3 ms·
It pains me that in my home server setup, I have solar panels that produce DC, then an inverter converts that to AC for the wall outlet, then my UPS converts th
by pants2 3y ago
It pains me that in my home server setup, I have solar panels that produce DC, then an inverter converts that to AC for the wall outlet, then my UPS converts that to DC to charge its battery, which converts it back to AC to plug my servers into, then the server PSU converts it to DC to power the components. All that switching has to waste a lot of energy (DC->AC->DC->AC->DC).
- kayson 3y agoSupposing each conversion is 90% efficient, you're looking at 65.6% overall. If your server is around 300W, running 24/7 (which is what mine was before my power-reduction project), you're looking at 17kWh of waste/wk. That's quite a lot. Even if you go up to 95% it's still 13kWh...
- fy20 3y ago90% is rather low today. BYD has a battery system that has a round-trip effiency of 96%. Solar inverters often have >99% effiency - although it varies across their operating range, dropping at the low end as they are optimized for peak power. https://bydbatterybox.com/uploads/downloads/230530_BYD_Battery-Box_Premium_HVS&HVM_Datasheet_V1.7_EN-647eedf90f9c3.pdf https://bydbatterybox.com/uploads/downloads/230530_BYD_Batte...