As solar energy panels are rising in popularity, home and business owners are more concerned regarding such installations.


Do solar energy panels make noise? The short answer to the question is no.


Generally speaking, solar energy panels don’t make any noise. Solar energy panels are designed to be noise-free, especially at night. The operation of solar energy panels is incredibly quiet, even when equipped with moving parts.


However, there might be other reasons causing solar panels to produce noise. In this article, we will talk about the possible reasons behind the noise and how to resolve the problem.

5 reasons for solar energy panels noise

In general, solar energy panels don’t emit noise. The energy panels are designed to be a safe and noise-free form of energy production.


If you’ve noticed some noise from your solar energy panels, the problem may be caused by wind, the position of inverters, or installation problems.


Wind noise

While the solar energy panels are noiseless, you may still hear noises, particularly at quiet night. There is a natural gap between the base of each panel and the roof. A whistling noise may occur when wind flows through the panel’s narrow sections.  


Inverter fans

Inverters are about the size of a briefcase and located at the side of the house. The device turns DC power into AC power. Inverters are designed to be in cool, shaded areas (unlike solar energy panels in full light and never be shaded).


The noise will appear when the fan is running. Two possible reasons are leading to this situation:

  1. Theinverter has been placed in direct sunlight. 
  2. Exceedingly high electricity demand.


Inverter humming

Inverters may make a humming noise during the day. In most cases, the humming sound won’t be high. However, when inverters make a louder noise, it may indicate that maintenance is required. Possible reasons are inverters being placed in direct sunlight or the device’s low quality.


If you hear a high whistling noise from the inverter, this is the capacitor working. On the other hand, a noise like a vacuum cleaner is usually the fan working to cool the system.


  • Loose racking

If the racking has been secured incorrectly or becomes loose over time, you may hear a rattling sound. When the wind blows, loose racking will cause panels to move around or even disconnect.


  • Loose cabling

Cabling runs between each panel and then down into the roof. If the cabling between panels is not properly clipped, solar energy panels may move or hit the roof to make noise.


Solar energy panels night sounds

Apart from a minimal humming sound from your inverter or noise from the wind, your solar energy panels should be operating silently. In this case, the noise may be due to loose cabling, loose racking, or the position of inverters. 


Ways to improve the noise in the corresponding situation


Wind noises

You can install rubber pads between the roof and the panels. The rubber pads can block wind routes, absorb other sounds, and protect the roof’s integrity. Additionally, you can ask the installer how to deal with the situation if the problem persists.


Inverter noise

If you’re sure the noise is coming from the inverter, consider moving it away from the current location. A cool and shade place is a better choice. Many homes utilize garage space and basements to place the inverters.


Loose problem

There are usually two types of loose situations: loose racking and loose cabling. When the problem is improper installation, the most appropriate way is to call the installer to fix the device. After secure the loose equipment, you can also let the installer thoroughly check your solar energy panels to avoid other noise situations.

Why choose nRuiT

nRuiT offers a one-stop solution of lithium energy storage system for your home. In our Residential Energy Storage System (Power Porter), we provide your home with maximizing self-consumption and reassuring emergency power backup.


Power Porter is a battery energy storage system that perfectly suits households. Obtain grid independence, increased self-consumption, and reduced electricity bills.


Power Porter automatically provides backup power by integrating the system with solar panels. If you are looking for a reliable supplier, we are there for you. Contact us!