Farm Energy Calculator

Enter your farm's key energy-consuming operations — including irrigation hours, lighting, grain drying, HVAC, and livestock equipment — and the Farm Energy Calculator estimates your total monthly energy consumption in kWh, your estimated electricity cost, and your CO₂ emissions. You also get a breakdown of energy use by category so you can spot where savings are possible and assess your renewable energy potential. Also try the Farm Carbon Footprint Calculator.

acres

Total cultivated or managed farm acreage.

$/kWh

Check your utility bill for your rate per kWh.

hrs/month

Average monthly hours your irrigation pumps run.

HP

Horsepower rating of your main irrigation pump motor.

hrs/month
W

Sum of wattage of all farm lighting fixtures.

hrs/month
kW
hrs/month

Feeders, waterers, ventilation fans, milking equipment, etc.

kW
hrs/month
kW
sq ft

South-facing roof space or open ground available for solar panels.

hrs/day

Typical peak sun hours for your region (4–6 for most US locations).

Results

Total Monthly Energy Use

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Estimated Monthly Electricity Cost

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Estimated Annual Electricity Cost

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Monthly CO₂ Emissions

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Estimated Solar Generation Potential

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Potential Solar Offset

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Results Table

Frequently Asked Questions

How does the Farm Energy Calculator estimate monthly kWh consumption?

The calculator multiplies the power rating (in kW) of each piece of farm equipment by the number of hours it operates per month to get kWh for that equipment. All equipment kWh values are summed to give your total monthly farm energy consumption. For irrigation pumps, horsepower is converted to kW using the standard factor of 0.746 kW per HP. See also our calculate No-Till vs Conventional Tillage No-Till Net Cost Advantage (per acre/year).

What is a typical electricity cost for farms in the US?

Agricultural electricity rates in the US typically range from $0.08 to $0.14 per kWh, though rates vary significantly by state and utility provider. Many rural electric cooperatives offer special agricultural tariffs. Check your most recent utility bill for your exact rate.

How is the CO₂ emissions estimate calculated?

The calculator uses the US EPA's average grid emissions factor of approximately 0.855 lbs of CO₂ per kWh of electricity consumed (national average). Your total monthly kWh is multiplied by this factor to estimate monthly carbon dioxide emissions. Actual emissions depend on your regional grid's energy mix.

How is solar generation potential estimated?

The estimate is based on the available roof or land area you enter. A standard solar panel produces roughly 15 watts per square foot. The total panel capacity (in kW) is multiplied by your daily peak sun hours and 30 days to estimate monthly solar generation. This is a simplified estimate — a professional solar assessment will give a more precise figure. You might also find our Cover Crop Benefits useful.

Which farm operations typically use the most energy?

Irrigation pumping is usually the largest energy consumer on most farms, often accounting for 30–50% of total farm electricity use. Grain drying, ventilation and HVAC for livestock facilities, and refrigeration are other major consumers. Lighting, while highly visible, typically represents a smaller share of total use.

Can I use this calculator to assess a wind energy or biogas opportunity?

This calculator focuses on solar generation potential alongside energy consumption. For wind or biogas feasibility, you would need site-specific wind speed data or manure/crop waste volumes. Contact your local USDA-NRCS office or farm energy auditor for a comprehensive renewable energy assessment.

What is an energy audit and should I get one for my farm?

A farm energy audit is a professional on-site assessment that identifies inefficiencies and recommends improvements across all your energy systems. USDA's REAP (Rural Energy for America Program) and many state energy offices offer free or subsidized farm energy audits. For farms with high energy bills, an audit can pay for itself many times over through efficiency savings.

Are there government incentives for farm renewable energy installations?

Yes. The USDA REAP program provides grants covering up to 25% of costs and loan guarantees for renewable energy systems on agricultural operations. The federal Investment Tax Credit (ITC) also covers a significant percentage of solar installation costs. Many states offer additional incentives — consult your local USDA service center or a renewable energy consultant for current programs.