Solar Panels In Michigan

Snow and Ice are rarely an issue for a properly installed and maintained solar panel system. Solar panels generate a good amount of heat through their operation and will usually melt any snowfall or ice accumulation. Solar panels are also almost always installed at an angle so snow and ice will generally slide right off. If your panels become entirely blocked by snow or ice, however, they will not generate power, the same as with any other debris that might cover your panels.

Modern solar panels are usually about 15% to 18% efficient. This means that 15% to 18% of the sunlight they absorb gets turned into energy. The remaining sunlight is lost as heat, warming the solar panel casing. That being said there are a number of factors that can impact the overall efficiency such as the solar panel age, materials they’re made with, and average sun exposure.

The simple answer is any time they become obstructed by too much debris or grime to work efficiently. How long that takes will depend on your location. If you live near a populated downtown, your panels will get covered in soot faster, but if you live in a rainy place, your panels may stay cleaner longer. As a general rule, it is best to clean and inspect your solar panels every 6 months, but you may find it makes sense to clean them more often and get full efficiency from your clean solar panels.

Solar panels are typically going to be able to produce between 245 watts and 400 watts per hour. This means that if you live in a place that gets 6 hours of direct sunlight each day, a 300-watt solar panel will produce 1.8 kilowatt-hours and a 400-watt solar panel will produce 2.4 kilowatt-hours. Multiplied by 365, this adds up to about 650 kWh to 875 kWh per year.

Solar Panels still produce some electricity during cloudy days from indirect and UV light, but their production is reduced to around 15-30% of what they would create in direct sunlight.

In most cases, your solar panels will get a good cleaning every time it rains. However, if you’re in an area that doesn’t get rain very often, you can use a garden hose, a large sponge, and mild dish soap to clean your solar panels. Never use harsh chemicals, pressure washers, or any abrasives that might scratch the surface of your panels. Many solar panel installation companies will also offer inexpensive panel cleaning and maintenance.