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Backup Power Planner

Sources

Every number in the planner traces to one of these. Manufacturer charts and government pages are marked high reliability; secondary articles medium or low. Where a value isn’t published, the planner says so instead of guessing.

IDPublisherWhat we use it forReliabilityChecked
HON Honda Power Equipment
manufacturer wattage guide
Home, recreational, construction and farm tables with starting and running watts. Used for 46 appliances. high 2026-09-26
CHA Champion Power Equipment
manufacturer wattage chart
Page states 'Date Updated: April 17, 2026'. Ranges for running and starting watts. Used for 59 appliances. high 2026-09-26
GEN Generac
manufacturer worksheet PDF
Running watts only; starting watts shown as asterisks. Some values are conservative or inconsistent (window AC 12000 BTU 3250 W). Used for 3 appliances. medium 2026-09-26
CHAPDF Champion Power Equipment
older flyer PDF
Values look inconsistent with the current web chart (for example dryer 1000 W). Used only for air fryer, flagged low. Used for 1 appliance. low 2026-09-26
SMH SizeMyHome
secondary aggregator
Cites generator makers, Franklin Electric and ResMed but is not a primary source. Used only for gas dryer, flagged low. Used for 1 appliance. low 2026-09-26
TGW TheGreenWatt
secondary article
Refrigerator watts, surge multiple, duty cycle and daily kWh; cites ENERGY STAR product finder and DOE standards. Used for 1 appliance. medium 2026-09-26
OUP OUPES
manufacturer blog
Source of the 0.85 efficiency factor. medium 2026-09-26
TTH Test Talk
secondary article
Sizing margin, largest-surge rule, load band, altitude derate. medium 2026-09-26
CPSC U.S. Consumer Product Safety Commission
government safety guide
Generator placement and CO alarm guidance. high 2026-09-26
ECO EcoFlow
manufacturer product pages
Also delta-3, river-3-plus pages; see power_stations.csv. high 2026-09-26
ANK Anker SOLIX
manufacturer product pages
See power_stations.csv for each URL. high 2026-09-26
CPSC26 U.S. Consumer Product Safety Commission
government news release
May 27 2026. Never indoors (garages, basements, crawlspaces, sheds) even with doors or windows open; outdoors at least 20 feet from homes, exhaust away from windows, doors and vents; CO shut-off models certified to PGMA G300-2023 / UL 2201-2023. high 2026-09-26
GENSUP Generac
manufacturer support article
Sep 4 2025. Backfed power can injure or kill utility workers, can clash with restored utility power, and violates codes in most jurisdictions; use a manual transfer switch. medium 2026-09-26

Model specs

Generator and power-station specs come from each manufacturer’s product page or owner’s manual, linked from every result and checked 2026-09-26. We don’t show prices: they change daily.