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Reviewed in the United States on August 23, 2024
Its been up and running a few days now. Has a pretty aggressive fan curve, at just a fraction of the 1300w rating the fans come on (about 300 watt output to grid) but if that extends component life I'm good with that. Just something to keep in mind when deciding where you want to mount it.
airaddict
Reviewed in the United States on May 9, 2024
The documentation is very good on this inverter. Here are the details on how it performed for me.380W panel, mid morning it was producing 154 watts @ 40VDC. Utility meter read 158W, so conveniently, this grid-tie inverter should basically negate the home's usage. In reality, the meter read 34W, however, the 86% claimed efficiency for the output seems plausible, even though I was experiencing around 80%. With the low input, the efficiency doesn't scale very well, but when I put four of these panels in parallel, I expect the claimed efficiency will be pretty accurate. The inverter consumed 30W of power for this test.The construction seems decent. I had to make a couple of cables with MC-4 connectors to connect to the DC lugs (they actually supply copper ring terminals, which is nice).So, follow the instructions, plug the inverter into your home's AC outlet (check with your power company or an electrician if you're not sure about whether it's right for your home, or not), and watch power get fed back into the grid. Price seems reasonable. Time will tell on the quality.
J.T. Doofenshmirtz
Reviewed in the United States on May 4, 2024
I wanted to test this inverter out as I have never messed with a grid tie unit before. To be honest, I didn't even know they existed on this scale. I tested it with a 400 watt Goal Zero solar panel set I have and was a little disappointed. I have used that same panel before with a charge controller, LiFePO4 battery and "normal" inverter. In less than ideal sun conditions, and VERY similar to what I was receiving today, my standard off-grid set up was producing over 200 watts. Today this unit was only producing 28 watts! :P It does shut itself down with power failure as I would expect. We need to protect our lineman after all. So I do believe it to be a safe unit. But a 400 watt panel should give much more than 28 watts. I get almost 10 times that off-grid....
Antony C. Bakke
Reviewed in the United States on May 16, 2024
The unit was easy to install and is quiet, except for some fan noise. It works well and is a good value.
matt
Reviewed in the United States on September 16, 2021
worked for seven months then quit. through amazon contacted marsrock, they said to send pictures of it installed. they notice that the blue led was not lite. strangely they ask me to open the unit and to see what is bad. i did, a fuse and a transistor which they sent to me to replace. unit works now. i then sent them a invoice for warranty work as this unit was still under warranty and they had me fix the unit. had not heard from yet. now what?
Quality Control Manager
Reviewed in the United States on September 14, 2019
Good support/service from Marsrock. They went the extra mile to ensure customer satisfaction
BrianS
Reviewed in the United States on October 5, 2019
Buyers should know that at 25v you get about 200 watt output and that increases mostly linearly to >1000 watt when at 45v input.
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