Are Your Solar Panels Ready For Winter?

Whether you’re in the market for solar installation or you’ve already invested, it’s important to understand the necessary maintenance for your panels. Luckily, solar panels don’t have any moving parts so there really isn’t much maintenance that is required. However, to gain the maximum potential and keep the highest quality of your system, you definitely should have them inspected a few times a year to ensure their efficiency. Inspections should entail removing any dirt or debris from the system as well as snow. It’s also important to review the panels to ensure no damage has occurred.

If you’re inspecting your panels yourself, always be sure to keep your safety in mind. If your panels are too high up on the roof to see very well from the ground, use caution with ladders and be sure to ask a friend to help provide support…moral and safety support!

Next Gen Electric offers solar panel maintenance services. Contact us today to schedule an appointment or to become a VIP customer with added bonuses including regular ongoing maintenance inspections. This is a better choice if you want a more thorough cleaning.

During our solar panel maintenance service, we get a lot of questions about cold weather and panel efficiency. We’ve compiled the top 3 questions here:

How Will My Solar Panels Do In Winter?

Solar panels work with light and not heat. That means that when the cold weather hits, your panels aren’t affected. In fact, they actually perform better in cooler temperatures.

Will My Solar Panels Produce Electricity When It’s Cloudy?

It may not seem like it, but even when it’s cloudy outside, there is still light. That’s all your solar panel needs. During winter, the days are drastically shorter, so that does affect how much electricity is produced vs. during the summer. However, panels trap any incoming light from all angles allowing your system to be efficient even on wintery cloudy days.

What If It Snows?

A professional installer will ensure that your solar panels are in the best position to get the maximum amount of sunlight possible. Typically, your system will be installed facing the south or southwest. Since the panels are smooth and generate a slight temperature change (warmer than snowfall), snow doesn’t stick to them like it would to your home’s shingles. It generally melts or slides away quickly and easily on its own.

What If It Snows…A LOT?

This can be common, especially for our clients in the Pacific Northwest! Blizzards can offer up some heavy now accumulation resulting in piles of snow on your roof and panels. Please consider hiring a professional when concerned about snow removal from your roof and panels. That way, you won’t have the added headache and cost of broken or damages panels. 

Be sure to give Next Gen Electric a call when it comes to your solar panel maintenance. We’ll be happy to answer questions over the phone or come out to your site for a FREE consult. We want to make sure that your system (weather we installed it or not) is successful and working properly for you. 

How To Clean Solar Panels

Solar panels are generally self-cleaning, but in particularly dry areas or where panel tilt is minimal, dust and other substances such as bird droppings can build up over time and impact on the amount electricity generated by a module. Grime and bird poop doesn’t need to cover an entire panel to have an effect.

Tips for cleaning solar panel glass:

Safety First

Follow the procedure in your manual for shutting down the system before commencing cleaning. For safety reasons, it’s also wise to clean your panels from the ground if possible. A good quality soft brush and a squeegee with a plastic blade on one side and a cloth covered sponge on the other coupled with a long extension can make for the perfect tools allowing you to stay on the ground. Use a hose with a suitable nozzle to allow the stream of water to reach the panels.  NOTE: If cleaning your panels from the ground is not possible, do not attempt to access your rooftop unless you have the appropriate safety equipment and training. If you don’t; hire a suitably qualified professional instead.

Time of Day

Clean your panels on an overcast day, early in the morning or in the evening. If the sun is beating down on the panels, any water used can quickly evaporate and dirt will become smeared.  Early morning can be a particularly good time for cleaning as dew that has settled on the panels overnight will likely have softened grime; meaning you’ll need to use less water and less energy to clean your solar panels.  If the panels are dry, before tackling the modules with water, brush off any loose materials first – this will make cleaning easier and faster.

Materials

Don’t use metal objects or harsh abrasive products for removing caked on materials – scratching the glass on a solar panel can affect its performance as scratches will cast shadows. Avoid using detergents if possible as these may streak the glass of the panel. Use of abrasive powders also risks scratching the panels.  Given the nature of good quality solar panel glass, clean water and a little scrubbing with a coarse cloth covered sponge or soft brush should remove the most stubborn grime.  Plastic scourers may also be used.  If your mains-supplied water is hard (mineral-rich) and rainwater is available; use that as a final rinse; then squeegee dry. If hard water is all you have, just be sure to squeegee well as mineral-laden water can form deposits on glass as it dries.

Dealing with Oily Stains

Oily stains can occur in some installation scenarios, such as if you live near an airport and are under a flight path or if you live adjacent to and downwind of a major roadway frequented by trucks. If oily stains start appearing on your panels; isopropyl alcohol can be used as a spot-cleaning substance..

The final word on solar panel cleaning:

The old saying “if it ain’t broke, don’t fix it” applies – in most residential installation scenarios, solar panel cleaning just isn’t worth the bother – or the potential danger if accessing your rooftop. Unless dirt is clearly visible or performance is noticeably impacted; simply let nature do the job for you.