Examples
Examples
Try the starting example
- Combined warmer rated/measured power (W)
- 800
- Average active duty fraction
- 0.75
- Preheat duration (min)
- 45
- Additional energized session time (min)
- 30
- Electricity price (USD/kWh)
- 0.25
- Session electricity (kWh)
- 0.75
- Session energy cost (USD)
- $0.19
- Average electrical draw (W)
- 600
Try another scenario
- Combined warmer rated/measured power (W)
- 800
- Average active duty fraction
- 0.75
- Preheat duration (min)
- 60
- Additional energized session time (min)
- 30
- Electricity price (USD/kWh)
- 0.25
- Session electricity (kWh)
- 0.9
- Session energy cost (USD)
- $0.23
- Average electrical draw (W)
- 600
Calculation method
Calculation method
Session electricity (kWh)
power*duty*(preheat+additional)/60000.
Session energy cost (USD)
kWh*price.
Average electrical draw (W)
power*duty.
Symbols and units
- a
- Combined warmer rated/measured power (W)
- b
- Average active duty fraction
- c
- Preheat duration (min)
- d
- Additional energized session time (min)
- e
- Electricity price (USD/kWh)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Electrical energy arithmetic from supplied aggregate power/duty; no tire temperature, warm-up readiness or safe operation claim. Supported limits: Power>=0; duty 0..1; durations>=0; tariff>=0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.