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Do I need optimizers or microinverters for my PV system? Solar Edge and Enphase, the two most prominent companies in this field, say “yes” and sell many of these little devices. They also explain why they are absolutely needed. But is this true, or are these optimizers only needed to fill the pockets of the manufacturers? Let’s do some tests, compare it with my Huawei Sun2000 string inverter, and learn about modern solar panels.

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Do I need optimizers or microinverters for my PV system? Solar Edge and Enphase, the two most prominent companies in this field, say “yes” and sell many of these little devices. They also explain why they are absolutely needed. But is this true, or are these optimizers only needed to fill the pockets of the manufacturers.? Let’s do some tests, compare it with my Huawei Sun2000 string inverter, and learn about modern solar panels. My second channel: https://www.youtube.com/HB9BLAWireless Links: DIY PV plant playlist: https://youtube.com/playlist?list=PL3XBzmAj53RmwSzQ3oOhxbZJ6INWIPdgq LTspice Tutorial: https://youtube.com/playlist?list=PLT84nve2j1g_wgGcm0Bv3K4RSl2Jdjsey Photovoltaic Cells simulation: https://youtu.be/uV_z1ptufa4 LTspice Files: https://github.com/SensorsIot/Solar-Panels The links above usually are affiliate links that support the channel (no additional cost for you). Supporting Material and Blog Page: http://www.sensorsiot.org Github: https://www.github.com/sensorsiot My Patreon Page: https://www.patreon.com/AndreasSpiess Discord: https://discord.gg/JfgDSa8 If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission on your purchases to buy new stuff for the channel My Amazon.com shop: https://www.amazon.com/shop/andreasspiess For Banggood https://bit.ly/2jAQEf4 For AliExpress: http://bit.ly/2B0yTLL For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp https://www.facebook.com/profile.php?id=100013947273409 https://twitter.com/spiessa https://www.instructables.com/member/Andreas%20Spiess/ Please do not try to email me. This communication channel is reserved for my primary job As an Amazon Associate, I earn from qualifying purchases #no#midroll#ads

Comments

Erwin Kooi

Thank you for experimentally validating my decision last month to go for the "shadow management" inverter (sma) and not the micro-inverter (Enphase). ☺️

AndreasSpiess

Hi Erwin, Good decision! Microinverters are good for small systems without batteries, I think. For the rest, inverters are better

Anonymous

Hi Andreas. I might have missend the whole Microinverter part. Did not see any comparison between Microinverters and 1 whole inverter. I do get the optimisers part. I do think Microinverters are handy if you have a mix of panels with different orientations.

AndreasSpiess

Hi Hans, Microinverters are optimizers plus inverters. The microinverter community also claims, that one cell blocks the whole string. This is why I compare them. Microinverters are a good solution for short strings because most inverters need a certain voltage to start. And if somebody wants panel-level monitoring or like that microinverters do not have one point of failure, they should go with them. The only thing I hate is when people expect more power because of the wrong claim.