About Us
Ferroamp is a Swedish greentech company focused on energy and power optimization of properties. The Ferroamp system maximizes the benefits of solar panels, electric vehicle charging, and battery storage by connecting them to a DC grid, allowing property owners to control and manage their electricity usage and take control of their grid connection.
Society must transition to a sustainable energy supply. Electrification is the key, and with Ferroamp, every property becomes a resource in the grid, contributing to the flexibility needed as the share of renewable electricity production increases.

Phase balancing is the foundation
It all started with Björn Jernström’s development of dynamic phase balancing to reduce the main fuse in his newly purchased villa in Järfälla. Step by step, innovation by innovation, it has evolved into a smart microgrid that is now present in thousands of homes and properties in Sweden.

Hardware and software
The Ferroamp system provides the property with a flexible infrastructure for daily electrical services a household or business needs. Ferroamp continuously develops the software and updates sold systems with new functionality over the internet as the electricity market and the world change.

Swedish innovation at the forefront
Phase balancing, DC grid, solar string optimizers, and PowerShare. Since its start in 2010, award-winning innovations have been pouring out of the headquarters in Spånga, just outside Stockholm. A world-leading team of innovators and developers now accompanies Björn Jernström.

Fast-growing
In 2021, Ferroamp was named by the Financial Times as one of the 50 fastest-growing companies in Europe, and the growth journey has only just begun. The need for renewable energy and more efficient electricity usage is increasing worldwide, and Ferroamp is ready to deliver the solutions.
History
2010
2012-2013
2014-2015
2016-2017
2018-2019
2019
2020
2021
2022
2010
Ferroamp is founded
Björn Jernström founded Ferroamp, based on the now patented innovation that improves the use of a three-phase supply, ACE – Adaptive Current Equalization.
2012-2013
Pilot installations
The first pilot installations for phase balancing are carried out, and the first patents are secured.
2014-2015
Phase balancing and Energy measurement
The first commercial customer order for managing phase balancing and energy measurement is delivered.
2016-2017
Solar power and energy storage
The first commercial customer order integrating solar power and energy storage is delivered.
2018-2019
PowerShare
The first installation of PowerShare, connecting multiple Ferroamp systems, is carried out.
2019
Stock exchange listing
Ferroamp is introduced on Nasdaq First North Growth Market.
2020
Industrialization
Work on industrializing production begins. Manufacturing is outsourced to subcontractors.
2021
Integration with electric vehicle charging
Electric vehicle charging can be integrated and controlled in the Ferroamp system.
2022
Volume production
Key agreements are signed with suppliers and resellers to meet the sharply rising demand for the company’s products.
Ferroamp is a leader in the development of electrification within and between buildings. The many innovations that make up the Ferroamp system have been recognized and awarded in many contexts, both in Sweden and internationally.

FT 1000 Europe’s Fastest Growing Companies 2021
Intersolar Award 2020

Global Cleantech 100 one to watch 2019

Global Cleantech 100 one to watch 2018
PV Magazine Array Changing Technology Award 2018

The Smarter E Award Intersolar 2018

Intelligent Energy Management Challenge 2016

EES Award Winner 2016

Global Cleantech 100 one to watch 2016

Skanska Deep Green Challenge 2015