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I have an existing ground mounted, south facing solar array designed for four panels (I used a flat roof mount because it was easier and cheaper, bolted to concrete). I want to make another array and put it directly behind it. Is there a general rule of thumb like how far away it should be...

I have a cheap Chinese inverter that is off-grid and designed to take solar DC and either converts that to AC or charge a 48 v DC battery (or both at the same time). I'm considering not installing solar panels to connect to this, but i have spare 48 v batteries i want to charge somehow. I could...

I have an east facing roof that I want to put solar panels on. The roof is about 2° north facing. I’d like to add a slight tilt to a roof mounted system to at least zero out the north facing, but possibly add a few more degrees south facing. I’ll be using standard aluminum root mounts for clay...

I have an existing solar array of 6 panels wired in series. I am going to be changing that to two arrays of 3 panels connected in parallel. Do I need to change the way it is grounded? Should I for example have the ground wire follow the neutral instead as illustrated in the picture?

what’s the difference between max MPPT voltage range and max DC input voltage? My inverter max dc input is 600V and the max range goes up to 550V. I’m wanting to use 14 panels that have a 45.16 open circuit voltage using Nominal Operation Cell Temperature (49.37 open circuit voltage using...

Is it generally easy to swap a hybrid inverter? I have a SAJ (they suck!) inverter and I was considering replacing it with something else, like DEYE or Goodwe. Everything on the SAJ is already installed. I figure I'd have to change out the smart meter but that might be about it since everything...

I have a string of four solar panels in series that gets shading in the afternoon. I want to add four more panels to the string in series. The existing shaded string is closest to the inverter. The four new panels will be ground mounted, and will get no shading (it will be directly connected to...

I am looking to get a device that can take 48 volts from a battery and convert it to 230 VAC. However, I am also wanting the device to be able to take 230 VAC and charge the 48 volt battery, sometimes performing both functions. What exactly would this be if it exists? No solar is involved. If...

I live in Western Europe and I see solar water heaters all over the place. I don’t understand in any case why someone in their right mind would want one. Why wouldn’t one put in regular solar panels and use that energy to heat water, or whatever else one wants, instead of putting water lines...

I have a 4 kw solar system running a SAJ solar inverter with two, 100 ah 48 v lifepo4 batteries. Sparing you all my complaints about SAJ inverters (they are terrible), the inverter low voltage shut off doesn’t work. I have it set to 42volts currently. When i gets close to 42 volts the inverter...