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Orchard Yield Energy Cost Estimator

The Orchard Yield Energy Cost Estimator estimates the electrical energy and cost required to operate an orchard pump or similar powered system across a series of irrigation or production events. By combining equipment power, runtime per event, number of events, and electricity price, it provides a simple seasonal operating-cost view.

An orchard-area field is included so the breakdown can report cost per acre. The model assumes the entered kilowatt load is representative while the equipment runs and that all energy is billed at one price. Motor efficiency, variable-speed operation, demand charges, and hydraulic performance are outside the calculation unless they are already reflected in the power value or electricity rate used.

Calculator inputs

kW
hr
events
$/kWh
acres
Result
—
estimated seasonal energy cost
Seasonal energy use—
Cost per event—
Cost per acre—

1. Enter average power
Use the measured or estimated operating load of the pump or equipment in kilowatts.

2. Set runtime per event
Enter how many hours the equipment runs during one typical irrigation or operating event.

3. Enter the number of events
Use the number of events expected in the planning period.

4. Add the electricity price
Enter the energy charge per kilowatt-hour that best represents the operating period.

5. Enter orchard area
The area does not change total cost; it is used to calculate the cost-per-acre breakdown for comparison.

Total runtime = Hours per event × Number of events
Seasonal energy = Power (kW) × Total runtime
Seasonal energy cost = Seasonal energy × Electricity price
Cost per acre = Seasonal energy cost ÷ Orchard area

This model uses a constant average electrical load and a single energy price.

What the result means

The main result is the electricity cost of operating the entered load for the total event runtime at the specified price per kilowatt-hour.

Use measured average kW when possible. Utility fixed fees, demand charges, fuel costs, and pumping-system maintenance are not included.

Given

  • 18.5 kW average load
  • 7.5 hours per event
  • 28 events
  • $0.15 per kWh
  • 40 acres

Calculation
Total runtime = 7.5 × 28 = 210 hours.
Energy = 18.5 × 210 = 3,885 kWh.
Cost = 3,885 × $0.15 = $582.75.
Cost per acre = $582.75 ÷ 40 = $14.57/ac.

Result
Estimated seasonal energy cost = $582.75.

The modeled equipment uses 3,885 kWh over the season, equivalent to about $14.57 per orchard acre.

Should motor horsepower be entered as kilowatts?

No. The field expects electrical kW. If you only know horsepower, convert carefully and remember that electrical input can differ from mechanical output because of motor and system efficiency.

Does orchard acreage change the total energy estimate?

No. Total energy is driven by power and runtime. Acreage is used only to normalize the resulting cost per acre.

How should variable-speed pump operation be handled?

Use a measured or estimated average kW across the operating period, or run separate scenarios for different speed settings and add the results.

Why can the utility bill still differ from this result?

Demand charges, fixed service fees, time-of-use pricing, taxes, and other billing components are not included in the single-rate model.

Can I compare two irrigation schedules with this calculator?

Yes. Change runtime and event count while keeping other assumptions consistent to see how the electrical operating cost changes.