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Solar Battery Storage

Sonnen Batterie 

Mirasol Fafco Solar

Is Proud to Introduce
Our Newest System!


 Solar Power... 
After the Sun Goes Down!


Add some “Free Sunshine” to your night!

"Backup Power and Off The Grid with Sonnen Batterie"

"Sonnen’s Energy Management System"

"Reducing Peak Load Demand Charges with Sonnen Batteries"

“Just Imagine…

Now you have the chance
to take your energy future
into your own hands!”

Battery Chemistry Performance Comparison



"Energy Independence with sonnenBatterie"
Customer testimonial by Joseph F.

Use solar energy throughout

the day and at night

sonnenBatterie eco lets you enjoy the benefits of solar energy production 24-hours a day! Our integrated smart electronics manage your energy use throughout the day, detecting when there's excess power and storing it for use at night.

Never Worry About the Lights

Going Out

sonnenBatterie eco is specifically designed to  provide you and your family peace of mind in the event of a power outage. Our unique power detection system will sense outages in real-time and automatically switch over to battery power!


Harvest Cheaper Energy

to Use Later

sonnenBatterie eco allows you to engage in  “rate arbitrage” – storing energy when it is cheap and running your home off the battery when rates go up. The sonnenBatterie eco is the right choice  for every home and every budget.


Mirasol Fafco Solar

Solar Energy At Its Best!


“The future of clean energy is here!”


Sonnen Batterie- Eco

“The World’s Most Installed Solar Storage Batteries"
are now being installed all over the Suncoast!


Mirasol Fafco Solar

Is Now...


The New Authorized Gold Dealer for
Sonnen Batteries– Eco


Solar Energy At Its Best!


sonnenBatterie eco - 

declare independence for your home

The sonnenBatterie eco is an energy storage solution that utilizes intelligent energy management software. It is easily adaptable to your individual needs. The system is available in a variety of storage capacities and configurations, allowing for extensibility and expansion. sonnenBatterie eco allows you to save money every single day by harvesting energy from your solar PV system or the grid when it is cheapest, and using the stored energy from the battery to power your home when rates are more expensive.


Engineered in Germany –

Made in the U.S.A.

Engineered in the energy village Wildpoldsried, the sonnenBatterie is the world's most installed lithium based Solar Battery Storage System  (with over 100,000 systems installed on  5 continents).

Many thousands of households are using the Sonnen Batterie– Eco, today to safely store their self-produced energy.

As a product 'Made in the U.S.A.',  the Sonnen Batterie– Eco fulfills the highest               demands on safety and quality thus protecting your investment for the long term.


Mirasol Fafco Solar

Solar Energy At Its Best!

Call Us Today!



Cell Chemistry

The battery – durable,

robust and safe

The sonnenBatterie residential and commercial storage systems only use lithium-iron phosphate (LiFePO4) battery technology, one of the most reliable, safe and long-lasting lithium battery technologies currently available. LiFePO4 is one of the most popular technologies for stationary storage systems due to its uniquely high chemical stability and resulting extremely high application reliability, durability and long life. Our battery systems are guaranteed to last for 10,000 cycles or 10 years. All sonnenBatterie components and systems are also UL Listed ensuring safety and performance for your home or business.

All in one system

All included: high-end components
perfectly tuned to your needs.

The sonnenBatterie is a complete system - ready for connection. This means that inside of every sonnenBatterie you'll find not only the extremely durable battery modules but also an inverter, an intelligent energy manager, measurement technology and the software to operate it all smoothly.  All in one handy box. In contrast to most other battery systems in the market the sonnenBatterie components are build into a single high-quality casing and perfectly attuned to each other - thereby ensuring maximum  longevity, plus the highest quality, and using only a   minimum of space.


Tech specs Sonnen Batterie– Eco

Power Unit

Continuous output:
(AC) 3,000 W – 8,000 W
Usable capacity:
4 kWh - 16 kWh (in 2 kWh steps)
Dimensions (in) W/H/D 4 - 8 kWh:
Dimensions (in) W/H/D 10 - 16 kWh:
Backup power capability



Maximum efficiency of inverter: 93 %
Ambient temperatures: 41 – 113° F
Enclosure Rating: NEMA 12
AC Specifications 240 VAC / split phase / 60 Hz


Listed and recognized



Designed for UL 9540 compliance.

Certified to UL 1741 (inverter),

UL 1973 (batteries), and FCC part 15

Class B compliant





Lifespan / Warranty*



Guaranteed lifetime of 10,000 cycles

or 10 years.

*Please observe our applicable

warranty conditions



As a young, but proven company, Sonnen Batterie company has been honored for its  innovative products and very fast growth...many times!  


The Sonnen Batterie is the world's most installed lithium based Solar Battery Storage System with over 100,000 systems installed on 5 continents. This proves that “Our Vision for the Future... Where Clean and Easily Available Energy Supply Is The Wright Way to Go!”


April 2017

Financial Times Europa Top 1000
Sonnen has been chosen among  
Europe's 1000 fastest growing” companies
by the Financial Times and statistics.
They identified tens of thousands
of companies in Europe as potential candidates
for the ranking.

February 2017

Fast Company’s Top 10 Most                 

Innovative Companies in Energy        

Fast Company recognized Sonnen as             

“The Global Leader” in intelligent energy   

storage in its  annual ranking of the world’s         

10 Most Innovative Companies in Energy              

for 2017. The ranking honors leading                     

enterprises and rising newcomers that                 

exemplify the best in nimble business and 

impactful innovation and Sonnen has been

recognized for it's leadership in                                  

energy sharing.



January 2017                                                                                                                                  

Sonnen won the Zayed Future Energy Prize,

one of the highest remunerated prizes for             

"special innovations in the energy sector” at the

opening of the World Future Energy Summit            

in Abu Dhabi. Sonnen is the first energy storage

company to receive the prize in the “Small and

Medium Enterprise” category.



January 2017

Global Cleantech 100
"Continued Excellence Award"
GmbH is the winner of the Global Cleantech 100
award for "Continued Excellence" For the third year in 
a row as a leading innovator in the Cleantech industry.



With over 14,000 satisfied customers since 1977, Mirasol FAFCO Solar has over 42 years of experience in commercial and residential solar electric PV product installations. Mirasol FAFCO Solar is now the Regional SunPower Dealer and we are committed to delivering the highest quality solar solutions.


With more than 14,000 satisfied customers since 1977, Mirasol FAFCO Solar has over 42 years of experience in commercial and residential solar pool heating installations. Mirasol FAFCO Solar is an exclusive distributor of FAFCO solar water heating products designed to save you money.


Solar hot water heaters can also significantly reduce the amount of electricity and/or natural gas that needs to be purchased from your utility or electric service provider. Solar hot water heating systems can provide owners with fixed energy costs.


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