Re: [RE-wrenches] Hybrid inverter with no battery

Fri, 01 Aug 2025 07:57:36 -0700

Does anyone have or know where to find an explanation of how the all in ones work?

Like how does the CC work, battery charger etc. flow chart of the electrons. 

It’s still pretty mysterious to me and I’d like to know more 

Jay

On Aug 1, 2025, at 8:46 AM, Harry Mahon via RE-wrenches <[email protected]> wrote:



Sam – the SMA Backup Select is available for order from Authorized Distributors, but has not begun shipping (will likely be closer to Q4). Should be well under $1000.

 

Sunny Boy Smart Energy had the Backup Secure (old SPS) function to provide 120Vac power to dedicated outlet(s), requires manual operation with dedicated switch.

Can use Backup Secure with or without battery connected to inverter, up to 1,920W. Can also use with rapid shutdown on array, requires SMA Backup Start card accessory 9installs inside inverter) in that case.

 

The new SMA Backup Select is an accessory that is an MID with included backed up loads panel.  Still only 120Vac power in an outage, but automatic switching and powers up to 7 circuits in house (no need to move plugs).  Also can operate with or without battery, with or without rapid shutdown, up to 3,840W for 3.8-7.7kW SBSE inverter, up to 5,760W for the 9.6/11.5kW SBSE models.

Datasheet: https://files.sma.de/downloads/BU-SLCT-US-50-DS-en_us-11.pdf

Installation Manual: https://files.sma.de/downloads/SMABackupSelect-IA-en-10.pdf

 

SMA Backup Home (full power of inverter in outage, 240Vac backed up loads) is likely not going to be available this year unfortunately.

 

Best regards –

Mike

 


Michael Mahon (he/him)
Solar Academy Manager  |  SMA America

+1 916 918 9412
SMA America | Solar Academy | TechTip Channel | Upcoming Academy Trainings

This email and any attachments thereto may contain SMA America, LLC confidential, privileged and private material for the sole use of the intended recipient. Any review, copying, or distribution of this email (or any attachments thereto) by others is strictly prohibited. If you are not the intended recipient, please contact the sender immediately and permanently delete the original and any copies of this email and any attachments thereto. Thank you.

 

From: RE-wrenches <[email protected]> On Behalf Of Sam Haraldson via RE-wrenches
Sent: Friday, August 1, 2025 7:09 AM
To: RE-wrenches <[email protected]>
Cc: Sam Haraldson <[email protected]>
Subject: Re: [RE-wrenches] Hybrid inverter with no battery

 

I have installed two of the SMA Sunny Boy Smart Energy hybrid inverters but only in a conventional solar-only, grid-tied design without batteries.  

 

 

There is a separate SMA Backup Select box required for off-grid backup operation and I have not laid eyes on it in person.

 

- Sam

 

OnSite Energy

Sam Haraldson

Operations Specialist

(406) 551-6135

1515 N. Rouse Ave Bozeman, MT 59715

Locally owned and operated since 2012

B Corporation

 

_______________________________________________
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: [email protected]

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

_______________________________________________
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: [email protected]

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/[email protected]/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Reply via email to