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Volusia Voltage Electric
Volusia Voltage Electric
Free Tool
Select what you'd want running during an outage and get a starting estimate for your whole-home standby generator size.
Select everything you'd want running during an outage. This gives you a starting estimate — we'll confirm the exact size with an on-site load calculation.
Estimated generator size
12 kW
Running load: ~5,700W · Peak starting load: ~10,200W (includes a 15% safety margin)
This is a planning estimate, not a final specification. Motor starting loads (AC, well pumps) vary by equipment, and your actual panel and service capacity also factor into a final generator size. Request a free on-site sizing consultation for an exact recommendation.
Generator size isn't about your home's square footage — it's about the actual electrical load you want to keep running, especially the starting surge of large motors like central AC and well pumps. This calculator adds up your selected items and accounts for the fact that motors draw significantly more power to start than to run continuously.
The number above is a solid planning estimate, but the only way to get an exact recommendation is an on-site load calculation — your panel's actual capacity, your specific AC unit's starting load, and your fuel source (natural gas vs. propane) all factor into the final sizing and installation plan.
Request a free on-site sizing consultation and we'll confirm the right generator for your home.