Electricity Usage and Measurement
Generator Load Percentage Calculator
Enter values for Generator Load Percentage that describe the same case, then use generator loading as a check rather than a design approval.
Check Generator loading
Use measured values for Generator Load Percentage when available and rated values only when they describe the same condition.
Keeping generator rating tied to the case
Each Generator Load Percentage entry should describe the same circuit, device, billing period, or test condition. Mixed sources can make a plausible but wrong result.
Connected apparent load is shown as 72 kVA. Enter connected apparent load in kVA.
Generator rating is shown as 100 kVA. Enter generator rating in kVA.
Field context for Generator Load Percentage
Generator Load Percentage needs the billing period and demand interval attached. A meter reading and a bill line can represent different time windows.
For Generator Load Percentage, a useful note is the reason the calculation was run: troubleshooting, sizing, comparison, billing review, or a quick unit check.
How generator loading is calculated
The Generator loading value and any supporting metrics belong to this same Generator Load Percentage case, not to a nearby run with different inputs.
Read the Generator Load Percentage equation from the units on this page. A familiar symbol can shift meaning between DC, AC, energy, component, or billing work.
Where Generator Load Percentage can break down
Motor starting and phase balance require separate checks.
Records for generator rating
Store the meter period, rate schedule, demand interval, and whether the Generator Load Percentage value is before or after taxes.
If a later Generator Load Percentage run changes only generator rating, label it as sensitivity work. Several changed conditions deserve a new baseline.
Before saving generator loading
Can the default values be used as a recommendation?
No. The Generator Load Percentage defaults only demonstrate the form. Replace them with measured or rated values for the actual electricity usage and measurement case.
What should be recorded with the answer?
Save the Generator Load Percentage inputs, unit basis, operating case, and result note so generator loading can be reproduced later.
Which value should be rounded first?
Keep generator rating at source precision during Generator Load Percentage; round generator loading only where presentation or purchasing requires it.
When should this be run again?
Run a new Generator Load Percentage case when the source condition changes, such as voltage, load, rate schedule, temperature, component, connection, or period.