Diesel Generator Working Cost

Calculating the diesel generator working cost involves considering several factors, including fuel consumption, maintenance, depreciation, and other operational expenses. Here’s a detailed breakdown of how to estimate the working cost:

1. Diesel Generator Fuel Consumption

Diesel generators consume fuel based on their load. Fuel consumption is typically measured in liters per hour (L/hr).

Steps to Calculate Fuel Cost:

• Determine Fuel Consumption Rate: Refer to the generator’s specifications to find the fuel consumption rate at different load levels (e.g., 50%, 75%, 100% load).
• Calculate Hourly Fuel Cost: Multiply the fuel consumption rate (L/hr) by the cost of diesel per liter.

Example:

• Fuel Consumption Rate: 0.2 L/kWh at 50% load, 0.3 L/kWh at 75% load, 0.4 L/kWh at 100% load.
• Diesel Cost: $1.50 per liter.

For a 10 kW generator running at 75% load:

$\text{Fuel Consumption}=10\text{kW}\times 0.3\text{L/kWh}=3\text{L/hr}$

Hourly Fuel Cost=3 L/hr×$1.50/L=$4.50/hr

2. Diesel Generator Maintenance Costs

Maintenance costs include regular servicing, oil changes, filter replacements, and potential repairs.

Steps to Calculate Maintenance Cost:

• Annual Maintenance Cost: Estimate based on the generator’s maintenance schedule and historical data.
• Divide by Annual Running Hours: To get the cost per hour.

Example:

• Annual Maintenance Cost: $1,000
• Annual Running Hours: 1,000 hours

Hourly Maintenance Cost=$1,000/1,000hours​=$1/hr

3. Diesel Generator Depreciation

Depreciation accounts for the reduction in the generator’s value over time.

Steps to Calculate Depreciation Cost:

• Initial Cost of Generator: Purchase price.
• Lifespan: Expected operational life in hours or years.
• Salvage Value: Estimated residual value at the end of its lifespan.

Example:

• Initial Cost: $10,000
• Lifespan: 10,000 hours
• Salvage Value: $1,000

Depreciation Cost per Hour=$10,000−$1,000​/10,000hours=$0.90/hr

 

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4. Other Operational Costs

Include costs such as labor, insurance, and any additional miscellaneous expenses.

Example:

• Labor Cost: $0.50 per hour
• Insurance Cost: $200 per year / 1,000 hours = $0.20 per hour

Diesel Generator Total Working Cost

Add up all the components to get the total working cost per hour.

Example Calculation:

• Fuel Cost per Hour: $4.50
• Maintenance Cost per Hour: $1.00
• Depreciation Cost per Hour: $0.90
• Other Operational Costs per Hour: $0.70 ($0.50 labor + $0.20 insurance)

𝙏𝙤𝙩𝙖𝙡 𝘿𝙞𝙚𝙨𝙚𝙡 𝙂𝙚𝙣𝙚𝙧𝙖𝙩𝙤𝙧 𝙒𝙤𝙧𝙠𝙞𝙣𝙜 𝘾𝙤𝙨𝙩 𝙥𝙚𝙧 𝙃𝙤𝙪𝙧=$4.50+$1.00+$0.90+$0.70=$7.10/𝙝𝙧

Summary

The working cost of a diesel generator includes:

1. Fuel Costs: Dependent on consumption rate and fuel price.
2. Maintenance Costs: Regular servicing and parts replacement.
3. Depreciation Costs: Reduction in value over operational life.
4. Other Costs: Labor, insurance, and miscellaneous expenses.

Using the provided example, the total working cost for the 10 kW generator running at 75% load is $7.10 per hour. Adjust these calculations based on your specific generator’s specifications, local diesel prices, and operational factors.