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Rack-mounted alternative grid This is part of the upgraded status of my off-grid power supply so I am black out ready. I have moved over from lead-acid to LFP tech. That’s about 10kWh of electrical goodness in there and it’s all solar charged at the moment. The inverter is old and I haven’t upgraded it yet, as I like it so much. Its only 1U tall and outputs 1.5kW which covers most of the house needs, but it will work in combination with my grid-linked solar and let it do the heavy lifting preserving the batteries. Keywords: Off Topic

Rack-mounted alternative grid

This is part of the upgraded status of my off-grid power supply so I am black out ready. I have moved over from lead-acid to LFP tech. That’s about 10kWh of electrical goodness in there and it’s all solar charged at the moment. The inverter is old and I haven’t upgraded it yet, as I like it so much. Its only 1U tall and outputs 1.5kW which covers most of the house needs, but it will work in combination with my grid-linked solar and let it do the heavy lifting preserving the batteries.

IMG_2218a.JPG Amber.jpg offgrid.jpg Fairlop_Station.jpg IMG_E2916.JPG
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Filename:offgrid.jpg
Album name:Tuopeek / Off Topic
Keywords:Off Topic
Filesize:962 KiB
Date added:06 Nov 2026
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DateTime Original:2026:11:06 19:08:01
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Comment 1 to 6 of 6
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Ria   [Sat 07 Nov 2026 at 01:57]
Interesting, a bit over-the-top for us though, we rarely get power cuts here, only 2 in the last 11 years since I've lived here. We do have a 3kVA UPS powering the router and network stuff, including the phones, which are all IP based now we're on full fibre. It's only been needed twice, once when we had a meter change and once a few weeks ago when somehow power to 1000 houses went out..! And us across the road from a big substation as well Rolling Eyes
Tuopeek   [Sat 07 Nov 2026 at 11:57]
3kVA is pretty big, probably run a lot more than your IT from that easily. All you need is bigger batteries for more storage. Very Happy
Sammi   [Sat 07 Nov 2026 at 13:05]
Haven't got the room, I've got problems getting my knees under the desk as it is.! Laughing
Ria   [Sat 07 Nov 2026 at 20:28]
The extra battery pack we have installed next to the main UPS itself contains two individual battery modules, so with the single one in the UPS that makes three altogether, which gives us around 4¼ hours run time with all the computers and monitors switched on. With those shut down, and just the rack and router powered, we can get 10 hours out of it, which is more than enough for most power cuts, the longest we've had was just over a couple of hours when they changed the meter a while back.

We probably could power more stuff from it, there are a couple of spare sockets on the dado trunking above the desks, and several on the rear of the UPS itself, but that would reduce the run time in the event that we do have a power failure and would make the wiring a bit messy.
Tuopeek   [Sat 07 Nov 2026 at 21:41]
Good to have the backup and the option for extension. Very Happy See your pall Andy's back blowing speaker up on YouTube.
Ria   [Sat 07 Nov 2026 at 22:45]
Good job I was sitting down when I read that Mind Blown Mr. Green Must give him a shout, not heard from him in yonks Wonder

Comment 1 to 6 of 6
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