Do Solar Batteries Make A Noise?

Last Updated on May 29, 2025

When investing in a solar battery system, one of the most common concerns among UK homeowners and landlords is whether solar batteries make a noise. It’s a fair question especially if the battery will be installed indoors or near living spaces. 

With the increasing adoption of solar energy across residential and commercial properties in the UK, understanding how quiet (or not) these systems are can help you make an informed decision. 

In this guide, we’ll explore exactly how much noise—if any—solar batteries make, what components contribute to sound levels, and how you can ensure a virtually silent setup in your home or building.

Are Solar Batteries Noisy?

The short answer is no, solar batteries themselves are generally very quiet, especially when compared to other household systems like boilers or air conditioning units.

That said, some homeowners in the UK notice a faint hum or soft clicking, particularly if their battery is paired with an inverter or charging equipment that does emit minor operational sounds. 

What Causes Noise in a Solar Battery Setup?

Let’s break down where sound may come from:

• Battery Management Systems (BMS): These monitor and regulate your battery’s charge and discharge. They are silent in most systems.
  
• Inverters: These convert DC electricity into usable AC electricity. Some inverters have cooling fans that may generate a light buzzing or humming.
  
• Charging cycles: A mild click or tick can occur when switching between charging and discharging modes.

Most of these sounds are minimal and barely noticeable in a standard domestic setting. For perspective, the average noise output from an inverter system might be around 25–30 decibels, quieter than a whisper and much less than a standard fridge.

Why Noise Levels Matter for UK Properties

For UK homeowners and landlords particularly in terraced houses, flats, or retrofitted commercial buildings keeping energy systems quiet is essential. Whether you’re installing a solar battery indoors in a utility room or choosing to install it outside, you’ll be pleased to know most modern solar batteries operate silently or nearly so.

Are Outdoor Installations Suitable for Solar Battery Systems?

Yes, solar batteries can be installed outside. Many batteries can be housed in weatherproof outdoor enclosures, which not only reduce any residual noise but also help with space-saving indoors.

Quietest Solar Battery Brands in the UK Market

When selecting a battery, look for quality brands known for reliability and quiet operation, such as:

• Tesla Powerwall
  
• LG Chem RESU
  
• GivEnergy
  
• Sonnen

These brands incorporate advanced inverter technology and sound-dampening design to keep noise levels extremely low, ideal for domestic installations.

Is That Noise a Sign of a Problem?

If you’re hearing loud buzzing, crackling, or whirring, this may be a sign that something’s not right. Most solar batteries are designed to operate quietly, so abnormal sounds might indicate:

• A faulty cooling fan
  
• Poor installation
  
• A malfunctioning inverter
  
• Loose wiring or poorly secured units

Always consult a certified solar battery installer if you hear anything unexpected. Regular servicing and professional setup ensure safe and silent performance.

Are Solar Batteries Noisier Than Other Renewable Solutions?

Compared to alternatives like diesel backup generators, solar batteries are significantly quieter. Even when paired with solar power diverters, which redirect excess energy to heat water tanks, the entire system remains practically inaudible. 

Choosing the Right Solar Battery for a Quiet System

Choosing the right battery isn’t just about silence—it’s also about:

• Size and capacity
• Cost-effectiveness
• Long-term lifespan
• Backup functionality

Still wondering if it’s worth it? Read our guide on Are solar batteries worth it?

Is It Possible to Use Solar Panels Without Adding a Battery?

While some users opt for solar panels alone, batteries offer key benefits, quiet backup power, nighttime energy use, and energy independence. For more insight, read our guide on whether you can run solar panels without batteries?

Get a Silent, Energy-Efficient System — Request a Free Solar Battery Quote Today!

Looking to install a quiet and efficient solar battery system tailored for your home or property? At Eco Happy, we specialise in designing custom solar storage solutions for UK homeowners, landlords, and commercial buildings.

• Get expert advice based on your energy usage
  
• Choose from the quietest, most reliable solar battery systems
  
• Learn exactly how many storage batteries are needed to power your house
  
• Maximise performance with minimal disruption

Don’t wait — Request your free solar battery quote now and enjoy silent savings for years to come.