February 16Feb 16 I currently have a small house/hobbyhouse, and my off-grid Victron system is in a small room that is attached to the house.I need to add some much needed lighting to the house, seeing though its a hobby house i was considering covering the ceiling with those small spotlights, then i got to think ... those are DC, and the inverters do have losses converting AC to DC, ... also ... almost any hobby device uses DC but gets converted by the power supply from AC.Could i not have a small DC distribution board to power these things directly? It all sounds fine .. but i am not sure how to handle limiting current, voltage etc.Is this even a worth while exercise? How would a DC Distribution board work / be configured? What are the risks?Anyone out there doing this? Some examples would be great if someone has done this before.
February 16Feb 16 54 minutes ago, stoic said:Is this even a worth while exercise? How would a DC Distribution board work / be configured? What are the risks?Anyone out there doing this?No, this is not worth while. Losses in conversion is insignificant against free solar power.You could make a DC board just like an AC board but utilising DC rated breakers... No earth leakages.You could make a board out of fuses... Or nice big knife switches.You could use control voltages to regulate DC-DC circuits.DC arcing and hot connections are probably the highest risk.I saw a YouTube clip of someone using solar PV directly in the house (I think around 80V DC). If you want to go for higher DC voltages, you can go up to 230V DC and use suitable AC appliances directly. Plugs, switches and safety remains a concern.
February 16Feb 16 Author 12 minutes ago, frivan said:No, this is not worth while. Losses in conversion is insignificant against free solar power.You could make a DC board just like an AC board but utilising DC rated breakers... No earth leakages.You could make a board out of fuses... Or nice big knife switches.You could use control voltages to regulate DC-DC circuits.DC arcing and hot connections are probably the highest risk.I saw a YouTube clip of someone using solar PV directly in the house (I think around 80V DC). If you want to go for higher DC voltages, you can go up to 230V DC and use suitable AC appliances directly. Plugs, switches and safety remains a concern.So essentially .... i am not gonna be able to call everyone else noobs for still converting AC power. to DC :) .. Got it!Thanx for this. I was also mainly in the dark about how to manage the DC power.
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