Quality and safety are non-negotiable for us because in the end exactly these factors guarantee maximum and sustainable efficiency of PV projects. To live up to this claim, we continuously put our products and those of other manufacturers through their paces in our certified test centers.
You will find key findings at a glance below.
1. Passive cooling actively burns money
Passive cooling reduces the inverter’s power output and PV component’s lifetime by up to 75%.
For more information on cooling see our website Too passive cooling.
2. Power loss at sunshine
Inexpensive inverters often lose their power output at an ambient temperature of 21°C—they can’t handle the sun.
You’ll fine more information on this subject here Power loss at sunshine.
3. Poor DC:AC ratios increase costs and decrease profitability
Our competitors advises a low DC:AC ratio of 1:1. This forces system operators to use up to 40% more inverters per PV system.
For more details on DC:AC ratios see Poor DC:AC ratio.
4. Electromagnetic interferences could get you into severe legal trouble
Some inexpensive inverters produce electromagnetic interferences, which disturb, among others, the radio frequences of air traffic control or railroad communications—PV system operators will have to deal with legal consequences.
Visit Illegal EMI built in for more information.
5. Server out of control
Chinese laws make it mandatory for Chinese companies to operate cloud services in China—this might easily cause a safety problem.
The great firewall and how it works
For more information on server reliability see Server out of control.
Our Test results reveal that using a relatively inexpensive inverter might come at a price PV system operators probably would not want to pay. SMA demands highest quality standards of its products. That is why our experts at the SMA test center simulate the entire life of an inverter in fast motion and put our products through their paces in certified laboratories.
Find a short video of our test center here:
Here, you can find a summary of all test results at one page and for download
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