[RE-wrenches] Backup Mode Indicator for Whole Home Battery?

[Dave Angelini Offgrid Solar]

There is already a single LED in most utility meters that tells you the 
grid is on. I have marked it with a sharpie for a client.

I suppose you want something for clipping on to the Grid input that can 
give an alarm in the house.
Amazon had something that I used once. Will try and look it up.

Dave Angelini Offgrid Solar
"we go where powerlines don't"
    [1]https://offgridsolar1.com/ [2]  [1]
e-mail  offgridsolar at sti.net
text 209 813 0060

On 2025-02-27 9:16 am, Nicholas Ponzio via RE-wrenches wrote:

> Dear Esteemed Wrenches,
> 
> This issue arises periodically, and I'm hopeful someone in the group 
> has devised a cost-effective, low-power solution.
> 
> For a whole-home backup system, how can we best alert homeowners that 
> they are operating on battery power? These homeowners do not use 
> smartphones and won't receive push notifications. Is there a simple 
> solution to activate a single light or audible alarm exclusively when 
> the grid is down? This particular instance involves a FranklinWH 
> system, but the same challenge applies to any battery with a whole-home 
> backup and "instant-on" transfer switch.
> 
> Thank you in advance for your insights.
> 
> Sincerely,
> Nicholas Ponzio
> Building Energy
> 
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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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