Saving on quality might become expensive

SMA is a global leader in PV system technology – thanks to our technical expertise and strength in innovation, more than 35 years of experience, and our mission to create and shape the energy supply of the future.
Quality and safety are non-negotiable for us because in the end, exactly these factors guarantee maximum and sustainable efficiency of our customer’s projects. To live up to this claim, we continuously put our products and, those of other manufacturers, through their paces in our certified test center.
Check our key findings at a glance below.



clear sky
Paying more attention to the facts
The results of our tests revealed that using the relatively inexpensive inverter for your PV systems might come at a price you probably would not want to pay. This includes power output loss at common ambient temperatures, higher maintenance costs, reduced component lifetime due to poor temperature management, IT security issues, and even potential legal trouble.


Too passive cooling

Too passive cooling

A passive cooling strategy reduces component lifetime by 75%.
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Poor DC:AC ratio

Poor DC:AC ratio

A 1:1 DC:AC ratio increases your costs.
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Illegal EMI

Illegal EMI built in

Some inexpensive inverters produce electromagnetic interferences that are just plain illegal.
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Power Loss

Power loss at sunshine

Normal ambient temperatures lead to less power output with cheap inverters.
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Server Reliability

Server out of control

Some cloud management systems come with a major security risk.
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The world in a lab – top performers at the SMA test center
More is expected of them than of others: SMA solar inverters are always one technological step ahead of other devices on the market – and must work perfectly for more than 20 years. No matter in which country, in which climate, or to which power network they are connected.

That is why our experts at the SMA test center simulate the entire life of an inverter in fast motion. Their tools: high technology and extraordinary methods. They do exactly what a normal customer never would: putting inverters in the oven. Freezing them. Strapping them into a jolting machine.  SMA inverters are used in over 100 countries – from Death Valley to the South Pole. Nearly every operating site has different environmental and climatic conditions. Additionally, the world’s widely varying power grids and grid codes also have to be taken into consideration as well as the electromagnetic compatibility (EMC).

Thanks to our outstanding equipment, we are one of only a handful of manufacturers to be allowed to perform the inverter approval tests ourselves for the strict American-based Underwriters Laboratories (UL). Every one of our experts helps to continue to improve the engineering and quality of the inverters – and of the solar industry in general.

Would you like to learn more about our testing tools and methods? Our test center video gives you an equally convincing and inspiring overview.