How Do I Remove Snow From Solar Panels on My Roof?

snow on solar panels

Australia is known for its diverse climate, and in some regions, snowfall can occur during the winter months, affecting the efficiency of solar panels installed on rooftops. Snow accumulation on solar panels can significantly reduce their energy output, or eliminate it completely.

Worry not, Aussies in snowy regions! This guide will equip you with the knowledge and tools to safely and effectively remove snow from your solar panels, keeping your power flowing all season long.

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Should you even remove snow?

Before we dive into the how-to, let’s address the “why.” In most cases, light snowfall won’t significantly impact your solar panel’s energy production. The snow will naturally melt and slide off as the sun rises and temperatures climb. However, heavy snowfall or icy conditions can significantly reduce efficiency.

Here’s a rule of thumb:

  • A light dusting of snow: Leave it be, it will melt naturally.
  • Significant snow accumulation: Consider removal, especially if it persists for several days.
  • Icy conditions: Removal is crucial to prevent ice dams and potential damage to your roof and panels.

Why remove snow from solar panels?

Snow accumulation on solar panels acts like an insulating blanket, blocking sunlight from reaching the cells and hindering their electricity generation. This can lead to:

  • Reduced energy production: Studies show snow cover can decrease energy output by 25% to 70%.
  • Increased system stress: The weight of snow can put undue pressure on the panels and mounting system.
  • Potential damage: Heavy or icy snow can crack or break panels, especially if removal methods are improper.

Safety first: When NOT to DIY

Before venturing onto your roof, remember safety is paramount. Here are situations where it’s best to call in the professionals:

  • Steep or slippery roofs: Working on an inclined or icy surface is extremely dangerous.
  • Heavy snowfall or thick ice: Removing large amounts of snow can be physically demanding and poses a risk of falling debris.
  • High roofs: Reaching panels on a multi-story building is best left to trained professionals.
  • Health concerns: If you have any medical conditions that limit your ability to climb or exert yourself, seek professional help.

Before venturing onto your roof, remember – safety is paramount. Snowy roofs are slippery and treacherous. Never climb onto your roof unless you have the proper safety equipment and experience. Consider hiring a professional if you’re uncomfortable or lack the necessary skills.

Read more about solar panel cleaning and maintenance

how to remove snow from solar panels

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DIY snow removal methods for safe roofs

If your roof is relatively flat, easily accessible, and covered with light snow, you can consider DIY snow removal. Here are some safe and effective methods:

  • Soft-bristled broom: Use a long-handled broom with soft bristles to gently brush off loose snow. Avoid metal or stiff brushes that can scratch the panels.
  • Snow rake: A long-handled roof rake with a wide, rounded head is ideal for pulling down larger amounts of snow. Work from the bottom rows upwards to avoid cascading snow onto cleared panels.
  • Pool noodle brush: Attach a pool noodle to a broom handle for a DIY tool with added padding and reach.

Invest in long-term solutions

For maximum convenience and safety, consider these long-term snow removal solutions:

  • Heating elements: Install heating elements beneath the panels to melt snow automatically. This is a costlier option but offers hands-free snow removal and can even pre-warm the panels for improved efficiency.
  • Self-cleaning coatings: Apply a special coating to the panels that repel snow and ice, reducing the need for manual removal.

Additional tips for Australian snowfall

  • Choose the right time: Remove snow during the warmest part of the day to facilitate melting and avoid working on icy surfaces.
  • Clear gutters: Ensure gutters are free of debris to prevent ice dams and potential water damage.
  • Monitor your system: Monitor your solar production during snowfall and check for any significant drops that might indicate heavy snow cover.
  • Install your panels at an optimal tilt angle: To maximise sun exposure and encourage natural snow melt.  A steeper angle can help shed snow naturally, reducing the need for manual removal.
  • Consider using self-cleaning coatings on your panels to repel dust and snow.
solar panels and snow on roof

Remember, safety comes first

Following these tips and choosing the appropriate snow removal method, you can keep your solar panels generating clean energy even during the occasional Australian snowfall. Always refer to the manufacturer’s guidelines for specific cleaning instructions to avoid damaging the panels or voiding warranties.

Remember, safety comes first, so don’t hesitate to call in professionals if the situation warrants it. With proper care and maintenance, your solar panels can continue to shine throughout the year, even with a touch of winter magic.

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