UPS Load Priority Runtime Planner — Protect Critical Loads First
Group connected loads by priority and see how UPS autonomy changes when lower-priority equipment is shed.
UPS battery and load inputs
Loads
Why load shedding can extend UPS autonomy
UPS runtime is strongly affected by output load. Protecting only essential loads can substantially increase the time available for controlled shutdowns or continued operation.
Priority groups
Priority grouping makes the result operational rather than treating every connected device as equally important.
Runtime scenarios
The calculator reports runtime for Priority 1 alone, Priority 1+2, and all loads. These scenarios show exactly what autonomy is being exchanged for additional load support.
Planning interpretation
Compare each runtime with the required runtime. If the all-load scenario is too short but the essential-only scenario is adequate, a load-shedding strategy may be worth investigating.
Limitations
Actual UPS batteries have discharge-rate effects, aging, temperature dependence and manufacturer-specific usable capacity.
Frequently asked questions
Can two loads have the same priority?
Yes. The planner simply groups them together.
Can a load be zero?
Yes, although it contributes nothing to the runtime calculation.
Does this control the UPS?
No. It is a planning tool and does not send commands to equipment.