Painting and coatings
Spray booth operating energy cost
Budget spray, bake and idle energy from measured inputs and supplied durations, without selecting process conditions.
Your inputs
Complete the fields for your selected method. Zero means intentionally zero, not unknown. Currency selection labels amounts; it does not convert exchange rates.
How this calculation works
cycle energy=sum(measured mode input*mode hours); annual cost=cycles*sum(mode energy*matching tariff)+entered idle cost. Metered alternative: cycle energy = sum(mode kWh); annual cost = cycles × sum(mode kWh × price) + separately entered idle cost.
Use measured real electrical input kW, not volts × amps or shaft power. Hours describe time at that measured input. All rates are user supplied; no tariff lookup. An integrated kWh reading must not have duty cycle applied again. Each mode uses compatible energy input and price. Additional idle cost excludes modes already counted; no process settings or cure prescriptions.
What information do I need?
Use records for the same job, equipment or accounting period. Only the fields for your selected entry method are required. An unknown amount is not zero.
Input definitions and where to find them
- How do you know the energy use?: Choose the information you actually have. Only the selected method is required.
- Measured spray bake and idle modes per cycle: One row per distinct measured spray bake and idle modes per cycle, on the stated row and period basis. Do not enter both components and their total. Used with: Measured input power and operating schedule.
- Measured mode input (kW): Real measured input while this mode operates.
- Mode hours per cycle (hours): Actual time from logs/calendar/statement, or an explicitly labeled future schedule. Keep the period in mode hours per cycle consistent with all matching costs/outputs.
- Mode energy price per kWh (selected currency): Matching energy/volumetric tariff or bill component for mode energy price per kwh, excluding fixed charges or other charges not modeled.
- Cycles per year (cycles/year): Actual count from job, sales, production or service records for cycles per year. Future counts are explicit assumptions; do not infer demand.
- Additional annual idle energy cost (selected currency): Additional annual idle cost not already in mode rows.
- Measured energy for each mode in one cycle: Use an isolated record or clearly labeled estimate matching this field and period. Do not substitute an unrelated whole-site total. Used with: Metered or separately estimated kWh.
- Measured input energy per cycle in this mode (kWh): Use matching records or a clearly identified estimate for the stated scope and period.
- Matching price per kWh (selected currency): Use matching records or a clearly identified estimate for the stated scope and period.
Use the Where to find this value controls beside the inputs for available work-it-out helpers. Estimates remain your assumptions; a helper does not verify the source figures.
Worked example
Example amounts use US dollars (USD).
Example answer: Energy per cycle is 20.00 kWh/cycle for the illustrative inputs below.
Example inputs
- How do you know the energy use?: Measured input power and operating schedule
- Measured spray bake and idle modes per cycle
- Measured mode input: 10.00 kW
- Mode hours per cycle: 1.00 hours
- Mode energy price per kWh: $0.15
- Measured mode input: 20.00 kW
- Mode hours per cycle: 0.50 hours
- Mode energy price per kWh: $0.15
- Cycles per year: 500.00 cycles/year
- Additional annual idle energy cost: $100.00
- Energy per cycle
- 20.00 kWh/cycle
- Annual energy cost
- $1,600.00
These illustrative values are not recommended rates or industry averages. Replace every example input with your own figures.
Use the result well
Budget spray, bake and idle energy from measured inputs and supplied durations, without selecting process conditions.
Keep inputs on the same scope and time basis. Calculations retain precision internally; displayed values generally round to two decimal places, with extra precision for very small values and whole-unit rounding where required. Economic comparisons describe your supplied assumptions and do not guarantee future results.
This tool provides business arithmetic. It does not approve engineering designs, establish legal or tax treatment, select equipment or certify safe operating conditions.