System calculator

Backup power calculator for home loads

Estimate appliance energy use, peak power draw, and suggested battery capacity for outages or autonomous operation.

For reference: one Pytes V16 provides 16 kWh of usable energy.

How to use it

Keep only the loads you want to power from the system. For refrigerators and pumps, use the approximate active runtime of the compressor or motor rather than a full 24 hours.

Energy consumption calculation for typical home appliances
Appliance	Watts	Quantity	Runtime
Refrigerator	Refrigerator: Watts	Refrigerator: Quantity	Refrigerator: Runtime
Freezer	Freezer: Watts	Freezer: Quantity	Freezer: Runtime
Gas boiler / circulation pump	Gas boiler / circulation pump: Watts	Gas boiler / circulation pump: Quantity	Gas boiler / circulation pump: Runtime
Wi-Fi router / ONU	Wi-Fi router / ONU: Watts	Wi-Fi router / ONU: Quantity	Wi-Fi router / ONU: Runtime
LED light	LED light: Watts	LED light: Quantity	LED light: Runtime
Laptop	Laptop: Watts	Laptop: Quantity	Laptop: Runtime
LED TV	LED TV: Watts	LED TV: Quantity	LED TV: Runtime
Phone chargers	Phone chargers: Watts	Phone chargers: Quantity	Phone chargers: Runtime
Desktop computer	Desktop computer: Watts	Desktop computer: Quantity	Desktop computer: Runtime
Washing machine	Washing machine: Watts	Washing machine: Quantity	Washing machine: Runtime
Microwave oven	Microwave oven: Watts	Microwave oven: Quantity	Microwave oven: Runtime
Electric kettle	Electric kettle: Watts	Electric kettle: Quantity	Electric kettle: Runtime
Induction hob, one zone	Induction hob, one zone: Watts	Induction hob, one zone: Quantity	Induction hob, one zone: Runtime
Well / drainage pump	Well / drainage pump: Watts	Well / drainage pump: Quantity	Well / drainage pump: Runtime
Inverter air conditioner	Inverter air conditioner: Watts	Inverter air conditioner: Quantity	Inverter air conditioner: Runtime
Other appliance	Other appliance: Watts	Other appliance: Quantity	Other appliance: Runtime