luv your DIY style vidoes, don't worry about putting too much detail into your videos there is always a KC jr out there like me wanting to take it all in like a sponge love that you took these beauties apart, I am going to go at these from a different angle and pull apart a 1000 watt 12 volt inverter and a 1000 watt 24 volt inverter and see how them guts differ, please keep these types of simple grid tie inverter videos coming, it's been 4 or 5 months later now so what is your generation like, last you reported it's slightly above 50% which is where I was with Windy Nation crap solar panels, now I am trying Rich Solar, but again just the 100 watt ones
Input voltage is different. A couple of zener are different.. I measured slghtly higher output. They are different. Now they are $30 different not worth it. I've modified several of mine with higher rated mosfets for better output. Inexpensive.
I think the difference is how much PV panel watts it can handle. Maybe 1000W inverter can take 1000W input and 1300W inverter can handle 1300W. I have 1200W PV on a 1300W inverter and I do not get much more out of it than you do. Not sure if it is worth all the expense yet.
Guessing the difference between max output comes from jisso conditions of cooling and also ohmic contact around thin leads of Power transistors etc., although by all the same specs of parts while improving controlling procedures for circuits based on non-linear devices.
I have the exact same 1000 watt, I'm getting ready to switch from 12v to 24v, The original description states "for 12v use" the current item description states multiple voltage...I'm guessing it should be fine as long as I remain below the 30vdc printed on the unit... Any thoughts would be greatly appreciated.. Thanks for your time and attention
I tried I think exactly what you are saying with my 1000 watt 12 volt inverter I thought I could use it as a 24 volt system but as soon as I connected two of my 100 watt 12 volt solar panels in series the voltage must have exceeded it's 10.5-32 VDC and it would not work, I think that makes sense as the max panel voltage is around 18 volts each so two in parallel bump it to 36 volts and that exceeds this "12 volt" inverters range, hope this helps
@@dskentfield yes my 1300w 24v gave me more power then the 12v 1000w. You should look into the new growatt inverters, they're priced right and more efficient. I say better to get something good the first time!
The difference looks like the fuse. One is grey the other black. Below the yellow inductors in the middle. I blew the fuse on my 1000, so I suspect that, or by 1400 they mean "SOLAR IN WATTS" vs. Output, as these are something like 80% efficient only.
I think there is something that is different between the two that limits the output. I have seen videos with the 1000 watt one hooked up to batteries, and it maxed out at 990 watts. My 2 1300 watt inverters cycle with the AC at about 700w in full sun, and they run hot. I have heard they don't last long maxed out.
maybe the difference is in the firmware that enables more output power to one vs the other . Or the 1300 is another chinese over speced marketing scam. The way to test it is put some batteries in the inputs terminals and measure power on the AC side. I'd like to see the results.
Damn I expected the same. Just ordered the 1300w Few bucks more so I'm not upset either. Was hoping for bigger capacitors or better cooling. But like Tes Tos said its to be expected when it comes to China. Same manufacturer making the same 10 different labeled devices. Probly get a better price on Alibaba for these if you bought in bulk.
I wouldn't expect to see a difference in performance until you saturate the input power of the 1000W unit. Provide a greater than 1300W/0.8_efficiency = 1625W power source (solar or battery) to each unit. And the load side needs to be more then the GTIs can deliver (greater than 1300W) Only then can you determine the maximum output of each unit.
maybe if they were liquid cooled. The weak link IMHO is the heat sinking, and only one fan (sleeve bearing) exhausting, no intake or airflow is direct over the heatsink where it matters.
...maybe the IC with the green sticker PASSED could be the bios & like @awesomedee5421 could be different firmware? Glad it was only $6 more; scammers!
luv your DIY style vidoes, don't worry about putting too much detail into your videos there is always a KC jr out there like me wanting to take it all in like a sponge love that you took these beauties apart, I am going to go at these from a different angle and pull apart a 1000 watt 12 volt inverter and a 1000 watt 24 volt inverter and see how them guts differ, please keep these types of simple grid tie inverter videos coming, it's been 4 or 5 months later now so what is your generation like, last you reported it's slightly above 50% which is where I was with Windy Nation crap solar panels, now I am trying Rich Solar, but again just the 100 watt ones
The difference is the programming on the pic microcontroller.
Input voltage is different. A couple of zener are different.. I measured slghtly higher output. They are different. Now they are $30 different not worth it. I've modified several of mine with higher rated mosfets for better output. Inexpensive.
What mosfets did you used friend?
I think the difference is how much PV panel watts it can handle.
Maybe 1000W inverter can take 1000W input and 1300W inverter can handle 1300W.
I have 1200W PV on a 1300W inverter and I do not get much more out of it than you do.
Not sure if it is worth all the expense yet.
Man, this is the exact same 1300w model I had just decided to buy.
Do you have any further info on it now after a year plus?
Not really. Both models perform equally well, but I only run them at about 600w to prolong the life. Both will get equally hot.
Keep it as cool as you can and the watt output will probably go up.
Thanks.
Thanks good to know l would put a small fan blowing on it. I use timer on mine plug the fan
Guessing the difference between max output comes from jisso conditions of cooling and also ohmic contact around thin leads of Power transistors etc., although by all the same specs of parts while improving controlling procedures for circuits based on non-linear devices.
Great job on the the video keep them coming. Have fun stay safe.
I have the exact same 1000 watt, I'm getting ready to switch from 12v to 24v, The original description states "for 12v use" the current item description states multiple voltage...I'm guessing it should be fine as long as I remain below the 30vdc printed on the unit...
Any thoughts would be greatly appreciated..
Thanks for your time and attention
I would be careful. Open circuit voltage Voc for 24v panels can be as high as 40v, and normal operating voltage should be 28 - 32 volt for 24v panels.
@@kc79ta I appreciate your taking the time to respond...I'll be shopping for a 24v version..Be well..
I tried I think exactly what you are saying with my 1000 watt 12 volt inverter I thought I could use it as a 24 volt system but as soon as I connected two of my 100 watt 12 volt solar panels in series the voltage must have exceeded it's 10.5-32 VDC and it would not work, I think that makes sense as the max panel voltage is around 18 volts each so two in parallel bump it to 36 volts and that exceeds this "12 volt" inverters range, hope this helps
@@dskentfield yes my 1300w 24v gave me more power then the 12v 1000w. You should look into the new growatt inverters, they're priced right and more efficient. I say better to get something good the first time!
Interesting, thanks.
The difference looks like the fuse. One is grey the other black. Below the yellow inductors in the middle.
I blew the fuse on my 1000, so I suspect that, or by 1400 they mean "SOLAR IN WATTS" vs. Output, as these are something like 80% efficient only.
can confirm, seems about 20% lost to heat. Also the fans don't modulate, either on or off, and usually too late causing to run hot.
HOWdy KC-DIY-H,
Thanks
COOP
...
So I can buy the 100W inverter and pull 1400W from it? That will definitely save some money
I think there is something that is different between the two that limits the output. I have seen videos with the 1000 watt one hooked up to batteries, and it maxed out at 990 watts. My 2 1300 watt inverters cycle with the AC at about 700w in full sun, and they run hot. I have heard they don't last long maxed out.
maybe the difference is in the firmware that enables more output power to one vs the other . Or the 1300 is another chinese over speced marketing scam. The way to test it is put some batteries in the inputs terminals and measure power on the AC side. I'd like to see the results.
Damn I expected the same.
Just ordered the 1300w
Few bucks more so I'm not upset either.
Was hoping for bigger capacitors or better cooling. But like Tes Tos said its to be expected when it comes to China. Same manufacturer making the same 10 different labeled devices.
Probly get a better price on Alibaba for these if you bought in bulk.
Thanks it is as I expected.
I wouldn't expect to see a difference in performance until you saturate the input power of the 1000W unit. Provide a greater than 1300W/0.8_efficiency = 1625W power source (solar or battery) to each unit. And the load side needs to be more then the GTIs can deliver (greater than 1300W) Only then can you determine the maximum output of each unit.
maybe if they were liquid cooled. The weak link IMHO is the heat sinking, and only one fan (sleeve bearing) exhausting, no intake or airflow is direct over the heatsink where it matters.
I'm not even surprised
Different firmware.
...maybe the IC with the green sticker PASSED could be the bios & like @awesomedee5421 could be different firmware? Glad it was only $6 more; scammers!