First 3kw DIY solar with PowMr split phase inverter10kw

[42OhmsPA]

I was trying to explain how the refund went on the initial inverter and the new stuff I bought.

I got the part of it.

This is what confused me.

I got a killer deal on a single phase 220-240v 6.5kw 48v

Still waiting on the inverter. One cool thing about this model is it can actually be programmed to put out as low as 120v single phase.

Do you have a model number or product link for the AIO you got?

My main load will be 230v which is a mini split. It consumes max 2300w. So the plan is dedicate the solar panels and inverter to that load.

I think you will be wasting a lot of potential power...

My second largest constant load is the refrigerator so I was thinking of doing a smaller solar array with one of these grid tie micro inverters for the smaller load. Thoughts ?

Don't do it.

I'm curious how those little micro inverters work apparently they work.
I wonder if they push enough power to the grid of one of the phases we're it offsets the consumption without back feeding the meter.

Don't do it...

So you have 120V and 240V loads? Are you in the USA?

 

[Rconce01]

I got the part of it.

This is what confused me.


Do you have a model number or product link for the AIO you got?

I think you will be wasting a lot of potential power...

Don't do it.

Don't do it...

So you have 120V and 240V loads? Are you in the USA?

Sorry it was alot for one post.

Yes this I can add the product link for the inverter but some forums ban members for that soni didn't want to risk it. But this is the manual and product info. https://powmr.com/products/6500w-220vac-24vdc-hybrid-inverter-charger

Yes I'm in the US my typical consumption is now under 20kw a day from the grid. 75% of that is Air-conditioning on 240v 10% is instant water heater(approx 2kw and it's a late night load with a 15 min 50amp drain) and the remainder is 120v my refrigerator computer and monitors. Typical 24 hour loads see below. They get to about double that into the summer so I'm looking at approx 35-40kw in the summer.

Im not looking to invest into batteries at this time due to cost versus return on investment.

I have the 6 new Trina 360w panels.

So I just need a little help on getting loads distributed without a split phase inverter.

So far my total expenses are $600 solar panels and $350 on the inverter and misc wires breakers $100.


Typical bill in the summer can be over $350

 

[Mattb4]

I do not recommend using a Euro 230vAC 50hz AIO in the US unless you fully understand how the US split phase system operates. Most US designed devices require 2 hot legs (L1, L2) and a neutral leg and the Euro standard is 1 hot leg at L1 and the neutral at L2.

Yes the Euro/Asian standard 230vAC single phase AIO's are cheaper but they often are a poor choice if not a completely wrong choice for the US market.

 

[Rconce01]

I do not recommend using a Euro 230vAC 50hz AIO in the US unless you fully understand how the US split phase system operates. Most US designed devices require 2 hot legs (L1, L2) and a neutral leg and the Euro standard is 1 hot leg at L1 and the neutral at L2.

Yes the Euro/Asian standard 230vAC single phase AIO's are cheaper but they often are a poor choice if not a completely wrong choice for the US market.

Understood. This one does 50hz or 60 hz. The minisplit doesnt need a neutral just 240v and ground. So the goal is to dedicate the inverter to mini split loads or new 220v single phase loads.

 

[Mattb4]

A while back I considered using a 230vAC single phase AIO and buying Euro standard appliances that could be powered by it. I eventually decide against it. Some folks at the Forum here have bought them and added transformers to the output to get split phase. There are some special requirements and problems going that route.

 

[42OhmsPA]

Sorry it was alot for one post.

Yes this I can add the product link for the inverter but some forums ban members for that soni didn't want to risk it. But this is the manual and product info. https://powmr.com/products/6500w-220vac-24vdc-hybrid-inverter-charger

Yes I'm in the US my typical consumption is now under 20kw a day from the grid. 75% of that is Air-conditioning on 240v 10% is instant water heater(approx 2kw and it's a late night load with a 15 min 50amp drain) and the remainder is 120v my refrigerator computer and monitors. Typical 24 hour loads see below. They get to about double that into the summer so I'm looking at approx 35-40kw in the summer.

Im not looking to invest into batteries at this time due to cost versus return on investment.

I have the 6 new Trina 360w panels.

So I just need a little help on getting loads distributed without a split phase inverter.

So far my total expenses are $600 solar panels and $350 on the inverter and misc wires breakers $100.


Typical bill in the summer can be over $350

As long as they aren't affiliate links you can link away.

@Mattb4 has already covered my concerns with the new unit you purchased.

 

[Rconce01]

A while back I considered using a 230vAC single phase AIO and buying Euro standard appliances that could be powered by it. I eventually decide against it. Some folks at the Forum here have bought them and added transformers to the output to get split phase. There are some special requirements and problems going that route.

Thanks that's appreciated. I'm going to see how it goes. My main reason is the lowest cost split phase is well over 1,300 which is a bit much at this time

 

[Rconce01]

So this is the new inverter. I got a chance to hook it up to the main panel and I have a question. While It was running I accidentally disconnected the battery and it threw a fault code. Since that point on wards it shows there's a load hooked up to it and pulls a little over 2 amps on the 240v input feed from the panel with no loads connected. Typically shouldn't the idle consumption be much less with no load connected?
I'm wondering if I damaged it accidentally when I disconnected the battery while it was operational?

The idle consumption of 2.2 amps is kinda crazy. In the first photo you can see that's approx the same consumption of the mini split load in the inverter output.

Should I be getting something closer to 2w with the inverter on and no load connected?

 

[sunshine_eggo]

LOL... no... That's the idle power of only the MPPT.

My teeny 24V/3kW 120V PowMr burns 38W.

You should be around 80-100W

 

[Rconce01]

LOL... no... That's the idle power of only the MPPT.

My teeny 24V/3kW 120V PowMr burns 38W.

You should be around 80-100W

Thanks so what's the 2w mentioned in the manual ? Is standby power the power it consumes when connected to power and the button on the side is off?

I found in another part of the manual it states less than 50wwith no load see attached.

On another thread in this forum a guy with a similar observation on a different model inverter of the same capacity had the same 2 amp reading with a clamp on meter and a forum member expressed its something called "reactive power" consumption which isn't true voltage x amps wattage consumption. He mentioned sometimes certain electrical grid meters don't measure that load and only measure true watt consumption which can only be achieved with a kill a watt meter. Thoughts?

This one also makes a electrical type buzzing noise when it's on. Is that typical?

 

[sunshine_eggo]

Thanks so what's the 2w mentioned in the manual ?

Per above, it's the draw of the MPPT itself.

I found in another part of the manual it states less than 50wwith no load see attached.

Lying liar from Liesville.

On another thread in this forum a guy with a similar observation on a different model inverter of the same capacity had the same 2 amp reading with a clamp on meter and a forum member expressed its something called "reactive power" consumption which isn't true voltage x amps wattage consumption. He mentioned sometimes certain electrical grid meters don't measure that load and only measure true watt consumption which can only be achieved with a kill a watt meter. Thoughts?

It's a years-old story at this point. Cheap voltronics-type AiO (Growatt, MPP Solar, SNRE, older EG4) burn about 40-50W per 3000W of inverter power output.

This one also makes a electrical type buzzing noise when it's on. Is that typical?

No idea. My PowMr is silent when idle. Noises are usually capacitor squeal (very high pitched sound shortly before a capacitor fails) or coil whine that may induce vibration or buzzing in adjacent components or the case.

 

[42OhmsPA]

Edit. Didn't see Eggo's reply.

Thanks so what's the 2w mentioned in the manual ? Is standby power the power it consumes when connected to power and the button on the side is off?

MPPT.

I found in another part of the manual it states less than 50wwith no load see attached.

That's with power saving enabled, check the manual for a description.

On another thread in this forum a guy with a similar observation on a different model inverter of the same capacity had the same 2 amp reading with a clamp on meter and a forum member expressed its something called "reactive power" consumption which isn't true voltage x amps wattage consumption. He mentioned sometimes certain electrical grid meters don't measure that load and only measure true watt consumption which can only be achieved with a kill a watt meter. Thoughts?

See here and post 39 for consumption from AC and DC.

This one also makes a electrical type buzzing noise when it's on. Is that typical?

Never heard anything like that from my ASF. I'd be checking connections and trying to determine where it's coming from.

Edit 2 - above info applies to original inverter the OP had, not the replacement he swapped for.

 

[Rconce01]

Edit. Didn't see Eggo's reply.

MPPT.

That's with power saving enabled, check the manual for a description.

See here and post 39 for consumption from AC and DC.

Never heard anything like that from my ASFI. I'd be checking connections and trying to determine where it's coming from.

This one definitely doesn't have any power saving mode option. The explanation the seller provided was that the power factor at idle is .08 causing the 2amp load on the amp meter which is actually only less than 50w of power consumption.

 

[42OhmsPA]

This one definitely doesn't have any power saving mode option. The explanation the seller provided was that the power factor at idle is .08 causing the 2amp load on the amp meter which is actually only less than 50w of power consumption.

My bad, I was wrong. I forgot you swapped inverters from the one in the title.