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Overloading SMA Sunny Island Inverters, Off Grid 

DavidPoz
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Fantastic results! These Sunny Island inverters from SMA are amazing. The model is SI6048-US-10 and they are in a pair for 120/240 volt split phase. Each inverter outputs 120v single phase. And they communicate with each other to stay a perfect 180° out from the other one. This means 240v appliances will also work. I ran them up during a full load test. The goal was to see if they would handle outputting the claimed watts in the manual.
Welcome to my garage. I'm building a solar off grid system for my home and workshop. This will (hopefully) be able to power my home during blackouts, and grid-down situations. But, it also is a way to save on the electricity bill.
The rated output per inverter is:
5,750w continuous.
7,000w for 30 min.
8,400w for 1 min.
11,000w for 3 seconds.
I purchased these inverters through Ebay: rb.gy/loih7c
Thanks for checking out the video. If you would like to help support the channel please go to Patreon. / davidpoz
Disclaimer:
My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.

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17 сен 2020

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Комментарии : 340   
@lan2me
@lan2me 3 года назад
I have never seen anyone get so exited to overload his equipments like you are.... 😂 Thanks for sharing.
@robinyu7264
@robinyu7264 3 года назад
yah he is
@patrickchen623
@patrickchen623 9 месяцев назад
3 years later, this video is still an amazing display of SMA
@rickraesz
@rickraesz 3 года назад
Excellent test David. I have purchased two of these for my cabin in Colorado and I can't wait to get the hooked up and running. Keep up the great work!
3 года назад
Great demonstration David. I also tried to overload my single SI 6.0 H. Had a hard time but finally reached the 11 kW with one SI 6.0 H. Seeing it go into temperature derating and reducing output power is quite spectacular ;-)
@frankasling7901
@frankasling7901 3 года назад
That’s incredible !! Nice work David 👍
@Dudleymiddleton
@Dudleymiddleton 3 года назад
8:34 Noooo waaay! lol It's great to see such enthusiasm! Hope you all staying safe man!
@KaillehAha
@KaillehAha 3 года назад
Congrats. Was very exciting to see it work so well and your excitement was great. Loved it.
@movax20h
@movax20h 3 года назад
When you have so well build inverter, and the entire chassis is a giant heat sink, and there are no fans, you know there is a lot of thermal headroom and overload capacity for considerable time. Love the fanless design. No dust inside, no fan to fail, just works. As long as it is in the shade, and not in direct sun, it would work super long. Sunny produces very well designed and manufactured inverters. Thanks for the video.
@DJMT-Africa
@DJMT-Africa 3 года назад
The Sunny Islands have fans. The Sunny Boys (AV-41) don't.
@mmahgoub
@mmahgoub 3 года назад
I bought 3 of those 3 months ago and on the final phase of the installation, you got me pumped up lol
@hippie-io7225
@hippie-io7225 3 года назад
Congratulations!! This is a big milestone. Good on' ya'
@muneeshsingh9706
@muneeshsingh9706 3 года назад
Lovely to see you happy and jumping stay blessed. Nice video.
@dan-ignacekafwimbi6551
@dan-ignacekafwimbi6551 3 года назад
I love the way to get amazed when your conducting a technical check for a given feature. Really nice brother! !!
@justicelee26
@justicelee26 3 года назад
I love videos like this. I’m a nerd for off grid electricity. Thanks for sharing.
@Still.In.Saigon
@Still.In.Saigon 3 года назад
Love your enthusiasm! Got me rooting for you! Thanks for sharing
@royamberg9177
@royamberg9177 3 года назад
That's how thing are supposed to work. Good quality equipment does what it's rated for
@japguns1022
@japguns1022 Год назад
Im glad to see how excited you were to test these .. i have 2 of the same ones running my cabin, garage, and barn on my ranch for the past 2 years now. I live 100% off grid with them running 24/7. The most ove had mine were up to 11kw.. that had me scared for a while. They didnt care one bit though. During the summer they handle my central air in my cabin and by RV at the same time without even thinking about it. They have shut down on me in the heat of the summer when im running the ac and the electric stove and the electric hot water heater kick on.. but in fairness it was over 130°F in the power room of my garage.
@carsonc1272
@carsonc1272 3 года назад
Thanks for the videos. I have the same setup but it isn't installed yet so these videos are really valuable to me.
@crimpdaddy3559
@crimpdaddy3559 3 года назад
I love the enthusiasm dude. Keep it up 👍
@robsteve7043
@robsteve7043 3 года назад
I love your enthusiasm, keep up the good work.
@Raymonkey77
@Raymonkey77 3 года назад
I'm so far behind the learning curve with lithium ion batteries and inverter technology. I have two inverters, both are the "powerdrive" brand name. They are fairly simple and have an android app for monitoring load %, temp, input and output voltage monitored by the app via Bluetooth. 1000 watt and 2000 watt. I've thought about finding the clock circuit and see if it's possible to do some wiring and soldering to investigate if I could operate them together for a total of 3000 watt or put them in an opposite direction for the oscillator to get a full phase at 230v at 1000 watts, the size of the smaller of the two inverters. I'm disabled so I can't buy much because of my extremely limited income. I can say I really like these videos and I always learn something from each one. I hope you continue to make them so I can continue to watch them and learn. Thank you so much for taking the time to make these videos.
@kennethalmond8922
@kennethalmond8922 3 года назад
It IS FUN!!! to build a system that can deliver real, whole house power and to watch you get there.
@joepace316
@joepace316 3 года назад
Great video, it is wonderful seeing someone living my dream.
@BenBuildsDIY
@BenBuildsDIY 3 года назад
Awesome stuff, thanks David!
@mikelyon7748
@mikelyon7748 3 года назад
That is impressive, great test
@martink9785
@martink9785 3 года назад
THIS is why I'm subscribed to you 😁 great video thank you
@rewatergy1597
@rewatergy1597 3 года назад
Thanks for sharing David
@onegreenev
@onegreenev 3 года назад
Never had much luck with SMA inverters for our solar except one. Had 4 SMA failures for our main solar system on our home. Good job. No need for so much excitement. Glad to see they did not blow but that did put a strain on them. Im quite sure the batteries did just fine. LiFePO4 cells are good batteries.
@stevensaxon8888
@stevensaxon8888 3 года назад
I need help getting started on my off grid solar & battery bank systems. Who do I contact?
@calvinhobbes7373
@calvinhobbes7373 2 года назад
Ours are great. 1st one lasted 13 years and it was replaced with a 2nd one and has been running 8 yrs and counting. 3rd one had a bad relay after a year and got a free replacement.
@arnaudbrice4156
@arnaudbrice4156 3 года назад
Thanks for sharing those experiences with us David, SMA's inverters are great....I wish you could some a day have a test on Mass Sine (Mastervolt) 's brand inverters....I found them so expensive on the market. Please!
@GoingOffGrid101
@GoingOffGrid101 3 года назад
those are nice inverters as well, thanks for the entertainment.
@BillyBob-fd5ht
@BillyBob-fd5ht 3 года назад
Been watching you had the same setup bought the BYD and SMA last fall been waiting for you to run it before I run mine:-) good job, I did lose interest in the project. now I can finish it.. Thanks
@ricardobernardo2603
@ricardobernardo2603 3 года назад
Thanks for sharing
@gordosimmins2727
@gordosimmins2727 3 года назад
Watching you jump around with glee really made my day!🤣
@toddbrock239
@toddbrock239 3 года назад
That was awesome thank you for the video
@DJMT-Africa
@DJMT-Africa 3 года назад
Well done! Love it!
@davidkinuthia1052
@davidkinuthia1052 3 года назад
Those inveters are monsters 14kva that is serious powers ....good works man
@kylebacher8074
@kylebacher8074 3 года назад
Man wish the guy didn't flake on me on those sunny island inverter I messaged you about. But I just got in the growatt 12k this week i messaged you about. Won't be able to hookup and use until we relocate as florida house hasn't sold yet. Only have to get batteries, racking material for panels and some more wiring for length of run after we get there. So excited that was great video
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I did look at the growatt you linked to. I'm glad it's a low frequency model.
@markjob6354
@markjob6354 3 года назад
*Excellent Performance ! I've been waiting a long time to see how these inverters will run your entire property ! Looks like a grand success. I wonder how long those huge batteries will run your house for ?*
@JimmyLLL
@JimmyLLL 3 года назад
I have the older model 24v 3.3kw Sunny Inland inverter. It has been powering our house entirely for almost 14 years with no issues at all. The only negative is their rating degrades at 40 degrees and in Australia its fairly common to get 40 degree days in summer, especially inside the inverter room. You should have a look at the Australian made Selectronics SpPro inverter range. Next step up from SMA. A little expensive but quality and very functional.
@greenfrog58
@greenfrog58 3 года назад
Fun video! Great inverter
@proffandy4all
@proffandy4all 3 года назад
You are really awesome man 👍🏻👍🏻
@jimyeats
@jimyeats 3 года назад
The fact that you had to work to reach 7-8 watts by running your stove, AC in both buildings, and all your lights reassures me that a 8000kw inverter would probably be sufficient for a small home that is very energy conscious and running more propane appliances. Thanks for the test.
@williamh.2982
@williamh.2982 3 года назад
That was great reaction.. I don't know much about solar but they kick butt..
@NoelBarlau
@NoelBarlau 3 года назад
Great to see you get so excited about it! Pretty neat little units there. I should do the same thing with my 3x LV5048 MPPSolar units. The only reason I went with such a huge amount of power is we have a Nissan Leaf, and I needed 7kw capacity just for the charger on it alone. Also, the fans kick on with almost no load at all, and at max power it'll sound like a wind tunnel. Might be fun to see... I'm currently testing two Electrodacus SMBS0's on a 48v battery bank with 8s nodes per SBMS0. So far it's working very well, but I do wish Dacian would break down and produce a 16s solution since the two halves will need to be top balanced periodically with this split method.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Can you please send me a link if you make a video about the two working on one 48v battery? I'd love to see it.
@NoelBarlau
@NoelBarlau 3 года назад
@@DavidPozEnergy You bet. I have the footage taken already and have to edit it - poorly. Will let you know when it's uploaded and available.
@TheKiloG69
@TheKiloG69 3 года назад
Very Impressive!
@nstufflebeam
@nstufflebeam 3 года назад
Great Job. Way to go.
@franztinevlog9728
@franztinevlog9728 3 года назад
very nice inverter
@easylawncare
@easylawncare 3 года назад
Good luck and keep going and going Watch the batts though lolz I ran mine at 23 plus kw and easy 10 min. Fans wide open for a min though but keep going.
@todkapuz
@todkapuz 3 года назад
hope someday to live somewhere that I can put up panels.... but yeah that seems like its a great setup.
@felaxchow207
@felaxchow207 3 года назад
Gotta love the empowered feeling of being able "trip over" the extension cord with the utility company and being your own utility company as if everything is normal even when pushing it to its limits. I would've gone with the SMA platform, but they don't offer a 120/240 volt split phase single unit version out of the gate and allowing you to add from there. However its design allows that single unit to be configured as a standalone 120 volt, two units for 120/240 volt split phase, or three units for 120/208 volt three phase. If you can get them in a pair at a good price is definitely worth it.
@ambersmith6517
@ambersmith6517 3 года назад
Genetry solar is getting ready to launch it own line of inverters they have wi fi and you can hook them together for 3 phase or for more power and redundancy
@homestyleoff-grid564
@homestyleoff-grid564 3 года назад
Amazing test, I wonder how much current was flowing from the batteries if you could show that as well to check efficiency.
@DJMT-Africa
@DJMT-Africa 3 года назад
Rated output current for the Sunny Island 6.0 and 8.0 is 20A, with a peak of 120A for a short while. The limit would, then, be the battery.
@harrisidiens564
@harrisidiens564 3 года назад
So awesome 👍 it will be super rare you would typically use that much load all at once either. One of your videos you should go off grid for a week document each day, talk about how much Sun kw input and load used. Also there is a guy in Hawaii that does alot of this stuff he uses heat pump dryer's, heat pump hot water and induction cook top those things would substantially reduce your load if in the future you wanted to be totally off electric bills. Great job was waiting along time for this particular video your enthusiasm for this stuff is contagious
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I've been running off grid since April. I didn't realize I was supposed to video it each day. LOL
@harrisidiens564
@harrisidiens564 3 года назад
@@DavidPozEnergy cool off grid since April, so awesome I'm going to have to start something soon think I might go MPP solar inverter
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I don't have anything against MPP Solar. But, keep in mind, they are high frequency. So they don't do surges well, and can't over-load. They just shut down. I did a video on one of the models: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FUaDmVDcYks.html
@harrisidiens564
@harrisidiens564 3 года назад
Think I would add a soft start or capacitor to help with the power factor on those motor loads (skill saw, chop saw, well pump ect.) The kvar on those loads are not the best for most inverters. A capacitor should help with the power factor and the power surge. Should be fine once added. Here you asked for a clip awhile ago on the dune race 24v conversion put some under glow and a front light as well. Video is a little Shakey ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hbX3NBXOCd4.html
@imransaeed6847
@imransaeed6847 3 года назад
Good Working
@JRP3
@JRP3 3 года назад
Never seen anyone so excited to clean their oven 😁
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Ha. My wife wanted me to do it. So, of course I've got to do it on a sunny day.
@AveRage_Joe
@AveRage_Joe 3 года назад
AWESOME!!!
@hassansaeed8903
@hassansaeed8903 3 года назад
Outstanding video love you
@briandavis9975
@briandavis9975 3 года назад
That was cool David I've never seen someone so excited to see their system over preform congratulations brother Where did you get your inverters?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Ebay. I left a link in the description, but just search for SMA 6000, or SI6048.
@HValdez-wl2im
@HValdez-wl2im 3 месяца назад
Thank you sir much appreciated
@matthiasmarks812
@matthiasmarks812 2 года назад
Congrats! Endurance Made in germany… :-). Amazing how lucky you are,…. It was a pretty cool invertersystem. Endurance over the top was One of the goals to develop,…. I Hope you will have very Long happiness with this Stuff
@yarived
@yarived 3 года назад
Brilliant!! Great test. Should have probably mentioned at the start that you're network is 3phase. I wonder how they perform the same test when connected as 1p but I assume some of your appliances are 3p supply. Great video. Thanks!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I have 2 phases, each is 120v. They are 180° out from each other. So when you measure from L1 to L2 you get 240v. This is often called 120/240 split phase. It's common in North America.
@lnxpro
@lnxpro 3 года назад
1.21 gigawatts! great scott! lol. over-excitement galore in this video. lol.
@DavidSmith-dm8ew
@DavidSmith-dm8ew 3 года назад
Time to purchase a flux capacitor and go back in time! lol
@SylwerDragon
@SylwerDragon 3 года назад
for sure they do..they are good inverters..and pretty expensive ones also :)
@sams5803
@sams5803 3 года назад
Put em to the test David you are awesome. The adult version of kid in a candy store lol.
@davidhyman4541
@davidhyman4541 3 года назад
Woot! A load test on the new system!!!!
@fisherus
@fisherus 3 года назад
Success is so exuberating when you finally see all your hard efforts and work come together. I wonder how long it would take to deplete your tower of power with this amount of draw? Do you also have your LTO battery bank system running on a different inverter connected to other AC lines in your house or garage or are we going to be seeing another video forthcoming? As always, fantastic job with fantastic results, David !
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Hi Craig, I tested the capacity of my battery tower to 24kwh. So I could run 12kw loads for 2 hours. LOL, it doesn't seem very long. But usually can last me 2 days because I'm never running everything at once.
@fisherus
@fisherus 3 года назад
@@DavidPozEnergy Your oven's clean so you're good there for another month. I imagine that if your power grid goes down you'll ration your power to help maximize the amount of time you have it available. Still am wondering about the LTO batteries?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I have two different LTO batteries. The most recent one was a 12v (6s). I drove around with it in my car for a week, and was constantly checking it's temperature and voltage. I ended up taking it out because if I idled there was not enough air movement to keep it cool. I have a second LTO battery that is wired in 48v. I meant to hang it on the wall, but then got caught up in other projects, so unfortunately, it's sitting under my work bench.
@DavidGetchel
@DavidGetchel 3 года назад
I love how you were running out of things to turn on! Trying your saw maybe could have tripped it...
@Dutch_off_grid_homesteading
@Dutch_off_grid_homesteading 3 года назад
heya nice max test just great
@edwardbyrd7667
@edwardbyrd7667 3 года назад
My wife says you had way too much fun making this video
@DavidPozEnergy
@DavidPozEnergy 3 года назад
LOL
@BillPorterBot
@BillPorterBot 3 года назад
Mine said the same...
@sasukekhan8953
@sasukekhan8953 3 года назад
@@DavidPozEnergy what is your battery capacity?
@phmagpantay1066
@phmagpantay1066 3 года назад
mine said its pure obscession
@LithiumSolar
@LithiumSolar 3 года назад
Great test, it's exciting to see how far you can push things. It seems these take overloading better than AIMS LF do. No surprise there of course though considering they're SMAs. I'd be curious to see thermal images if you have a thermal cam.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I don't own a thermal camera. Can't afford it this year, maybe next.
@HCHANRN
@HCHANRN 2 года назад
i bought two for total 3k. can't wait to hook them up.
@jessea1849
@jessea1849 2 года назад
can you share where you found a pair for 3k?
@charlesrichards5389
@charlesrichards5389 3 года назад
That is amazing! Any chance you could put an O-scope on the output while it's overloaded?
@trevortrevortsr2
@trevortrevortsr2 3 года назад
David - how many inverters have you had? it seems like loads - always a pleasure to watch you pix - looking forward to seeing the golf cart finished - I see Wills done one too!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I've had a lot of inverters over the years. They all seem to fall short in something. I'm very pleased with these so far.
@edwardbyrd7667
@edwardbyrd7667 3 года назад
Trev S Since you mentioned the golf carts, I left a message on Will’s page, but I’ll leave one here too. I think David and will should have a golf cart race for charity. I know I would love the opportunity to route a donation through you. My money would be on you. While he is extremely knowledgeable, and I’m really happy for his success, I cannot back the little California kid over a true Yank. That just doesn’t sit right with me
@MaxMax-dq1lu
@MaxMax-dq1lu 3 года назад
@@DavidPozEnergy Hey David I have a quick question 4 u... Looking @ the inside of these inverters... I can't see anything 2 explain their 63kg weight... I was expecting 2 see a large transformer... r these LF or HF inverters..? Also could we get some close ups of the what's inside... Cheers.
@lanfordmims5080
@lanfordmims5080 3 года назад
David when you turned your air conditioning on was the house unit a central AC? If so. The Sunny Island inverters were able to handle the start-up surge? Great video! You always keep things interesting:)!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
My personal house is a Mr Cool mini-split. But I have a friend with these inverters and a 5-ton whole house AC. These can handle the surge just fine.
@ugetridofit
@ugetridofit 3 года назад
Thanks for sharing, but I would have really liked to know what was the amp draw on the batteries during that max load.
@wilhelmloewen8455
@wilhelmloewen8455 3 года назад
Ohly cow😱😱 that's awesome bro!! How much do they cost?
@yankey4
@yankey4 3 года назад
So cool man thanks for sharing. this was so fun!! God Bless.
@mark_osborne
@mark_osborne 3 года назад
Really enjoyed this video David .... was doing a little math, you were pulling about 260 amps off those batteries when you hit 14K watts..lol.. Nice !
@defjamsgreen
@defjamsgreen 3 года назад
THOSE INVERTERS ARE INCREDIBLY AWSOME . MY AIMS DON'T COME CLOSE BUT I'VE GOT IT TO RUN THE WHOLE HOUSE AND FINALLY THE " CENTRAL AC " IF YOU WOULD LIKE TO SEE THE VIDEO AND LEAVE A COMMENT , CHECK IT OUT . BUT THOSE SUNNY ISLANDS ARE THE WAY TO GO . MAY THE SOLAR BE WITH YOU .
@realoldgeekster
@realoldgeekster 3 года назад
Great enthusiasm David! Great Video. I have been waiting for this video. You may remember I purchased 2 of these also. I wanted to wait for you to burn yours in first. Thanks for this video!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Are yours up and running?
@realoldgeekster
@realoldgeekster 3 года назад
Mine are still in the box's. Have been busy on other things lately. But WOW you got me FIRED UP for sure. I will have to get the details from you later on what you have learned along the way. WOW I NEED TO MOUNT THOSE BABIES SOON....
@peterking1134
@peterking1134 3 года назад
It great to see the SMAs!!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Thanks. Been running the whole house on them since April.
@adon8672
@adon8672 3 года назад
Interesting Test David. I don't expect anything less from a brand as reputable as SMA though. I'll add that with this amount of off-grid power you definitely need to consider getting an electric car.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I agree. Almost had the VW going, but now I need a new controller for it.
@SuperVstech
@SuperVstech 3 года назад
You mention you use electric heat for the home, thus the solar is not able to get you off grid through the winter. You also have solar thermal making hot water... you might look into using this to heat the house instead of resistive heat... of course, inverter drive heat pumps output heat far more efficiently in much colder temps than conventional heat pumps, so that is another way to supplement the heating off grid. Keep us posted!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Right now my plan is to add another 5kw of solar, and wire it as a dump load to heat the house in winter. I have the panels and parts, just have to get it done before the snow flies.
@GoingOffGrid101
@GoingOffGrid101 3 года назад
nice! I overheated my 2 magnasines at 11000w continues but never overloaded them, but I have a fix for it :D
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Thanks. I enjoy your videos too.
@ashforkdan
@ashforkdan 2 года назад
Just like a kid at Christmas. 😄
@zekeboz5533
@zekeboz5533 3 года назад
That’s great Dave! Wondering how your batteries fared? What kind of kilowatts did you go through for that test?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
I made it. I chose a sunny day for the test, so I had 4kw of solar coming in. My battery bank is 24kwh. I ran them for 2 hours at 12kw load (24kwh) and then shut off the extra stuff to make sure the oven could finish it's last hour of cleaning. Never overheated.
@matija3791
@matija3791 3 года назад
@@DavidPozEnergy Ist the BMS of the battery connected to the inverter?
@stevensaxon8888
@stevensaxon8888 3 года назад
@@DavidPozEnergy I need help getting started with my off grid battery bank & solar panels systems. Could I hire you to help me? If not who Could show me
@MarkRose1337
@MarkRose1337 3 года назад
Impressive! How long would your batteries hold up under that load?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
My battery bank that's connected has tested to 24kwh usable. So, about 2 hours under that load. But, of course I was just doing a test. I ran it heavy like this for over an hour (close to 2) but then shut off the heaters. It was also sunny while running this test, so we had some solar energy coming in.
@Pendrige
@Pendrige 3 года назад
Will you do a tear down of the inverter at one point? I am curious to see how they managed the cooling considering how silent it is. All i know is that it acutally has two fans but thats just because you said it in the installation video 😂
@DJMT-Africa
@DJMT-Africa 3 года назад
Yes, the Sunny Island does have a cooling fan. I guess it works well. It designed to deliver 5.43kW at 45-degrees C, continuously. It's unlikely any sealed off room will run at that temperature, so it's very well built.
@SolarEngineering
@SolarEngineering 3 года назад
It was about 260 Amps from battery bank, wow!
@redsquirrelftw
@redsquirrelftw 3 года назад
Wow that is impressive for sure, hard to get inverters that can actually output their advertised rating these days. Been toying with the idea of adding a transfer switch myself so I can run the house off the shed solar. I only have 400w of solar but if I get a big enough inverter I can at least run a couple big loads for a short time on battery and let solar catch up. In a power outage situation I could at least turn off most breakers and power the important stuff in cycles. I still need to figure out how to keep the snow off the panels though, minute we get wet snow or freezing rain the panels are out of commission for rest of the year since it creates a hard crust on them.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Where do you live? My panels will sometimes get covered up during storms, but usually once the sun hits them (still below freezing air temp) the snow slides off. I'm in MA
@redsquirrelftw
@redsquirrelftw 3 года назад
@@DavidPozEnergy In in northern Ontario. Basically once there is snow it stays for the year. I can brush off the normal snow but once we get the weird stuff the brush just kind of glides on top. I want to figure out a way to change the incline but that will require more hardware, right now they are flush parallel to roof using unistrut. I have some videos of the install.
@offgridbydesign3826
@offgridbydesign3826 3 года назад
Great project!! Couple of questions: Is that a hundred anp breaker you are using for the interlock, I thought you tied each inverter to each leg in your service panel or are the SMAs in a parallel configuration?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Each inverter is powering it's own leg. Each is 120v. They communicate to keep 180° sine wave apart, which gives you the 240v. I hope that helps.
@offgridbydesign3826
@offgridbydesign3826 3 года назад
@@DavidPozEnergy Yes it does, thanks. I have Sol-Ark 8k and a Fronius Primo 3.8k string inverter. I'm looking at adding another inverter to allow me run the entire house.
@frederiklunden744
@frederiklunden744 3 года назад
Hey David, I was wondering how your water tank in your crawl space is doing? Have you seen any significant savings from it? Would love to see a video where you give us a conclusion on this exciting project!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
It just sits down there. I never have to do anything with it. I've checked the water every now and then for the right level, but never had to add any water. I don't have a meter just on my electric booster tank, so I don't know how much it runs long-term. I'd love to add a whole house meter that allows me to see things like this. My best guess based on some of my testing, maybe 2000kwh per year in savings. But it's hard to say because I also grew the family and have 2 kids now. More bath and laundry.
@frederiklunden744
@frederiklunden744 3 года назад
@@DavidPozEnergy I just simply loved the narrative of inexpensive storage in hot water. I thought the entire idea was extremely well thought out. I'm just gonna talk at the top of my head, but if you ever put a thermocouple in the water and log the data. You could compare with the price of heating the water using electricity from the grid.
@ai4px
@ai4px 3 года назад
BTW, I checked my sunny islands at idle and two of them draw 1.2a together.... that’s 64 watts, or 1.5kwh per day. Heck I had an aims inverter that drew 52wh, 1.25kwh per day and it was only 4kw!! These sunny islands are hella inverters.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Yes, they are pretty awesome. Very efficient.
@witness1449
@witness1449 3 года назад
Hey David, really enjoyed the test since I was interested in using the SMA 7kw on a system I'm trying to design and expand upon as fund's are available. It's pretty obvious your impressed with the SMAs. after that test. I'm new to solar but have researched everything possible to get at least a small system set up for emergency back up. I'm starting with 6, 320 watt panels on a adjustable ground array, 4, 210 ah North Star carbon lead batteries, and the 7.7 kw SMA inverter. Not much to start but it's all I can afford right now since I'm retired and on a fixed income. Any suggestions for EMP, CME, an LIGHTING proofing a system. I like the Sol-Ark inverters but just too expensive. The SMAs seem to be a good dollar value for the quality of the inverter. I would appreciate any input you have to share. Have watched most of your videos and have enjoyed the content and useful information. Thanks Bob
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Hi Bob, I use some surge protection devices (SPD) from Midnite Solar. They come in different voltages so I have some out at the array, and another in my circuit breaker box, and another on the battery. www.altestore.com/store/enclosures-electrical-safety/lightning-protection/midnite-solar-surge-protection-device-300vdc-and-120240-vac-p9042/ But, I've spent more than the Sol-Ark costs. Parts, wiring, charge controllers all add up. The Sol-Ark is actually less expensive than a comparable system pieced together. Now if you only need a 2kw inverter or something, then yes, you can make it less expensive. But if you want a 8kw inverter, and charge controllers, etc, then the Sol-Ark is the cheapest way to go.
@witness1449
@witness1449 3 года назад
@@DavidPozEnergy Thanks for the response, and helpful links. I do like the Sol-Ark inverters. I'm finding out that with all my research even a small system is very expensive. I just don't know what I will end up with but I think I will have to be patient and invest more than I originally thought. Thanks for your insight and helpful videos.
@GeertGoossens
@GeertGoossens 3 года назад
thats German engineering for you! I also have an SMA inverter because I trust it more than any other brand out there...
@calvinhobbes7373
@calvinhobbes7373 2 года назад
here here. If you use good quality components, you get good products. all it takes is 1 poor quality capacitor. Our first sunny boy lasted 13 years in Calif sun.
@emilemunoz9692
@emilemunoz9692 2 года назад
Hi David, why haven't you used SMA sunny boy, to connect them with the SMA sunny island, I think it would be a very good idea, and so you can make a lot of video, thank you very much.
@yarived
@yarived 3 года назад
Would be great if you could share what is the draw on each phase and how the SI deal with unbalanced loads. I think that the inverter keeps phases on balance which can lead to losses in off grid applications. Thoughts?
@DavidPozEnergy
@DavidPozEnergy 3 года назад
These two inverters can not share load from one phase to the other. It is possible to overload one phase while the other still has room.
@alexanderbondarchuk8798
@alexanderbondarchuk8798 3 года назад
Are they split phase? Do you recommend a specific split phase inverter? Love the videos by the way!
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Each inverter is single phase, 120v. But when tied together like this you can program them to become split-phase and share the neutral. This setup runs my 120v and 240v appliances. The best split-phase inverter in one package I know of is the Sol-Ark 12k.
@raybuford6252
@raybuford6252 3 года назад
What would happen if you did not reprogram them to be split phase but still shared the neutral?? Would you still be able to power 120v outlets on both legs?
@calvinhobbes7373
@calvinhobbes7373 2 года назад
@@raybuford6252 Yes. You can do a 1‑Phase Parallel System, 120 Vac, up to 18 kW: Maximum 3 Sunny Islands of the types SI 4548‑US‑10/5048U/6048‑US‑10. You can go up to 12 SI and 100kw wit SMA multicluster box.
@kchiem
@kchiem 3 года назад
I know you were excited, but careful with that finger. Pointing behind you at uncovered inverters could have ended badly.
@pete3897
@pete3897 3 года назад
Excellent advice! They rally should never have been left uncovered while running live (it sets a terrible example for the young ones), let alone while in an overload condition (what if they go pop? ouch into the side of your head), and it's also quite possibly causing the devices' thermal engineering to be less effective - maybe they could have gone even further with the covers on :)
@robinyu7264
@robinyu7264 3 года назад
he is crazy rich guy
@calvinhobbes7373
@calvinhobbes7373 2 года назад
@@pete3897 I would probably not call it an "overload condition". They are made for that. They can do: AC power at 25 °C for 30 min / 1 min / 3 s 5300 W / 8400 W / 11000 W 7000 W / 8400 W / 11000 W Of course you have to be careful. 5750 is max CONTINUOUS LOAD at 25C! At 40C you can only do 5750w load for 3 hours.
@renewableenergy8232
@renewableenergy8232 3 года назад
👍
@caked3953
@caked3953 3 года назад
Does the inverter handle compensstion?
@marcoa.rosado4724
@marcoa.rosado4724 3 года назад
That's very good David, somewhat scary. Do you you how many amps you were pulling from the batteries.
@DavidPozEnergy
@DavidPozEnergy 3 года назад
Somewhere around 260-270 amps. My shunt is still not staying calibrated correctly and I'll have to change it out. By circuit breaker is 300 amps and didn't trip.
@marcoa.rosado4724
@marcoa.rosado4724 3 года назад
@@DavidPozEnergyWow, that's a lot of Amps, Well excellent test, Keep up the videos and I will keep watching. Stay safe and healthy.
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