
/ Perfect Welding / Solar Energy / Perfect Charging
WITH FRONIUS
ON THE SUNNY SIDE.
TODAY AND TOMORROW.

FRONIUS:
LEADING THE WAY
FOR OVER 70
YEARS
SHIFTING THE
LIMITS RIGHT
FROM THE START
A GLOBAL
FAMILY-RUN
ENTERPRISE
HEALTHY
BUSINESS –
EXCELLENT
CREDIT RATING
When Günter Fronius developed the first
battery charging system in 1945, he laid the
foundations for what the company has
represented for over 70 years: the constant
search for pioneering solutions to
the technical challenges of the times.
In developing new markets for Fronius, our
desire never changed: to be the technology
and quality leader. Today we have 28 international Fronius subsidiaries and sales partners
in more than 60 countries.
We at Fronius think in terms of sustainable
growth, not quarterly figures. We are not
motivated by share prices, but by exciting
inno-vations. This enhances our strength
and stability.
From top to bottom
/ An interview with our founder
Günter Fronius can be found at
www.fronius.com/howitbegan
/ Klaus Fronius, Managing Director
since 1980 together with his sister
Brigitte Strauss. He moved to the
Company’s Supervisory Board in 2012.
/ Elisabeth EngelbrechtsmüllerStrauss, Managing Director since 2012
The rating agency Dun & Bradstreet
(D&B) assigned a best-possible risk
indicator of 1 to Fronius for several
years now, which firmly underlines our
responsible use of resources.

MANUFACTURER CHECKLIST:
The inverter is the heart of your PV system. Your entire investment’s rate of return in the form of
generating renewable energy from solar power depends on this inverter. Your choice of inverter
should therefore never be left to chance. Ask your-self the following question:
which manufacturer promises me the best long-term energy yield from my PV system?
COMPANY CHECKLIST
?
/ How long has the company been around for?
/ How long has it been active in the field of solar technology?
/ Is the firm a listed stock corporation?
/ Is the firm in a stable ownership structure?
/ Does the company have any alternative sources of revenue?
QUALITY CHECKLIST
?
/ Does the company have a certified QM system?
/ Are the products of a high quality?
SERVICE & SUPPORT CHECKLIST
?
/ Does the company possess a service hotline?
/ Does the company provide service support in my
country?
/ Fronius was founded by Günter Fronius in 1945
/ Fronius is active in solar technology since 1992
/ Fronius is privately owned for more than 70 years
/ Fronius is a family-run company.
/ Fronius is successfully active in three industry sectors
/ Fronius has been fully certified in accordance with
ISO 9001 for over 20 years
/ Fronius stands for high-quality products „Made-in-
Austria“: our solutions have been regulary awarded
the Plus X award
/ Our technical support is available worldwide
/ Fronius offers on-site support in more than 70 countries
FUNCTIONALITY CHECKLIST
?
/ Is it possible to upgrade the inverter with new
functions?
/ Does the inverter have any open interfaces?
/ Can the inverter be serviced on-site?
WARRANTY CHECKLIST
?
/ How long does the manufacturer’s warranty last?
/ What services are included within the manufacturer’s
warranty?
/ How is a warranty claim processed?
/ Fronius inverters are fitted with plug-in card slots
/ Yes, allowing easy integration into 3rd party systems
/ Our inverters can be serviced on-site with one truck roll
/ Fronius warranty lasts up to 7 years upon registration
/ 5-year Fronius Warranty Plus covers: materials, transport,
servicing; 7-year Fronius Warranty covers: materials
/ Fronius offers a paperless and formless claim handling
procedure with a professional Fronius Support team