Inputs to prepare
Enter total simultaneous running kW, the largest additional starting kW, project power factor and a stated spare-capacity percentage.
GENKVA factory calculator
Generator Size Calculator
Estimate running and starting demand, then compare it with our confirmed kVA classes.
This early-stage estimate considers running load, the largest motor start, power factor and spare capacity.
Interactive factory tool
Enter your project data
Need the factory to verify it?
Send the calculated values with your load list, fuel information and electrical specification.
What the result means
The tool calculates a preliminary required kVA and identifies the nearest confirmed GENKVA class that is not below that estimate.
How to use it
Use the shortlist to prepare an RFQ. Harmonics, load steps, starting method, voltage dip, altitude and temperature can change the final selection.
Method and limits
A useful estimate, not a final equipment selection.
We show the calculation and keep the inputs visible. Complex loads, harmonics, voltage and frequency dip, load steps, altitude, temperature and exact machine data can change the final result.
For critical systems, motor-rich loads or final procurement, send the result to our factory and have the complete power system reviewed by qualified engineers.