe temperature for charging without the need for additional components like a heated blanket, which ensures the greatest energy efficiency.
4. Monitor Energy Use & Efficiency
Regularly monitor the efficiency of your solar panel system. Check for any issues, malfunctions, or shading caused by nearby objects. Addressing these concerns promptly can prevent prolonged decreases in energy generation.
Also, if your solar energy output goes down during winter, one solution is to refocus on how and when you use your appliances. Simple swaps and changes can make a big difference in getting the most out of your solar energy output. For example, if you use your washing machine during the night, swap to using the appliance during daylight hours. There are other steps that can be taken, such as changing to energy efficient light bulbs, which will help you save energy no matter the time of year.
5. Invest in High-Quality Panels
Consider using high-quality solar panels with better efficiency ratings. Advanced technologies, such as monocrystalline or bifacial panels, can provide higher energy yields, especially in challenging weather conditions.
While winter may pose challenges for solar panel performance, implementing these strategies can help you make the most of your solar energy system. By optimizing the tilt and orientation and energy storage system, regularly cleaning the panels, monitoring energy use and efficiency and investing in optimal technology, you can ensure more reliable and efficient solar power generation throughout the colder months. Embracing these practices not only maximizes your energy production, but also contributes to a more sustainable planet. If you have any questions about how to maximize the performance of your solar panels through the use of a reliable and long-lasting energy storage system during winter, get in touch with an expert at RELiON today.