nanog mailing list archives
Re: Backup DC power standardization with Photovoltiac battery systems?
From: Sean Donelan <sean () donelan com>
Date: Tue, 18 Apr 2023 02:41:26 -0400 (EDT)
If both PV battery walls and broadband CPE supported Power-Over-Ethernet as a backup power source, that would work too. POE supports greater distances than USB-C.
I'd prefer broadband CPE (UL listed) with a standardized backup power connector (doesn't exist, but I can dream).
For DIYers, building their own magic box to convert from their powerwall to backup low-voltage small devices. This was one of the few DIYers who include appropriate fuses in their design. Too many Youtube DIYers treat low-voltage as harmless and don't include safety devices.
I've seen the after-effects of a few DC/Inverter plant meltdowns. When I used to visit IXPs and data centers, all of them seemed to have at least one melted, metal wrench :-)
https://www.youtube.com/watch?v=xsZzlF_NA6E https://projectswithdave.com/48v-to-12v-dc-dc-converter-project-build/
Current thread:
- Backup DC power standardization with Photovoltiac battery systems? Sean Donelan (Apr 14)
- Re: Backup DC power standardization with Photovoltiac battery systems? Joe Greco (Apr 14)
- Re: Backup DC power standardization with Photovoltiac battery systems? Sean Donelan (Apr 14)
- Re: Backup DC power standardization with Photovoltiac battery systems? Josh Luthman (Apr 17)
- Re: Backup DC power standardization with Photovoltiac battery systems? Sean Donelan (Apr 17)
- Re: Backup DC power standardization with Photovoltiac battery systems? Mark Tinka (Apr 19)
- Re: Backup DC power standardization with Photovoltiac battery systems? Mark Tinka (Apr 19)
- Re: Backup DC power standardization with Photovoltiac battery systems? Sean Donelan (Apr 14)
- Re: Backup DC power standardization with Photovoltiac battery systems? Joe Greco (Apr 14)