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MPP Solar vs separate components

ghostwriter66 said:
I am against any type of All-in-ones for the Very reasons listed as Negatives -- these are pretty substantial considerations ... if i want to upgrade just my inverter you have to do the entire thing ... or your happy with the inverter but need a larger SCC ... etc etc
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If I need a bigger inverter I’ll just add one on separate 120 circuits.
 
KBWaldron said:
I’ve got the MPP 2.4 kWh model.
My thoughts and observations:
Positives
  • you’ll require less space for the AIO (All-In-One);
  • wiring is less complex;
  • programming is mostly in one place;
  • easier monitoring through a single interface.
Negatives
  • If it breaks you lose a number of your power elements (SCC, inverter, automatic transfer switch). Easier to replace a single element in a non-AIO system;
  • upgrading to a higher power level may be more expensive. You may only need to replace one item in a non-AIO
  • The charge and discharge lines are one and the same in as far as the inverter is concerned, so a BMS that can stop charging or discharging effectively ends up doing both when it does either;
  • you still need a method to ensure you don’t over-discharge through your DC service draws. Either a BMS or another battery protect device.
If I was designing an AOI I would route DC load through the AOI so it could protect over-discharge on both A/C and D/C, add a DC buck/boost converter option, a BMS manager with optional BMS sub-boards for each battery, bays for A/C and D/C sub-panels and breakers, and a breaker for the solar input lines.
Finally, I would make it user upgradeable and repairable by making each subsystem one that could be pulled and replaced like a circuit breaker in a household breaker box.
Power and control buses would be used for distribution and control.
So basically a plug and play power system. Order what you need to start then upgrade as you go. No messy wiring, trying to find space for new elements and having to retire.
Click to expand...


Sounds like a great business plan, lol. You should get Will and his team together and I am sure many us would buy in that.
 
KBWaldron said:
Inverters don’t charge, they discharge. What did you mean to say?
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its an all in one inverter, charger, transfer switch, mppt charger controller.
So it charges.
But does the neutral ground bond switch on tranfer?
 
beckkl said:
Any thoughts on how loud the MPP units are? If there is loud fan running all the time, it is sort of a deal breaker. I have no real way of isolating that sound.

Specifically the 1012LV-MS
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I’ve the 2424. Most people don’t keep these out in the open, usually in a small alcove. It’s about the same sound as my server Which admittedly has cheap fans. If I find it bothers me I’ll put a better fan in.
 
@beckkl if you have any questions on the procedure just holler also please let us know how it turns out.
Pictures would be awesome.
Good luck.
 
beckkl said:
Any thoughts on how loud the MPP units are? If there is loud fan running all the time, it is sort of a deal breaker. I have no real way of isolating that sound.

Specifically the 1012LV-MS
Click to expand...
Mine is not as loud as I expected, and it’s on the wall in the main living space. It does switch on when charging and when under heavy loads. I work for an IT company and am on the phone often and it doesn’t bother me.
 
Does anyone know the fan size(s) of the 1012LV-MS? I'm thinking about buying one for a solar generator / UPS0 project, but the fan noise will drive me crazy. I'm thinking I'd upsize them to 120-140mm with adapters if possible and put 200mm fans on the generator case itself. Plenty of airflow without the noise.

I've basically settled on the MPP Solar because I can't find an AC automatic transfer switch that switches faster than 80ms that isn't hundreds of $$ and inverter/chargers with builtin ATS tend to be $400+.
 
smoothJoey said:
The nice solution here is an inverter/charger.
inverter/chargers are actually inverter/charger/transfer_siwtches.
the mpp is all of that plus a mppt solar charge controller.
I just did a big write up on how to integrate it.
Would be happy to help.
Click to expand...
And about the fan noise, if it is a 12v unit they’re very quiet, the 24v unit can get noisy when it’s charging at 60+ amps or the inverter is doing over 2000 watts otherwise it’s quiet.
 
I've noticed my fan only really runs loud when charging the battery via shore power. Its also in an enclosed storage area, so fan noise hasn't been a big issue.
 
One thing I can say with this unit, is that the 1000W inverter is limiting. I pulled the microwave and A/C out, but I should have also pulled the electric water heater. It was a complete miss on my part. The real pain is that you are limited to 1000W REGARDLESS of if you are running off battery or shore power. My wife was not happy when she realized she couldn't run her little nespresso machine, even when plugged into a pedestal at the campground. I ended up putting in a separate outlet that runs directly off shore power. But it kind of stinks that I have to run an extension cord from the opposite side of the camper.
 
Good point. I have an AIO and it is very compact - mounted on the folding dolly along with LiFePO4 battery. It runs very quite.
 
these things look pretty cool. one question - how do you power DC stuff? I don't see any DC outs on any of the photos I've been able to find...
 
furiousgeorge said:
these things look pretty cool. one question - how do you power DC stuff? I don't see any DC outs on any of the photos I've been able to find...
Click to expand...
Right off the battery. Either to the RV fuse box or some other distribution block.

--Also I accidentally reported your post instead of replying to it. Sorry about that ?
 
beckkl said:
Right off the battery. Either to the RV fuse box or some other distribution block.

--Also I accidentally reported your post instead of replying to it. Sorry about that ?
Click to expand...
No worries ?

So you just run directly from the battery to a fuse box and set it up like any of the other systems patterned here?
 
Anyone who has an 812 or 1012 please report back what the fan sizes are. Thanks!
 
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