Low/High frequency

Low frequency inverters are based off of the traditional copper coil/iron core transformer technology that is very resilient to handling current surge of large inductive loads (motors). High frequency variety substitute with transistors and MOSFETS are more efficient, but more fragile by contrast. 

Inverter capacity

The ability to invert enough Direct Current (DC) to satisfy the Alternating Current (AC) load demand. The more power needed on the consumption side, the Bigger the inverter capacity needs to be. Furthermore, the “source” of the DC also plays a factor. It would not be cool to ask a 12 volt inverter to work on a 48 volt system.

PV input capacity

Another factor to consider is the inverter’s capacity to handle photovoltaic input. The inverter with a charge controller will manage the power from the PV panels, the battery, and/or the utility. If the PV input capacity is limited, this could potentially become a bottleneck in the design of the entire system. 

LV6548 6.5KW – 120v Solar inverter 8kW -2 x 4kW 250V MPPT UL1741 compliant – built in Wifi

Watts247

Ian at this site has a huge variety of off-grid and hybrid inverters from MPP Solar of Taiwan. This appears to be the only “official” vendor of this brand of very sought after hybrid inverters from which all others copy. This unit is so flipping popular that it’s always on backorder. If you can get a hold of it, jump on the opportunity.

Into the Rabbit hole

Sun Gold Power

Per reviewers on the YouTube, this Chinese company appears to make the exact same duplicate of many popular MPP Solar inverters. If things get tight and you need an inverter quickly, their offering looks competitive.

 

Onward

6500W 48V SOLAR CHARGE INVERTER PARALLEL + WIFI MONITOR UL1741 LISTED

Growatt 5kW Stackable Off-Grid Inverter | SPF 5000 ES-US

Signature Solar

Purportedly the official Growatt distributor in the States. They sell a lot of Solar toys out of Texas. Admittedly, I’ve splurged a tad here because I have low impulse control. 

 

Go see

Amazon

Then there’s the ubiquitous, omniscient Amazon. The variety of Chinese brand inverters offered is unparalleled. But I like to support small businesses whenever practical, hence the low-key promotion of this affiliate partner. 

 

Onward

6500W 48V SOLAR CHARGE INVERTER PARALLEL + WIFI MONITOR UL1741 LISTED

 

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