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lakeweb

New member
Joined
Jul 28, 2021
Messages
7
Hi,
I got here because of this thread. I installed that inverter last week. But for an issue with panel voltage floor, it has been working fine for 5 days now. The darn thing won't go above 780 watts when it is cold. Drops a bit more when 100° out there.

So I see there are a lot of smart people here. Hope I can learn and be helpful.

Best, Dan.
 

Cheap 4-life

Member
Joined
Aug 3, 2020
Messages
372

There’s a link/group for those inverters. I’m the moderator there. We will help you as much as possible
 

Cheap 4-life

Member
Joined
Aug 3, 2020
Messages
372
What voltage are you sending to the inverter. Are you using batteries or just solar. If your voltage is at the lower end the inverters will not produce max output. You should really not be pushing the 1000w inverter past 750w anyways
 

italianuser

Member
Joined
Feb 25, 2020
Messages
340
Welcome @lakeweb :)
I didn't understand your problem, just woke up, but I can surely say that any electronic circuit is heat dependant and normally has maximum/best throughput at 20-25°C (68°F-77°F). PV panels, too, if I pour water on mine when temperature goes over 40°C (104°F) they work better and produce more.
 

lakeweb

New member
Joined
Jul 28, 2021
Messages
7
Hi italianuser & Cheap for-life,
Thanks. I've joined that group now, though I'm not much of a facebook user. So, the details.
Best as I can make out the internal voltage reference is off by 1.4 volts at the panel sense. It says that my panel voltage is 47.5 when it is actually 49.9 volts. So I'm guessing that the firmware has a lower limit of 47.5 volts that it will take the panels to at maximum output. But because the panels are floating at almost 50 volts, it is just not getting the current they are capable of.
Best, Dan.
 
Last edited:

Cheap 4-life

Member
Joined
Aug 3, 2020
Messages
372
Do you have the 22-65v or 45-90v version?
 

Cheap 4-life

Member
Joined
Aug 3, 2020
Messages
372
Unfortunately your voltage is to low. You are causing the inverter to use way to many amps causing unneeded stress on the inverter. Optimal voltage for the 45-90v inverter is in the middle so roughly 68v. This is why you can’t get more production from the inverter. The 22-65v inverters is best to use with voltage that low. I think the number is 50v when the 45-90v inverter starts lowering its output
 

Korishan

Moderator
Joined
Jan 7, 2017
Messages
6,522
Please keep the introductions section to introductions only. Questions and comments should go into their respective sections on the forum. This makes it a lot easier for others to find useful content. Not every one reads all introduction messages.
 

Cheap 4-life

Member
Joined
Aug 3, 2020
Messages
372
My mistake Korishan, didn’t realize that this was introductions
 

Wolf

Active member
Joined
Sep 25, 2018
Messages
1,563
So I see there are a lot of smart people here. Hope I can learn and be helpful.
Welcome to SLS @lakeweb
Ha I wouldn't call us smart we just have a lot of experience collectively.
Trial by fire metaphorically speaking hopefully not in reality.............. :unsure:
The college of "Hard Knocks" as it were.:p
If you can't find the answer to something regarding batteries, (18650 for me not this newfangled LiFePO4 stuff) solar power and panels, inverters, and anything that goes in between than ask here!❓
Real recycling enthusiasts use cylindrical 18650 Li-Ion cells.( My opinion)
Billions of them out there no need to buy new.

So Welcome to Second Life Storage and enjoy.
Wolf
 
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