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Small Cabin Forum / Off-Grid Living / NEWS: New Midnite Solar DIY Series - SCC's & Inverters (great $ too)
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Steve_S
Member
# Posted: 14 Jun 2021 11:18 - Edited by: Steve_S
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Good Day Folks,

I thought I should pop in this update for anyone interested in Midnite Solar products. They have been working on Inverter/Chargers and other products and these new items are just coming available now and some of it is Game Changing for many applications.

New DIY Series Solar Charge Controller: MNMPPT60DIY $433.00 USD.

With 60A of charging capability and up to 150VDC input, the new MNMPPT60DIY is a powerful and flexible charge controller perfect for any 12V, 24V, or 48V battery system.

FEATURES:
True Maximum Power Point Tracking "MPPT"
LCD display standard
User friendly buttons and prompts
Optional Blue Tooth for cell phone connectivity
12/24/36/48V auto detection
Lithium compatible
Up to 99% efficient
20-30% more efficient than PWM style controllers
Over Current Protection, allows for more PV than the unit can process
Reverse current protection for night, prevents batteries from back feeding the solar modules
2 year warranty by MidNite directly

http://www.midnitesolar.com/products.php?menuItem=products&productCat_ID=56&productCa tName=Charge%20Controllers%20-%20DIY%20Series

New DIY Series Inverters:

MN3548DIY
The MN3548DIY is a 3,500W, 48VDC inverter-charger with a built-in MPPT charge controller. $1,146.00

MN3024DIY Inverter/Charger
The MN3024DIY is a 3,000W, 24VDC inverter-charger that includes a built-in MPPT charge controller. $785.00

http://www.midnitesolar.com/products.php?menuItem=products&productCat_ID=57&productCa tName=In%20verters%20-%20DIY%20Series

Hope it helps anyone shopping for Quality Components at Respectable prices.

ICC
Member
# Posted: 14 Jun 2021 14:30
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paulz
Member
# Posted: 14 Jun 2021 23:06
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Yum. If I lose another SCC this will be the ticket. Thanks Steve.

gcrank1
Member
# Posted: 15 Jun 2021 13:41
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Iffn I was starting over.....
Maybe I should sell my aging (10ish yr old) 12v system and do a new one! Hmmm

Steve_S
Member
# Posted: 16 Jun 2021 05:19
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I just watched an unboxing video by Ryan (Midnite guy) and while it isn't much to watch... there was a DING in it... Their DIY Inverters are HF High Frequency which are not great with motors (Fridge compressor, AC, Well Pump). A "DOH" moment for Midnite and it explains why so cheap.

Inversion Methods Explained: High Frequency vs Low Frequency | Magnum Dimensions

gcrank1
Member
# Posted: 16 Jun 2021 11:02
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Sure glad we got you watching out for us

Steve_S
Member
# Posted: 16 Jun 2021 11:22
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LOL, "watching out" Ohhh I dunno about that, it's just information being shared. The timing sucks TBH, I'm just finalizing the Solar Config to "complete" that entire long-haul project.

Next up Toolshed, Front Porch and then detailing so this place can be sold next year, as Maggie has decided she does not want to keep it after I pass away. No more big projects or things like that in my future. Can't complain, they gave to 5-7 and I'm tickling year 8 now but damn its gotten hard to do anything at all. Would really be nice if someone who can genuinely appreciate this place, had hoped that one of my Daughter's would buy it "at cost" but that's not very likely at all anymore.

ICC
Member
# Posted: 16 Jun 2021 11:46
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HF is not all bad. One should just be aware of what they have. It is still a Midnite product. They have never sold junk. They use quality components. I am sure that if one buys a high frequency inverter from them it is higher quality than many or most of the other brands on the market.

SCSJeff
Member
# Posted: 16 Jun 2021 15:06 - Edited by: SCSJeff
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I watched the same video, read the comments, and downloaded the manual and the settings look very similar to MPP Solar, GroWatt, etc.

Since it is physically made in China, I bet they just rebranded the Voltronic AIO...

That being said, I would hope their support is better and can provide replacement parts if necessary

Steve_S
Member
# Posted: 16 Jun 2021 17:35
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I hit up Ryan and a couple of others to get more 'meat'. They are Chinese production by a Quality manufacturer to Midnite Specs. Like more advanced High End HF & Hybrid Inverters, these are not finickity like the cheaper ones, and at this price you can't really go wrong.

While I am already setup, I would seriously consider these if I was building today, except for one gotcha, I would have to get a 4000W model which they don't have at this time. My existing Midnite gear, while dated, is Rock Solid & Tough as Nails.

SCSJeff
Member
# Posted: 16 Jun 2021 18:46
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I wish it had a bit longer warranty... Only 1 year. Comparable Growatt is 2 years at least (although about $200 more expensive)

maddiecycle
Member
# Posted: 20 Jun 2021 10:52
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If surge capacity for motors is the concern about an HF, what about a using $20 start capacitor?

ICC
Member
# Posted: 20 Jun 2021 13:19
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Quoting: maddiecycle
start capacitor?



In some cases, one can help, but they are not magic, not a solution for all problems. They are a band-aid, IMO, to be tried if one already has some equipment and then has a new need to start a motor on something.

qbodsyt
Member
# Posted: 21 Jun 2021 10:49
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Steve, I can't believe you're selling! I wish I could buy your place, I love the area and the intelligence of your design!

Steve_S
Member
# Posted: 21 Jun 2021 12:17
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Quoting: qbodsyt

Steve, I can't believe you're selling! I wish I could buy your place, I love the area and the intelligence of your design!

Not much choice, Maggie does not want to keep it Kids can't be depended upon to take it over, even at "cost", no jobs, no money. Most likely will be listed early next fall after all the detailing is done. This was my Bucket List project which I hoped that either Maggie or the kids would want to keep. I was mistaken.

FishHog
Member
# Posted: 21 Jun 2021 15:35
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well that really sucks Steve, but I'm glad you had the time you did to enjoy it and have the adventures it provided you.

Not much to say other than I'm sorry you and your family are going through this.

smokedvw
Member
# Posted: 6 Jul 2021 12:10
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I'm thinking of buying a MN3024DIY and was just reading your HF responses.

I am new to solar but was planning on matching 2 Hanwha 425 Watt MONO panels to make 24v and 4 200-250ah 6V Costco, Trojan or Rolls batteries to make a 24V system. The all in one controller, inverter and charger (hooked to a generator) seems like a great way to go I'm just wondering if I will be missing anything?

I will start a separate thread about our needs to make sure they match what I was expecting but I did want to see if anyone has tried out the DIY yet or has any more details / thoughts on that unit?

Thank you,

Aaron

Steve_S
Member
# Posted: 6 Jul 2021 13:55
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The AIO's have come a LONG way even in the past 5 years, the new HF Hybrids are fine but not the oldstyle (used by the really cheapo's still).

We handle all sorts of this stuff at https://diysolarforum.com/index.php and there are plenty of diagrams and info on batteries & more....

I started with Lead 428AH gross that cost me around 3500 6 years ago.... Now I still have that but also 1190AH of LFP as my primary...
LFP has come down a LOT and as such, Lead makes little sense anymore. Remember you can only discharge Lead to 50% of the AH rating else your damaging them.

smokedvw
Member
# Posted: 6 Jul 2021 23:27
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@Steve_S
Yeah and with the lead I'm assuming you can set the controller to stop at 50% and then switch to the generator? Ill have to read the manual of that DIY I guess or contact midnight solar to see what they say.

I'm in Canada and have not see a drop in prices as much as you see in the US for lithium it seems.

Steve_S
Member
# Posted: 7 Jul 2021 07:48
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@smokedvw, I'm up near Algonquin Park Ontario.
I buy cells direct from a Known Good vendor who actually carries Genuine Grade-A cells with Factory test reports because they are actually properly Matched, Batched & Binned.

280AH LFP cell = $125 USD
4 = 12V, 8=24V, 16=48V.
I'm just completing my final 24V/280AH/7.16kWh pack.

Bulk 280AH cells are $92 USD (you will get between 250-275) from those cells.

ANY Inverter will have Low Volt cutoff which you can program to whatever voltage you want.

My Rolls Surette's S-550's cost me $350 ea in 2015. The replacement S6-L16-HC is $460 now.
Same Dealer: Solacity.com in Kemptville Ontario. So in CAD !

8x S6-L16 = $3,671.52 + Tax CAD. 222AH useable
8x EVE-280 Matched = $1000 USD . $1244.20 CAD 280AH useable
+ about $350 USD S&H DPP (duty/taxes fees paid) to the door.

The math says it all.

smokedvw
Member
# Posted: 7 Jul 2021 12:55
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Steve_S
Can you send direct messages on this board? If not would you be able to reach out to me via email. aaronmagi AT gmail.com

I can delete that email after.

My father in law is very into batteries and I'm sure he can build me them based on the packs and something he would enjoy.

This sounds like a great route. I had also thought of just going with a super basic system from costco (120w panel, 2 6v 220ah costco batteries) and honestly that will probably we all we need this summer while I take time to wire, put in lights, dig trenches etc for the wires.

We just had our fridge die which caused me to think lets move to solar but at the end of the day there is not a great area to setup the panels unless I built it etc and at some point I just want to enjoy the summer with our new born and toddler vs build every weekend I am at the lake.

Well I like building but my wife likes a break form me being "busy" up there all the time haha

Steve_S
Member
# Posted: 7 Jul 2021 13:49
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LOL, ICC started a thread a few days ago...

https://www.small-cabin.com/forum/3_10610_0.html

You might be interested to have a look at my "About my System" page at DIYSolarForum LINK

gcrank1
Member
# Posted: 7 Jul 2021 19:22
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Smoke, my wife hates me messing about with the solar, but she likes the lights and fans!
My currently (pun intended) abbreviated system is 4x100w 12v panels (I have 6), mppt 50a charger control and 2 old 100ish ah 12v batteries in parallel.
Thus far it has been giving us the power (admittedly light draw) we need and recharging between visits just fine. But I want MORE, lol......
Btw, I invert from 12vdc to 120vac PSW right at the bat-bank and send the ac right to the cabin. That simplified my wiring and fixtures a lot.
LED lights are a must.

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