UPS power consumption

I have replaced my basic CyberPower Value2200 UPS with a rack mounted Eaton 9130-3000 and noticed that the consumption of the whole rack went up by 70 Watts (from ~150 Watts to ~220 Watts) just by replacing the UPS with all other equipment being the same.

When I compare the power output reported by the UPS and the outlet power meter, it roughly matches the 70 Watts increase, indeed confirming that the difference is eaten (eaton) up by the UPS (all of the equipment is connected via the UPS, so there is no other device that would consume those delta watts).

I get these result by having the UPS in "high efficiency" mode, meaning that the power is fed to the grid and inverter is off, so essentially I am running an expensive on-line UPS in a cheap ass offline mode. I am yet to try out the consumption in fully on-line mode.

That said, I think that inefficiency is attributed to the following:

• the Eaton 9130 seems old like dirt. I could not find any release date, but it seems it went EOL in 2019, so i guess it may be over 10 years old by now
• the low load (reported round 6%) also exaggerates the inefficiencies
• server UPSes are naturally more power hungry (for example the fan is constantly on, even with the UPS in standby mode with outputs off)
• this is a double-conversion unit (although in my understanding in efficiency mode it should act as an offline UPS) with some heavy voltage convertors inside

So it looks like the Eaton will be up for sale and I'd be looking for something smaller and more power efficient. Although I like the idea of being able to run my homelab for 2 hours off of the UPS, electricity outages in my area are rather rare (2-3 times per year during summer thunderstorms), so probably something around 1500VA will be my sweet spot.