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.brow...@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)
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Bret Busby
Armadale
West Australia
(UTC+0800)
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