[RE-wrenches] Trace SW4024 feeding back to grid

[Dave Angelini Offgrid Solar]

Deselect grid sell or set sell amps to zero.  A  friend sent this.  Good 
Luck!

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 2026-01-12 11:28 am, Dave Angelini Offgrid Solar wrote:

> Sounds like this could happen. The (really) old SW input had an option 
> to do this. Disconnect this.  Do you have the manual?  I might but not 
> nearby now.  Good Luck
> 
> 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 2026-01-10 1:12 pm, David Palumbo via RE-wrenches wrote:
> 
>> Wrench,
>> 
>> An off-grid installation of mine from many years ago has is now using 
>> grid power instead of a generator. The utility is telling the 
>> homeowner that they are going to disconnect him because his house is 
>> back feeding 1 amp into their grid power.
>> 
>> I've been retired for many years now and did not do any of the work to 
>> connect the utility power to his Trace SW4024 inverter/charger. The 
>> utility power became available when his son brought in utility power 
>> for his maple sugaring operation in the neighborhood, and the father 
>> connected power to his house to replace his fossil fueled generator 
>> for additional charging into his battery bank. They do not have a grid 
>> interconnect sellback agreement with the utility.
>> 
>> I have no experience with this, but I'm assuming that the utility grid 
>> is seeing power from its input connection to his Trace SW4024. Does 
>> that sound right? If so, is there a simple solution to fix this 
>> problem while continuing to use the grid power through his SW 
>> inverter?
>> 
>> Thanks for any advice that may help.
>> 
>> David Palumbo
>> Hyde Park, VT
>> 
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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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