That conclusion all depends on how much extra power the UPS uses while acting as a pass-through. I think the SOLIX doesn't directly pass through the power so it's having the inefficiencies of conversion to and from AC-DC-AC, maybe this version has a more efficient pass-through system?
What's the draw of all your software to serve the app etc? That might still might drive it to be net negative for your energy costs depending on how much higher the peak rate is than your base rate.
