What this analyzer adds beyond demand factor
Demand factor gives a ratio for connected load versus maximum demand. This analyzer goes one step further for decision support by showing the absolute difference between connected capacity and demand for every equipment group, ranking the major demand contributors and showing the overall connected-to-demand relationship.
Core calculations
Demand ratio = maximum demand ÷ connected load.
Unused connected capacity = connected load − maximum demand.
Overall ratio = total maximum demand ÷ total connected load.
The “unused” result is a mathematical difference, not a promise that the equipment can actually be repurposed or that additional load can be added safely.
Worked example
If a motor group has 160 units of connected load and a measured maximum demand of 96 units, the demand ratio is 60% and the mathematical connected-to-demand difference is 64 units. That does not mean 64 units of additional electrical load can simply be connected without a wider engineering assessment.
Major demand contributors
The ranking highlights groups with the largest entered maximum demand. A high demand contributor can deserve closer attention even when its demand ratio is moderate because its absolute contribution to the system can be significant.
How to use the analysis
Use the result to separate three questions: how much equipment is connected, how much demand is actually observed, and which groups dominate the demand. This supports load monitoring and planning decisions without conflating physical connected capacity with available electrical capacity.
Safety and limitations
The tool does not calculate spare breaker capacity, conductor ampacity, service capacity, voltage drop or protection requirements. Measurements and assumptions should be validated before being used for engineering decisions.
Frequently asked questions
What does unused connected capacity mean?
It is simply connected load minus maximum demand for the entered group. It is not an automatically available future-load allowance.
Can I use an assumed maximum demand?
Yes. Label assumptions clearly and avoid presenting assumed values as measured site data.
Why rank demand contributors?
It helps identify which equipment groups have the greatest absolute influence on the modeled system peak.