Snow and Solar: Everything You Should Know

Snow melting off of solar panels on a roof.

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As winter descends upon the Mid-Atlantic States, homeowners with solar panels may find themselves questioning how snow affects their solar energy production and what measures can be taken to optimize performance during the colder months. The seasonal shift introduces unique challenges for solar energy enthusiasts, prompting a closer examination of the interplay between snowfall and solar panel efficiency. In this comprehensive guide, we aim to delve into the intricate relationship between snow and solar panels, unraveling common concerns that homeowners may have as the winter landscape unfolds.

To better equip homeowners for the seasonal nuances, we will explore actionable tips tailored to enhance solar panel efficiency during winter. By addressing these concerns head-on, we aim to empower homeowners with the knowledge needed to make informed decisions about their solar energy systems. From understanding the impact of snow on panel weight to deciphering the intricacies of cold weather performance, our guide seeks to provide a holistic perspective on navigating the winter season effectively while maximizing the benefits of solar energy technology.

Understanding the Impact of Snow on Solar Panels:

One of the primary concerns for homeowners is whether the weight of heavy snow can harm solar panels. Fortunately, modern solar panels are designed to withstand significant loads. Panel manufacturers assign a pressure rating, typically 5,000 or more Pascals (Pa), ensuring panels can endure two to four feet of snow, depending on its density. In most cases, the weight is unlikely to damage the panels, alleviating concerns about potential harm.

To Remove or Not to Remove:

While the instinct may be to remove snow from solar panels to enhance energy production, industry experts advise against it. Attempting to clear your panels manually, even with a roof rake, may void their warranty and poses safety risks. The natural inclination of panels, combined with the sun’s ability to melt snow relatively quickly, often makes manual removal unnecessary.

Solar Panels and Cold Weather Performance:

Contrary to common perception, solar panels perform optimally in cold weather. The negative temperature coefficient inherent in solar systems means they experience less resistance and can generate more electricity in colder temperatures. Although winter days are shorter, the efficiency gains from colder weather can offset the reduction in sunlight exposure, ensuring continued energy production.

Professional Removal:

In extreme cases where snow accumulation is substantial, homeowners may consider hiring professionals for removal. However, it’s crucial to weigh the cost of such services against the potential energy savings. In many instances, the expense may outweigh the benefits, making it a less practical solution for routine winter maintenance.

Ground-Mounted Systems:

For homeowners with ground-mounted solar panel systems, keeping the ground in front of the panels clear can be a proactive measure. This prevents snow from accumulating and drifting back onto the panels as it falls. While this approach may be more accessible for ground-mounted systems, it is not a universally applicable solution.

The Best Approach: Letting Nature Take Its Course:

Ultimately, the consensus among experts is to adopt a passive approach and let nature take its course. The temporary loss of energy production during snowy days is considered a minor inconvenience compared to the potential risks and costs associated with attempting manual snow removal. Homeowners are encouraged to focus on safety, preserve their panel warranties, and trust in the inherent design of solar systems to handle winter conditions.


As winter settles in, homeowners with solar panels can rest assured that their systems are resilient to snow-related challenges. Understanding the pressure ratings, embracing the efficiency gains in cold weather, and avoiding unnecessary manual snow removal are key components of a successful winter solar strategy. By following these recommendations, homeowners can confidently navigate the winter months, ensuring their solar panels continue to harness the power of the sun and contribute to a sustainable energy future.

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