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Re: Recommendations for a UPS?

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On 1/8/23 02:53, Bret Busby wrote:
> On 1/8/23 02:41, Jeffrey Walton wrote:
>> On Mon, Jul 31, 2023 at 2:13 PM Tom Browder <tom.browder@gmail.com> 
>> wrote:
>>>
>>> I used to use UPS units from APC back when you could replace the 
>>> battery. I haven't had an UPS (but always on a surge protecter) for 
>>> awhile, but electricity (now FPL) is not as reliable in my new 
>>> location and I need one.
>>>
>>> All the reviews I've seen on Amazon for smaller capacity UPSs for APC 
>>> and Tripp Lite are not that great (I usually concentrate on the one- 
>>> and two-star reviews).
>>>
>>> Any recommenndations from fellow Debian folks?
>>
>> I put them on all my electronic devices. We use about 13 of them
>> throughout the house. There is one at the ONT, one at the router, one
>> at each tv/cable box, and one for each computer in the house. In my
>> test lab in the basement, I keep a few computers grouped together and
>> plugged into one UPS. I have 4 groups, so I need four UPSes.
>>
>> Our use case is an occasional power outage of several minutes,
>> brown-outs and dirty power. If power looks like it is going to be out
>> longer, I turn on our backup generator. It produces _really_ dirty
>> power. Total Harmonic Distortion (THD) is between 15% and 20%.
>>
>> We use the 425 VAC units [1] and 600 VAC units [2], depending on the 
>> load.
>>
>> [1] https://www.amazon.com/gp/product/B01HDC236Q
>> [2] https://www.amazon.com/gp/product/B01FWAZEIU
>>
> 
> 
> With all of that, including 13 UPS's, I wonder whether it would not be 
> more feasible to buy a household BESS with a capacity of 10kWh, and a 
> dedicated inverter, to provide a single UPS.
> 
> Having replaced/upgraded our household rooftop photovoltaic system last 
> year, I got a 19kW 

That should have been 19kWh; the hybrid inverter can draw 5kW continuous 
power from the BESS.

> BESS connected to a hybrid inverter that provides UPS 
> (switchover time less than 10ms), with it configured to retain 25% 
> (about 4kWh) for reserve power. With that, we have gone through multiple 
> grid power outages, of several hours long, each, with no loss of 
> electricity supply to the house. The whole of the household, is on the 
> protected circuit (apart from a bore pump, and a solar HWS booster 
> element, which has not been turned on for a few years).
> 
> ..
> Bret Busby
> Armadale
> West Australia
> (UTC+0800)
> ..............
> 

-- 
..
Bret Busby
Armadale
West Australia
(UTC+0800)
..............

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Recommendations for a UPS? Tom Browder <tom.browder@gmail.com> - 2023-07-31 19:30 +0200
  OT: Re: Recommendations for a UPS? john doe <johndoe65534@mail.com> - 2023-07-31 19:40 +0200
    Re: OT: Re: Recommendations for a UPS? Tom Browder <tom.browder@gmail.com> - 2023-07-31 20:50 +0200
      Re: OT: Re: Recommendations for a UPS? john doe <johndoe65534@mail.com> - 2023-08-02 19:00 +0200
  Re: Recommendations for a UPS? "Russell L. Harris" <russell@rlharris.org> - 2023-07-31 19:50 +0200
    Re: OT: Recommendations for a UPS? Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-07-31 20:30 +0200
  Re: Recommendations for a UPS? ghe2001 <ghe2001@protonmail.com> - 2023-07-31 20:00 +0200
  Re: Recommendations for a UPS? Roger Price <debian@rogerprice.org> - 2023-07-31 20:00 +0200
  Re: Recommendations for a UPS? Bret Busby <bret@busby.net> - 2023-07-31 20:10 +0200
  Re: Recommendations for a UPS? Jeffrey Walton <noloader@gmail.com> - 2023-07-31 20:50 +0200
    Re: Recommendations for a UPS? Bret Busby <bret@busby.net> - 2023-07-31 21:00 +0200
    Re: Recommendations for a UPS? Bret Busby <bret@busby.net> - 2023-07-31 21:00 +0200
  Re: Recommendations for a UPS? songbird <songbird@anthive.com> - 2023-07-31 21:30 +0200
    Re: OT: Protecting electrical equipment; was: Recommendations for a  UPS? Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-08-01 09:50 +0200
      Re: OT: Protecting electrical equipment; was: Recommendations for a UPS? Nicholas Geovanis <nickgeovanis@gmail.com> - 2023-08-01 17:10 +0200
        Re: OT: Protecting electrical equipment; was: Recommendations for a  UPS? gene heskett <gheskett@shentel.net> - 2023-08-01 20:10 +0200
          Re: OT: Protecting electrical equipment; was: Recommendations for a UPS? Nicholas Geovanis <nickgeovanis@gmail.com> - 2023-08-02 00:50 +0200
            Re: OT: Protecting electrical equipment; was: Recommendations for a  UPS? gene heskett <gheskett@shentel.net> - 2023-08-02 19:10 +0200
  Re: Recommendations for a UPS? Charles Curley <charlescurley@charlescurley.com> - 2023-08-01 01:50 +0200
    Re: Recommendations for a UPS? "Roy J. Tellason, Sr." <roy@rtellason.com> - 2023-08-01 22:20 +0200
      Re: Recommendations for a UPS? Tom Browder <tom.browder@gmail.com> - 2023-08-01 23:10 +0200

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