diy solar

diy solar

Test run with a small system first?

I run two of those higher PV voltage units. The last one was on special from Ebay for ~$365. I have an ongoing review on that unit in the AIO Forum. Yes the AC out would use a 30a breaker if you wanted to take full use since it can output 27.5a.

The 4000w limit would put you into over paneling realm since it is an 80a battery charge max. 80a at 25vDC =2000w That is not necessarily bad but would lead to maxing out production at the 2000w level.

Big thing to keep in mind with the high voltage PV units is startup voltage and minimum operating voltages. Your Vmp should be about 10% higher than minimum for the AIO.

ETA: Funny thing when I looked back at the my Ebay purchase I happened to notice this 4000w AIO* with some nice looking specs. It is a name I have not see before, Sumry. But not bad priced for a 140a mid range voltage PV AIO. $348 Maybe if I get some extra money I will try it out.

*https://www.ebay.com/itm/3151948840...lp:4429486&itmmeta=01HRAAKKZCETC9YF372G9D1SVB
 
Last edited:
Mattb4 said:
I run two of those higher PV voltage units. The last one was on special from Ebay for ~$365. I have an ongoing review on that unit in the AIO Forum. Yes the AC out would use a 30a breaker if you wanted to take full use since it can output 27.5a.

The 4000w limit would put you into over paneling realm since it is an 80a battery charge max. 80a at 25vDC =2000w That is not necessarily bad but would lead to maxing out production at the 2000w level.

Big thing to keep in mind with the high voltage PV units is startup voltage and minimum operating voltages. You Vmp should be about 10% higher than minimum for the AIO.
Click to expand...
Oh. So you have a PowMR AIO? Cool. Hopefully they can last a while. lol I probably wouldn't max out the voltage from the solar panels because that would not be wise to do, in my opinion. I would probably still put a 30 amp fuse between the panels and the battery/inverter so the unit wont fry and a switch too so I don't shock myself to death trying to do any maintenance/upgrades. lol

It would be great if i could find a battery dealer or a place to buy panels near me so I could avoid major delivery fees. I imagine those would be expensive since panels are so large and batteries so heavy. But that is likely not an option. Now I just have to nail down where I will get those.
 
Mattb4 said:
ETA: Funny thing when I looked back at the my Ebay purchase I happened to notice this 4000w AIO* with some nice looking specs. It is a name I have not see before, Sumry. But not bad priced for a 140a mid range voltage PV AIO. $348 Maybe if I get some extra money I will try it out.

*https://www.ebay.com/itm/315194884064?_trkparms=amclksrc=ITM&aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=260258,260884&meid=a6fb758418c1406c8c0ae867c228eb84&pid=101875&rk=4&rkt=4&sd=305216357001&itm=315194884064&pmt=1&noa=0&pg=4429486&algv=SimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V2V4ItemNrtInQueryAndCassiniVisualRankerAndBertRecallWithVMEV3CPCAutoWithCassiniEmbRecall&_trksid=p4429486.c101875.m1851&itmprp=cksum:315194884064a6fb758418c1406c8c0ae867c228eb84|enc:AQAIAAABYHD%2FO%2BVoFoPPIoZ2g0kOZxWd85mWuIHekSp3qag7zFfwObZeQoitzE%2FDCfcejfO%2BzOLmzZmy11RrgWpA56KM9DpasK%2BGtGYwCFvgaK6ijP5AqShEUhT8f2oX6hvndJ3G0oWH8DD1DlBWseQltpxcSDW2Uu52NrseaxeINpsrDP6vx7ny%2BkPKauMa3yeSanWiilaGfIcMFkc7ri2cYBNLV2fciR470PAgaQw--99prL4bibagWp9bNNxVP4sJRv5EFlOBRd9T3VZijznLdmIpgt35fjhN8%2F5Yh%2FzOZiKqzmrl7Y5nyNvPJwiVFEb%2BW%2FB%2BLxCgkGkT7sPYdwe7z170t5chMhcgvMRqrddSQplkd%2Ff5oHq2YNf4P0OSDrhLDVzsExobnLdpcu1EaaysZJCCKltF%2BxX2CJ5p7DBBixqBmRrSSib72mnaCD4FSOJ8fPgRhFUaEGyKEK2pmntT6j6hGtg%3D|ampid:pL_CLK|clp:4429486&itmmeta=01HRAAKKZCETC9YF372G9D1SVB
Click to expand...
oh wow. that ebay one really is cheap for what it claims to be.
 
Mattb4 said:
There are many smaller capacity 120vAC AIO's.
Click to expand...
I've only found 4 in my years. The MPP 1012 (worked surprisingly well), the Eco-Worthy 600w (with a PWM controller), and two versions of the Ionic LF (a 2Kw and a 3Kw, one of which I used in my camper build). What other 12v AIO's do you know about?
 
Last edited:
powmr.com

3000W 110Vac 24Vdc All In One Inverter Charger

PowMr 3000Watt All In One Inverter Charger 120Vac 24Vdc with 60A MPPT Solar Charge Controller PV 100V for lithium/lifepo4 Battery And Lead Acid Battery.
powmr.com powmr.com


@Mattb4 How do you monitor the PowMR? The user manual for the linked one says that it has an RS485 communication port, which i think is modbus. I actually thought that the solar assistant program was open source, but it doesn't seem to be fully the case (requires you to buy a license to use). it seems like it is possible to do it with home assistant with a bit of work, but i don't know.
 
I don't bother with monitoring remotely. The AIO has screens that give you plenty of information and I run AC meters on output and a PV shunt setup on PV input. That I used because the indication at the AIO is not perfectly accurate. Which by the way any remote monitoring program would simply mirror.


Rednecktek said:
I've only found 4 in my years. The MPP 1012 (worked surprisingly well), the Eco-Worthy 600w (with a PWM controller), and two versions of the Ionic LF (a 2Kw and a 3Kw, one of which I used in my camper build). What other 12v AIO's do you know about?
Click to expand...
120vAC AIO's not 12vDC AIO's. There are many designed off the Voltronic base with many names such as MPP, Growatt, EG4 (earlier versions) and there is the SRNE units (rebadged) like Midnite Solar DIY units, and teh EAsuns I used to run and now the PowMR (Not all PowMr are SRNE).

This Sumry I just found I have no idea who is the OEM.
 
 
Mattb4 said:
120vAC AIO's not 12vDC AIO's. There are many designed off the Voltronic base with many names such as MPP, Growatt, EG4 (earlier versions) and there is the SRNE units (rebadged) like Midnite Solar DIY units, and teh EAsuns I used to run and now the PowMR (Not all PowMr are SRNE).
Click to expand...
Doh! My bad. Stupid extra 0 I didn't see. :fp2
 
SignatureSolarJess said:
Yes, the BMS isn't rated for more than its individual voltage. You won't be able to communicate properly.
Click to expand...
oh ok. good to know. that would mean I would have to either get a battery that is rated to receive 24 volts or wire up dumb batteries with an external BMS right?
 
Mattb4 said:
My review of the PowMr is at: https://diysolarforum.com/threads/power-up-review-powmr-srne-pow-lvm3k-24v-h.65567/

If a person needs a bullet proof setup with customer service and real Warranty I would recommend going with one of the Tier one names. But for starter systems there is some decent cheap alternatives.
Click to expand...
For sure when I do my main system it will be something reliable and will have good customer support. In the end with this system, I could just keep it and run random stuff at my house or take it to my grandparents place where my dad who is very knowledgeable on things like this can use it. he likes to do jerry rig things anyways. lol

will probably take me awhile to find batteries and solar panels though.
 
Funny enough, PowMr is made by a company called Tenmak and I've always gotten quick responses via email from them. As far as cheaper systems go, they've improved a LOT over the years, I'd almost kick them up to Tier-2 quality nowadays, maybe Tier-2.5.
 
Rednecktek said:
Funny enough, PowMr is made by a company called Tenmak and I've always gotten quick responses via email from them. As far as cheaper systems go, they've improved a LOT over the years, I'd almost kick them up to Tier-2 quality nowadays, maybe Tier-2.5.
Click to expand...
oh well thats good. makes me feel a bit better to drop money on this thing.
 
You must log in or register to reply here.

Similar threads

S
using load capaciter test for first time
Replies
2
Views
130
stormtracker78
S
H
First timer needing advice on shed system design for off-grid.
Replies
2
Views
247
Hellraising_Paladin
H
WorldwideDave
Maximum PV for Battery
Replies
8
Views
294
WorldwideDave
WorldwideDave
R
Small off-grid cabin system design (in reverse?)
2
Replies
20
Views
858
Nan_wpg
N
Luismclaughlin
Brand new to solar- any suggestions
Replies
13
Views
510
Luismclaughlin
Luismclaughlin
Back
Top