SMA’s Highly Anticipated Micro Inverter Now Shipping

From on 08/01/2013 in Category Technology with 57 Comments

 

Solar professionals have been waiting anxiously for the release of the SMA Sunny Boy 240-US micro inverter. SMA America is proud to announce that it is now available!

The Sunny Boy 240-US offers leading efficiency, design flexibility, simplicity and module-level optimization, all backed by SMA’s unrivaled bankability and service support. It also features exclusive SMA Sunny Multigate technology, which maximizes system reliability. Watch this short video to learn more about the Sunny Boy 240-US.

Click here to find out “Where to Buy” the Sunny Boy 240-US.

 

Do you have a project to share using an SMA micro inverter? We would love to hear about it! Email us at SocialMedia@SMA-America.com.

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57 Comments

  • avatar

    Hans

    08/23/2013 at 7:28 pm

    Will the sma micros allow the sunny island to use frequency shift to throttle them back as needed?

    Reply »
    • avatar

      Melissa Womack

      08/26/2013 at 5:00 pm

      Hi Hans,

      The Sunny Boy 240-US micro inverters were not designed to work in off-grid or grid-backup systems. They will not work with the Sunny Island frequency shift power control. We would recommend a Sunny Boy string inverter for this application. The Sunny Boy 3000/4000/5000 TL-US works well with the Sunny Island. It has dual MPP inputs, as well as the Secure Power Supply. This would be a great solution for a battery backup system.

      Thanks,
      Melissa

      Reply »
    • avatar

      Gary

      06/11/2014 at 1:01 pm

      Let me also join in with my vote for allowing Sunny Island use with micro inverters. That would be a huge game changer in the industry. Micro inverters bring lots a advantages but unless they allow a battery backup option I would never consider.

      Reply »
      • avatar

        Justin Dyke

        06/11/2014 at 4:59 pm

        Hi Gary –

        Like Melissa said, Sunny Boy 240-US micro inverters weren’t designed to work in off-grid or grid-backup systems. However, using the Sunny Boy 240 system with the Sunny Island does not void the warranty of either device. Though during a grid outage or with an Off-Grid system, the use of the energy from the Micro is not optimum because the micro inverters do not have an Off-Grid or Backup parameter to efficiently manage the energy via the Sunny Island frequency shift.

        Hope this helps you,
        Justin

  • avatar

    Allie

    08/28/2013 at 1:30 pm

    I notice that the spec sheet says “max DC input” is 250 watts. Will that increase? Our primary module is a 260 and a 290. Also, when we asked an SMA guy at the SMA booth at Intersolar about the SMA Micro inverter he basically said he hated it and that Micro inverters as a whole we’re soon going to be obsolete.

    Reply »
    • avatar

      Melissa Womack

      08/30/2013 at 8:25 am

      Hi Allie,
      Thanks for the feedback about the Sunny Boy 240-US micro inverter. We are currently relaying requests to our engineering team for the next model of SMA’s micro.

      That being said, the current Sunny Boy 240-US micro inverter will produce slightly more power than the 240W under optimal conditions. A 260 module might work as long as it’s Voc is 45 or below, after researching some 260’s it appears many of them are below 40Vdc open circuit – this could actually be a good match. Proper design calculations need to be done, i.e. temperature, mounting, etc. Feel free to call our technical sales support for help with designing a system or more detailed questions: 1-888-4SMAUSA

      SMA is excited about the future of micro inverter technology and its rapid growth within the solar industry! SMA has invested resources into micro inverter technology and is dedicated to providing a quality and reliable product. I apologize for your experience in the SMA Booth at Intersolar North America – this stance is certainly not the opinion of SMA. If you would like to discuss this incident further please e-mail your contact information to SocialMedia@SMA-America.com.

      Regards,
      Melissa

      Reply »
  • avatar

    John

    09/01/2013 at 3:39 pm

    Are these new ‘micro’ inverters essentially the latest ‘plug & play’ technology?

    Reply »
    • avatar

      Melissa Womack

      09/03/2013 at 9:35 am

      Hi John,

      Micro inverters represent a simplified PV system concept. They offer several key advantages when it comes to system design and installation. So while no micro inverter is truly “plug & play,” SMA’s Sunny Boy 240-US comes close by offering pre-assembled AC plugs and connection cables, a variety of DC connector options and the elimination of a trunk cable which saves time and money.

      Best,
      Melissa

      Reply »
  • avatar

    Will Wilkin

    09/02/2013 at 8:53 pm

    How big of an array can we build using the SB240s? Is there a maximum number of microinverters that can be in a system?

    I read the Install Manual and the data sheets for the SB240 and the Multigate, but nowhere see how to wire multiple Multigates, say, a system of 84 modules and 84 SB240s, ie, 7 branches of 12. Using a subpanel just for solar circuits, it seems each of the 7 Multigates would backfeed through a 15A 2-pole breaker. But how does the data monitoring system work for multiple Multigates? Is there a daisy-chain configuration?

    Reply »
    • avatar

      Melissa Womack

      09/05/2013 at 11:00 am

      Hi Will,

      There is no limit to PV system size for the Sunny Boy 240-US micro inverters. Each Sunny Multigate can be connected to a maximum of 12 micro inverters. Each micro inverter will send data to their respective Multigate. When commissioning the system each Multigate will be registered with Sunny Portal, http://www.SunnyPortal.com, using the same username or e-mail addresses. You can easily toggle between the 12 Sunny Boy 240-US/Multigate systems.

      Up to four Sunny Multigates can be displayed on an individual PV system page. I recommend giving the Multigate pages the same name with a separate number to differentiate between them. For example, “Jones residence Array #1” and “Jones residence Array #2”. Array #1 would have 4 strings of 12 inverters displayed on a single page, on the separate page named Array #2 to see the remaining 3 strings of 12.

      For help designing a system call our Service Line at 1.877.697.6283.

      Best,
      Melissa

      Reply »
  • avatar

    Walter Freeman

    09/04/2013 at 8:21 pm

    My question is similar to the earlier question of Will Wilkin, which remained unanswered at this writing. I would phrase the question as: Can two or more “sets” of SB240s exist in one installation? Can two or more Multigates coexist on a single router?

    Reply »
    • avatar

      Melissa Womack

      09/06/2013 at 1:32 pm

      Hi Walter,

      Yes, two or more sets of Sunny Boy 240-US micro inverters can exist in one installation. Our Multigate-XT enclosure is available in configurations that house one, two, three or four Multigate-US units for systems up to 48 modules (12 modules x 4 Multigate-US). The Multigate-XT2,3 and 4 models offer an integrated Ethernet switch for simple networking to a single router.

      Regards,
      Melissa

      Reply »
  • avatar

    Dick Thompson

    09/08/2013 at 11:59 am

    Is there an “on-line” example of the per modual data display that an owner would see?
    Thanks

    Reply »
    • avatar

      Melissa Womack

      09/09/2013 at 3:19 pm

      Hello Dick,

      Thanks for asking, we are currently working on a detailed post about the great features offered on our free module level monitoring. Check back back on the blog soon!

      Best,
      Melissa

      Reply »
  • avatar

    Ryan

    09/23/2013 at 1:42 pm

    I am from an island in the Caribbean and am researching micro inverters for my solar setup. Our mains is 230v 50hz 3phase. Are there versions of these micro inverters available for the mains in my country?

    Regards,
    Ryan

    Reply »
    • avatar

      Melissa Womack

      09/25/2013 at 2:28 pm

      Hi Ryan,

      Unfortunately I am unable to answer your question. Please e-mail me your contact info and I would be happy to find someone that can answer it for you! e-mail: Social.Media@SMA-America.com

      Regards,
      Melissa

      Reply »
  • avatar

    Anthony

    09/23/2013 at 6:50 pm

    Do you know of a inverter that excepts different panel watts. Like 5 260 watt panel 10 300watt panels etc. it would multiple line inputs.

    Reply »
  • avatar

    Udo Schmiedt

    10/27/2013 at 6:45 am

    I want to know more about Sunny Boy 240 for the Brazilian grid, and also price liste, since I am using other micro inverters in my projects, thank you !

    Reply »
    • avatar

      Melissa Womack

      10/28/2013 at 9:42 am

      Hi Udo,

      We are going to pass your information along to our international colleagues who can better answer your questions about the Sunny Boy 240 for the Brazilian grid.

      Thanks,

      Reply »
  • avatar

    Juan S Ramirez

    11/09/2013 at 7:38 pm

    Dear Melissa, Is SMA thinking about enabling communication between the SB 240 & the Sunny Island in the future? It just makes a lot of sense to me and to all micro-inverter advocates I have spoken with recently.

    I would love to see this as I strongly believe that a seamless integration would become the most important relative advantage between your new micros and those of your well established competitor.

    There is a need in the market for this and if SMA doesn’t arrive at solution soon, someone else will.

    Reply »
    • avatar

      Melissa Womack

      11/11/2013 at 11:08 am

      Hi Juan,

      Thanks for your feedback. Thus far, micro inverter technology hasn’t been adopted by the off-grid market due to a variety of reasons. However, you are correct in that there’s an advantage for the first to bring an integrated solution. We will pass along your recommendation to our development team.

      Reply »
  • avatar

    Glen G.

    11/26/2013 at 11:58 am

    From what I can find on your website and information, it seems the SB-240 is simply a 3-wire output at 240VAC, with two legs at 120VAC each anda ground. there is NO NEUTRAL on the output, is that correct, or have I missed something somewhere?

    Reply »
    • avatar

      Justin Dyke

      12/11/2013 at 12:43 pm

      Hi Glen,

      That is correct. The daisy chain cable connecting the Sunny Boy Micro 240s is a three-conductor cable: line 1, line 2 and ground for a 240V split-phase AC output. The wire is a branch circuit that connects to the Sunny Multigate.

      Reply »
  • avatar

    Andrew Gray

    12/04/2013 at 1:18 am

    Melissa,

    Do the SunnyBoy Micro Inverters have electrolytic capacitors?

    Andrew Gray

    Reply »
    • avatar

      Justin Dyke

      12/11/2013 at 12:44 pm

      Hi Andrew,

      Yes, the Sunny Boy Micro 240s use electrolytic capacitors. SMA’s dedication to producing the highest quality products has enabled us to use electrolytic capacitors with tremendous success throughout our history. We know that when properly engineered and dimensioned, these capacitors are incredibly reliable in a wide variety of applications and settings.

      Reply »
  • avatar

    Vince

    12/09/2013 at 10:46 am

    What is the warranty for this micro-inverter? Please say 20 years so you can compete with Enphase!

    Reply »
    • avatar

      Justin Dyke

      12/10/2013 at 8:23 am

      Hi Vince,

      As you know, SMA produces the highest quality inverters and offers a variety of flexible service plans that will cover the Sunny Boy 240s for up to 20 years. We pride ourselves on the quality of our products, not only the warranty offered with them, and build our inverters with the expectation they will long outlive their warranty packages. Furthermore, we believe a warranty is only as good as the company backing it and are confident that’s what sets the Sunny Boy 240 aside from other micro inverters on the market.

      Reply »
  • avatar

    Vince

    12/10/2013 at 6:41 pm

    Thank you for the fast response. One other quick question: Will this micro-inverter work with the LG-285 watt panel (Voc=39V, PTC=263.5w) or will it power-clip the output of the panel to 250w? Also, it would be great if you had a 350 watt micro-inverter model to handle the SunPower 300w+ panels.

    Reply »
    • avatar

      Justin Dyke

      12/13/2013 at 11:06 am

      Hi Vince,

      You’re welcome, glad I could help with your earlier question.

      Based on the criteria you provided, SMA offers a wide range inverters that could be a good fit for the modules you’re using. Email me (socialmedia@sma-america.com) with the additional technical details of your system and your contact info, I’ll have someone contact you to discuss possible inverters and/or modules that would best fit your system.

      Thanks!

      Reply »
  • avatar

    booker farmer

    01/08/2014 at 1:34 am

    i would like to know the correct connector adapters to use for the sunny boy 240-us micro inverter. i’m using a Sharp ND-Q250F7 module. i have been told by the seller, who is putting my solar kit together that i can use a SMA MI-DC4_10 DC-MC4 adapter. can you please tell me the adapter that should be used not one that can be used so that i don’t have any matching of adapters to modules problems.

    Reply »
    • avatar

      Justin Dyke

      01/10/2014 at 4:46 pm

      Hi Booker,

      The adapters recommended by your installer would work, however a fully UL certified solution is to use the Mc4 to Smk Adapters. If you have any other questions, feel free to contact our Service Line at 1 877-697-6283 and they can provide any additional assistance.

      Reply »
  • avatar

    booker farmer

    01/15/2014 at 11:30 am

    I have two questions, At my home i do not have a landline for internet. All my wireless devices connect to the internet through my cell phone. My cell phone is the HOT SPOT at my home, Will i be able connect up with the maltigate-us through my cell phone, would i have to buy somekind of router that will allow me to run the multigate-us through my cell phone. Second, Do i have to buy the 10 year extended warranty for the sunny boy 240 micro inverters at the exact time that i first buy the sunny boy 240 micro inverters or can i buy that warranty a little later down the road. Thanks

    Reply »
    • avatar

      Justin Dyke

      01/17/2014 at 4:17 pm

      Hi Booker,

      It would be best for you to call our Service Line at 877-697-6283, they will be happy to assist with your questions and walk you through any connectivity concerns you have for your Sunny Multigate-US.

      Thanks!
      Justin

      Reply »
  • avatar

    Grant

    02/02/2014 at 5:50 am

    I saw you mentioned the units will not work with SunnyIsland Freq Shift

    Will the Upper and Lower Error Freq settings be adjustable under installer permissions. This will permit the units to be deployed in Island Community Systems where the Freq stability and voltage levels vary.

    Reply »
    • avatar

      Justin Dyke

      02/04/2014 at 10:41 am

      Hi Grant,

      The Sunny Boy 240 is not yet certified for Australia, however you can contact the SMA Australia Service line at +61 (2) 9491-4200 or Service@SMA-Australia.com.au and they should be able to help you.

      Thanks,
      Justin

      Reply »
  • avatar

    Mike Houar

    02/10/2014 at 2:15 pm

    What is the percentage if US content in the SMA micro inveter? Where is it assmebled. Does it qualify as a Made In USA product, meeting the all or mostly all definition (purported to be 75% content and final assembly)?

    Reply »
    • avatar

      Justin Dyke

      02/13/2014 at 11:09 am

      Hi Mike,

      I’ve sent you an email to hopefully dive deeper into your question. I look forward to chatting with you soon.

      Best,
      Justin

      Reply »
      • avatar

        Omar

        06/07/2016 at 3:34 pm

        Hi Justin,

        Would I be able to find out if the SMA microinverter qualifies for made in USA treatment?

        Please let me know. Thanks!
        Omar

      • avatar

        Justin Dyke

        06/09/2016 at 3:08 pm

        Hi Omar –

        The Sunny Boy 240-US microinverter does qualify when it is assembled, tested and shipped from our production facility in Denver. It (or its packaging) must carry the label “Assembled in Denver, CO with foreign and domestic parts.”

        Best,
        Justin

  • avatar

    Jesse

    04/22/2014 at 3:43 pm

    When/where can I buy them?

    Reply »
    • avatar

      Justin Dyke

      04/22/2014 at 4:02 pm

      Hi Jesse – they are available now and ready for you! Check out our Where to Buy page for a list of Authorized Distributors ready to help you.

      All the best,
      Justin

      Reply »
  • avatar

    nayiver

    05/15/2014 at 5:33 am

    Buenos días, Tengo un equipo Sunny boy 700u, estoy realizando un montaje de un sistema solar fotovoltaico conectado a la red, mi inquietud es respecto a la conexión de este equipo, quiero saber si el inversor hace la sincronización y conexión de la carga a la red o si se requiere algún tipo de transferencia manual, automática, o algún equipo de temporizador….me gustaría enviar el diagrama de los equipos que voy a instalar, para ello quisiera me informaran de algún correo electrónico para enviar esta información. Gracias

    Reply »
    • avatar

      Justin Dyke

      05/16/2014 at 3:32 pm

      Nayiver,

      Todos los inversores de Norte America son certificado por UL1741. Ellos tienen todos los controls de Anti-Islanding adentro su firmware. No es necesario utilizar una transferencia incluido en su diseño. Cuando se vaya la red, el inversor para de producir energía.

      All SMA inverters in North America are UL1741 listed. They have anti-islanding built in so there is no additional need for an external transfer switch. Once the grid fails, the inverter will stop producing power.

      Reply »
  • avatar

    […] Related Video:SMA Sunny Boy 240-US […]

    Reply »
  • avatar

    Jason

    07/02/2014 at 10:03 am

    A question was asked before regarding the lack of a neutral on these inverters. I’m still unclear on this. The response stated “The daisy chain cable connecting the Sunny Boy Micro 240s is a three-conductor cable: line 1, line 2 and ground for a 240V split-phase AC output.” But in a 240V split-phase panel, there is a neutral to allow for 120 volt circuits. In my panel, ground and neutral are bonded together. If I were to measure across either output leg of the inverter and the inverter ground, would I see 120 volts?

    Reply »
    • avatar

      Justin Dyke

      07/07/2014 at 8:19 am

      Hi Jason,

      I’m happy to clarify for you and anyone else that’s wondering about this. Yes, you will see 120V from either the Line 1 to ground or the Line 2 to ground, when measured at the “Inverter” terminals on the Multigate when the grid connection is wired and energized.

      If you don’t see that for any reason, you can contact our Service Line at 877-697-6283 for troubleshooting and further help if needed.

      Best,
      Justin

      Reply »
  • avatar

    Solaris

    10/30/2014 at 12:11 am

    I really like the SMA SunnyBoy 240-US. Personally, I think if SMA keeps it up and markets these more, they can easily rival the Enphase Microinverters. Here’s a good deal on them http://www.solaris-shop.com/sma-sunny-boy-sb240-us-250w-microinverter-sb240-us-99-10/

    Reply »
  • avatar

    Hans

    11/26/2014 at 12:56 am

    I know Sma makes the best products but you are losing a ton of market to solar edge by not providing a micro inverter or optimizer that will work with sunpower modules.

    Reply »
    • avatar

      Justin Dyke

      12/01/2014 at 10:12 am

      Hi Hans,

      Depending on the type of SunPower modules there are options that work with our Sunny Boy 240-US micro inverters. Are you running into issue with modules that need positive grounding? There are modules where you are correct that they won’t work within our current system due to grounding requirements or the module voltages being so high. As you know, SunPower makes some of the most powerful modules so there are cases where using a Sunny Boy TL-US would allow for more use of their module platform.

      Best,
      Justin

      Reply »
  • avatar

    CF

    09/11/2015 at 3:44 pm

    Do you have any sample wiring schematics to which you can share a link (or share via email)? I would like to see the wiring from micro inverters at the array through junction boxes to Multigate, then AC disconnect and meter. And where does the system connect to a grounding electrode?

    Reply »
    • avatar

      Justin Dyke

      09/15/2015 at 9:18 am

      Hi CF,

      We have some documents that should work for what you’re looking for. And yes, email is the best way to share those with you. Please email me at SocialMedia@SMA-America.com and I will follow up with them shortly.

      Thanks,
      Justin

      Reply »
  • avatar

    R G Weide

    09/30/2015 at 7:20 am

    Dear SMA I’m in the process of designing a solar system and would like to use the Sunny Boy 7000wTL-US-22 Inverter with my array I have contacted several companies for bids. But is seems no one has heard of this model and said I need micro inverters for any shading issues I might have. It’s my understanding that with TL-US-22 with MPP trackers and OptiTrac Global that it will mitigate any shading issues I might have and I don’t need micro inverters also with the TL-US-22 how may panels on each string can you run? and if I get some shade will it knock out the whole array or one string? Please could you help clear up this issue before I spend several thousands dollars and wish I would have went another direction, No matter which way I go my inverter will be a SMA product I think your coumpany offers the best product on the market. Thank You R G Weide

    Reply »
    • avatar

      Justin Dyke

      10/01/2015 at 8:18 am

      Hi RG,

      I was told that Mike Mahon from our Solar Academy has also responded to your questions. However, I wanted to second him in saying that unless you have heavy shading or a very odd roof design, the need for micro inverters is typically overstated. However, if you do have these issues present, then a micro could be the most efficient way to go solar. This is all very hard to say without knowing what your roof looks like, where you’re located and many other details. One great way to see what is possible is through our Sunny Design program to see which type of system will produce more energy given all the details that will impact performance.

      Reply »
  • avatar

    Jon Armstrong

    12/29/2015 at 4:46 pm

    I need to unplug my SMA MICRO DC TO MC4 CABLE ADAPTER from my sma 240 micro inverter. How is this done? Do I need a special tool?

    The other two plugs (SMA Sunny Boy MICRO LANDSCAPE AC Cable 79 inch (2 Meter) with Male Plugs for SB 240-US-10) unplugged easily with a flat blade screwdriver to move the clips out of the lock position.

    Can you help? Jon

    Reply »
    • avatar

      Justin Dyke

      01/04/2016 at 10:51 am

      Hi Jon,

      Once the system is fully de-energized, as I’m sure you’ve done with disconnecting the other plugs, you’ll need to use a standard MC4 disconnect tool to remove the module connections from the DC connection plug that goes into the inverter. These tools are available at most places where other solar equipment is sold and nearly all solar distribution centers where SMA products are sold.

      Best of luck,
      Justin

      Reply »
  • avatar

    James Houck

    11/09/2017 at 5:19 am

    Is it possible to upgrade the SB240 to be compliant with UL 1741 SA?

    Reply »
    • avatar

      Mike

      11/21/2017 at 1:31 pm

      No, the SB 240 has been discontinued, and will not be certified to UL 1741 SA.

      Reply »

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