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Sonnen Solar Batteries Costs, Reviews and Specifications

Sonnen’s journey started in 2010 in a small town in Southern Germany and was driven by the desire to make clean and affordable energy available to anyone. Today, the company is a global leader in energy storage solutions with offices in Germany, Italy, Great Britain, the US and Australia.

Knowing that every household has unique energy needs, Sonnen developed the sonnenBatterie as a multi-stage storage system that can be adapted to meet the most diverse energy requirements. 

sonnenBatterie Solar Batteries

The sonnenBatterie is available in storage sizes ranging from 5kWh to 15kWH and designed to make your home sustainable and independent. It’s a complete system that’s ready for connection and comes with an inverter, intelligent energy manager, measurement technology and the software to operate it all smoothly. 

There are three solutions for homeowners, including the sonnenBatterie 10, the sonnenBatterie eco and the sonnenBatterie hybrid, all of which use lithium iron phosphate batteries. The more powerful sonnenBatterie pro is suitable for commercial buildings with large solar arrays. 

Sonnen says the combination of a sonnenBatterie and a PV system will allow you to cover around 75% of your yearly energy requirement with self-produced and clean energy. What’s more, the sonnenBatterie’s energy capacity can be expanded in blocks of 2.5kWh if you need to increase your home’s power storage. 

Below, you can find more information about the sonnenBatteries available for homeowners and commercial premises. 

sonnenBatterie 10

Sonnen’s newest product is the sonnenBatterie 10. It offers a modular design and can be expanded from 11kWh to 22kWh, with the possibility for expansions of up to 198kWh for small businesses and homes with higher electricity demands.  

Nominal Capacity11kWh22kWh
Usable Capacity1020
Number of Housings12
Battery Efficiency96%96%
Dimensions H – 187mmW – 89mmD – 127mmH – 187mmW – 173mmD – 127mm
Ambient Temperature Range-5°C to – 45°C-5°C – 45°C
Warranty10 Years10 Years

sonnenBatterie eco

The sonnenBatterie eco is not bound to any photovoltaic system size, making it ideal if you’re looking for the greatest possible flexibility. It can easily be connected to other power sources and is compatible with a fuel cell, a mini wind turbine or a micro co-generation unit. 

This battery uses intelligent software to manage your energy throughout the day to provide backup power and enable you to use solar power at night.  

Storage Capacity5-15kWh – expandable in steps of 2.5kWh post installation
Output2.5kW – 3.3kW
Ambient Temperature Range-5°C to – +45°C
Dimensions 5-10kWh: 137 x 67 x 23 mm5-15kWh: 186 x 67 x 23 mm
Battery Service LifeDesigned for 20 years
Warranty10 Years

sonnenBatterie hybrid

The perfect energy storage solution for new solar panel installs, the sonnenBatterie hybrid is backup capable and can integrate with any PV system on the market. It comes with an inverter to eliminate the need for an external device to convert direct current (DC) from your roof into alternating current (AC) for your home, which helps to reduce the total cost. 

Storage Capacity5-15kWh – expandable in steps of 2.5kWh post installation
Output5.5kW (up to 6.4kWp PV-output)
Ambient Temperature Range-5°C to – +45°C
Dimensions 5-10kWh: 137 x 67 x 23 mm5-15kWh: 186 x 67 x 23 mm
Battery Service LifeDesigned for 20 years
Warranty10 Years

How much does a sonnenBatterie Cost?

A typical price for a fully installed sonneBatterie storage system starts at around £6,000. The total cost of installing one at your home depends on the battery you choose, the battery size/capacity, and the complexity of installation. 

The best way to determine how much you need to fork out for a fully installed sonnenBatterie is to contact a Sonnen approved installer. We recommend you get in touch with a few reputable installers for a quote to enable you to compare prices and find the best deal available. 

Why Choose a sonnenBatterie?

The benefits of having a sonnenBatterie system installed include:

  • Easy to install
  • Long-lasting – 20-year battery life service
  • High-quality components and casing
  • A complete system with inverter, energy manager, measurement technology and software
  • Easy to increase power storage – energy capacity can be expanded in blocks of 2.5kWh
  • Safe – uses lithium iron phosphate batteries, the safest lithium battery technology available today
  • More than just a battery – it’s also an intelligent storage system that automatically adjusts the energy usage in your home
  • Compatible with the Sonnen app, which communicates with your battery system to provide you with all the information you need, even when you’re not at home
  • 10-year warranty

sonnenBatterie Reviews

Sonnen currently has an ‘Average’ rating on Trustpilot based on 1,096 reviews. Although there are some negative reviews on the website, 68% of customers gave the company an ‘Excellent’ rating, proving that most people are pleased they chose to have a sonnenBatterie installed.

Please note that the above Trustpilot score is correct at the time of writing in December 2021. 

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