Appliance energy
How to Calculate Electricity Cost of an Appliance
Convert appliance power and operating time into kWh and cost while distinguishing nameplate power, duty cycle and measured use.
8 min readReviewed 2026-08-24
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Energy & Utilities guides
Understand consumption, demand, cost, efficiency, batteries, solar generation, heating, water, and utility comparisons using entered rates and conditions.
Practical guides
Electricity tariffs
Time-of-Use Electricity Pricing: When Does Shifting Usage Save Money?
Allocate kWh to off-peak and peak periods, then compare a shifted schedule without claiming every load can move safely or practically.
8 min readReviewed 2026-08-24
Read guide Solar economics
Solar Payback Period: Production, Self-Consumption, Tariffs, and Costs
Value self-consumed and exported solar energy separately, then calculate a transparent simple-payback scenario from net installed cost.
8 min readReviewed 2026-08-24
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