diy solar

diy solar

Has anybody used the Rosie inverter yet for prime time?

400bird said:
I added a midnight charge controller to my system with an XW Pro. I'm glad not to spend the extra for an interface I don't and can't need.
After all, I already purchased the Schneider version...
Click to expand...
I was wanting to use a MNS charge controller for the xwpro if I get that inverter but doesn't that throw everything off regrding the system cohesiveness and control from the Schneider home insight or whatever that's called. Perhaps I'm incorrect but I thought the home insight allowed full control and monitoring of the entire system...inverters and controllers. I'd assume I'd have one control and monitor for the xwpro stuff and another seperate system for the MNS charge controllers. Doesn't the inverters and controllers communicate?

MidNite Solar 600VDC Hawke's Bay MPPT Charge Controller

The Hawke’s Bay from MidNite Solar is a low-cost but full-featured high-voltage MPPT charge controller (600VDC) available in 90A and 120A vented sizes.
www.altestore.com www.altestore.com
 
realpinochet said:
I was wanting to use a MNS charge controller for the xwpro if I get that inverter but doesn't that throw everything off regrding the system cohesiveness and control from the Schneider home insight or whatever that's called.
Click to expand...
I'm missing data in the Schneider (DC PV output)
realpinochet said:
Perhaps I'm incorrect but I thought the home insight allowed full control and monitoring of the entire system...inverters and controllers.
Click to expand...
It does, but only Schneider equipment.
realpinochet said:
I'd assume I'd have one control and monitor for the xwpro stuff and another seperate system for the MNS charge controllers. Doesn't the inverters and controllers communicate?
Click to expand...
Within the same brand yes. But, that isn't needed to function. They're all programmed individually and functional based on DC voltage set points, sun, and time settings.

I would have purchased the Schneider charge controller, but it doesn't include arc fault. Schneider's arc fault is a separate box that includes RSD for something like $900.
Instead I went with the Midnite Classic with integrated arc fault, a Midnite combiner, and Tigo RSD transmitter. The total came out about $700 less
 
400bird said:
I'm missing data in the Schneider (DC PV output)

It does, but only Schneider equipment.

Within the same brand yes. But, that isn't needed to function. They're all programmed individually and functional based on DC voltage set points, sun, and time settings.

I would have purchased the Schneider charge controller, but it doesn't include arc fault. Schneider's arc fault is a separate box that includes RSD for something like $900.
Instead I went with the Midnite Classic with integrated arc fault, a Midnite combiner, and Tigo RSD transmitter. The total came out about $700 less
Click to expand...
Ok, Yes I like the MN charge controller better but was wondering if it was worth it due to loosing some of the benefits staying within the same linup.
 
realpinochet said:
Ok, Yes I like the MN charge controller better but was wondering if it was worth it due to loosing some of the benefits staying within the same linup.
Click to expand...
I do my data and usage tracking outside of Schneider, so I'm not missing anything there.

There's some functionality lost due to not using a Schneider charge controller. Based around being grid tied where the inverter could invert the excess DC solar for grid sell.

I would have liked to still with Schneider for the charge controller, but I couldn't justify the extra expense.

Plus, I like that Midnite tried to source as much as possible in the US. I'm not isolationist or xenophobic, but I don't want to source everything from China. That's where Schneider builds the XW, prob everything they make.
 
400bird said:
I do my data and usage tracking outside of Schneider, so I'm not missing anything there.

There's some functionality lost due to not using a Schneider charge controller. Based around being grid tied where the inverter could invert the excess DC solar for grid sell.

I would have liked to still with Schneider for the charge controller, but I couldn't justify the extra expense.

Plus, I like that Midnite tried to source as much as possible in the US. I'm not isolationist or xenophobic, but I don't want to source everything from China. That's where Schneider builds the XW, prob everything they make.
Click to expand...
I my opinion ...America First all the way. I believe Schneider said it was made in either india or mexico.
 
Maybe it was the PDP that was made in China?
I just checked the label on the XW pro, I thought for sure it was made in China. But the sticker on the inverter says India.
 
MrM1 said:
If you go Schneider inverter, might want to also consider Midnitte Solar switch gear rather than XW switch gear. I tended to like MN's E-Panel better than Schneiders solution for my SW .

Category Products - MidNite Solar's

MidNite Solar Category Products.
www.midnitesolar.com
Click to expand...
Those E-panels are so ridiculously over priced for a sheet metal box, bus bar and some breakers. I was hoping to avoid using them and just use a wire way and some QO boxes and breakers as they are rated for AC/DC. E-panels make it easy but they are so dam expensive IMHO. I believe there's a few users here that have installed single/multiple inverters without epanels and passed inspection..perhaps they can chime in.
 
I wired 4x Sunny Island with rigid and flexible conduit. You'd be surprised how quickly you reach maximum conduit fill.
Mine was done weather tight.

If you use 6x6 or 8x8 boxes, may be easier to deal with all the wires.

I use QO breaker boxes, and source at a discount on eBay or home improvement stores. But it does add up.
Midnight has some convenient packages, but I also balked at the cost (especially since my inverters cost me $0.25 on the dollar)

What DC do you need? QO is good up to about 70A and 125V. Big systems should be wired at higher voltage. Look at Hawks Bay charge controller, 120A 600VDC. But I favor AC coupled.

Midnight (CBI) breakers look like the way to go for PV, or else Schneider. If any are needed at all. Multiple poles for higher voltage. Midnight (Carling) breakers for battery. Midnight (CBI) magnetic-hydraulic AC breakers are good too. I've switched to those for lower, more controlled resistance where I have multiple inverters paralleled. Also to protect my air compressor motor, after frying old one due to brownout. (Thermal-magnetic breakers let windings cook during long delay for modest overload. thermal-magnetic have faster trip.)
 
While I agree they are hi, they are less than Schneider (I think)and , clean.

I just bought a 4 ft 8x8 wire trough. Those are not cheap. By the time you buy it breakers, din rail, bars, accessories, several variations of 300 Amp rated busbars, cutting tools and time... The ePanes don't look so bad.
 
Message #12:

Rosie Testing in Texas!

Rosie Testing in Texas!
midniteftp.com

Would start 5HP compressor into 120 psi or 135 psi, but tripped after several seconds at 135 psi.

Here's a table that says 28A @ 230V (6.4kVA) for 5 HP motor under full load


Power factor makes the load worse that straight wattage, which would be lower.

Here's one from Grangers, same 28A rating:


Asking a bit much from poor little Rosie.
 
Hedges said:
Message #12:

Rosie Testing in Texas!

Rosie Testing in Texas!
midniteftp.com

Would start 5HP compressor into 120 psi or 135 psi, but tripped after several seconds at 135 psi.

Here's a table that says 28A @ 230V (6.4kVA) for 5 HP motor under full load


Power factor makes the load worse that straight wattage, which would be lower.

Here's one from Grangers, same 28A rating:


Asking a bit much from poor little Rosie.
Click to expand...
That's what we need to see...I bet the xwpro or radian would start it. Maybe?

@SpongeboB Sinewave
 
Hedges said:
Message #12:

Rosie Testing in Texas!

Rosie Testing in Texas!
midniteftp.com

Would start 5HP compressor into 120 psi or 135 psi, but tripped after several seconds at 135 psi.

Here's a table that says 28A @ 230V (6.4kVA) for 5 HP motor under full load


Power factor makes the load worse that straight wattage, which would be lower.

Here's one from Grangers, same 28A rating:


Asking a bit much from poor little Rosie.
Click to expand...
That's a good thread so far seems like Rosie is a stella(r) beast.
This thread really has me rethinking my XW Pro plans...
 
42OhmsPA said:
That's a good thread so far seems like Rosie is a stella(r) beast.
This thread really has me rethinking my XW Pro plans...
Click to expand...

Why are you re-thinking the XW pro? Do you think a Rosie has the horse power of an XW?

After reading the full thread at The MN forum, I'm seriously considering a Rosie. It'd mean I'd have to buy a 48v bms and another battery bank.. I have 2 230Ah 24v DIY batteries and 1 271Ah 24v battery. I'd convert and keep and add to the 230Ah, and probably sell the 271Ah batteries with bms. Then I'd have to reconfigure everything
 
MrM1 said:
Wait ... Is Rosie a Hi Frequency inverter?
Click to expand...
Yes. If I remember MNS said there's no reason a HF can't surge as well as a LF inverter and Rosie / B17 was suppose to prove it. Now I want to see it myself toe to toe. I'd rather have the HF due to lower idle and it weighs much less..but the xw is known for starting 4ton ac units and deep well pumps etc and holding a high surge for a long period...like welding.
 
realpinochet said:
Yes. If I remember MNS said there's no reason a HF can't surge as well as a LF inverter and Rosie / B17 was suppose to prove it. Now I want to see it myself toe to toe. I'd rather have the HF due to lower idle and it weighs much less..but the xw is known for starting 4ton ac units and deep well pumps etc and holding a high surge for a long period...like welding.
Click to expand...
Right! Agreed. I thought I asked MN if it was LF. Guess I didn't.

I'm doing a 3/4 hp shallow well pump every day dozens of times a day for the past 5 years with an SW 4024. Along with a full size fridge (but it has been an LG inverter compressor the past 3 years) and a freeze, and my 1000 watts of grow lights, and the SW never blinks an eye.

I'd be concerned the Rosie might b in over her head with that, especially if I added in a 3 ton heat pump.

I'm pretty sold on LF. Inverters
 
MrM1 said:
Right! Agreed. I thought I asked MN if it was LF. Guess I didn't.

I'm doing a 3/4 hp shallow well pump every day dozens of times a day for the past 5 years with an SW 4024. Along with a full size fridge (but it has been an LG inverter compressor the past 3 years) and a freeze, and my 1000 watts of grow lights, and the SW never blinks an eye.

I'd be concerned the Rosie might b in over her head with that, especially if I added in a 3 ton heat pump.

I'm pretty sold on LF. Inverters
Click to expand...
Right, kind of hard to replace 60lbs or so of a copper / ferrite toroid like the xwpro has. Side note..wonder which one is quiter for Ham radio HF bands?
 
I also have an Outback Psx-240 autotransformer running in line with my 240vac out of my SW for load balancing across L1 / L2. Works perfectly.

I wonder if I could add that to the Rosie for addled inductive load starting capability?

But being HF... I'd still wonder if ... Yeah it started that AC today, and maybe tomorrow. And it did it again under locked conditions... But will it do it every day for the next 10 to 15 years? I have no doubt an XW or equivalent LF victron would.
 
Inductors aren't going to do it. Try some math and you'll find how ridiculously big they would have to be, to store even one cycle of AC. Easier to get capacitors to store significant energy. Ferro-resonant transformers do that, but they are massive for just a few hundred watts.

I think I've figured out the HF/LF difference. If you just have transistors pulling up primary windings to battery voltage, fault current capability from the transformer is determined by winding resistance, something like 30x operating current (into zero volts.) Whatever the transistors can do, you get. Energy is not stored in the core, it is coupled to secondary.

HF, you are limited by energy stored in the core (per cycle, so higher frequency transfers more, but with lots of heating.)

The VA and amps I came up with for 5 HP induction motor air compressor didn't exceed Rosie's ratings. Maybe she has more trouble with reactive loads, even though VA less than rated watts. Maybe battery voltage was too low under load, requiring more current. We weren't told amperage, just "5 HP compressor".
 
You must log in or register to reply here.

Similar threads

4
Midnite Solar Rosie on sale
3 4 5
Replies
110
Views
6K
Cmiller
C
A
Inverter Selection for Off-Grid Home
Replies
14
Views
1K
BlindBadger
B
idiot-ranch
Class T fuse size and location for multi-inverter setup
Replies
5
Views
939
idiot-ranch
idiot-ranch
L
PowMr - 24v Off-Grid Solar Inverter MPPT and 120A charger - issues with it! Can it be repaired
Replies
8
Views
2K
lycaki
L

diy solar

diy solar
Back
Top