Garments Factory Power Cost Estimator
Formula for Garments Factory Power Cost Estimator
To estimate the monthly power cost for a garments factory, you can use this formula:
Power Cost=Total Power Consumption (kW)×Operating Hours per Day×Working Days per Month×Electricity Rate per kW
Where:
- Total Power Consumption (kW) = Sum of power ratings of all machines and equipment running simultaneously.
- Operating Hours per Day = Number of hours the factory operates each day.
- Working Days per Month = Number of working days in the month.
- Electricity Rate per kWh = Cost of electricity per kilowatt-hour (Tk/kWh or your local currency).
Table of Contents
What Is Power Cost in a Garments Factory?
Power cost means the amount of money paid for electricity used in the factory. Garments factories use machines like sewing machines, irons, blowers, and lighting. These machines consume electric power. Factory owners must pay for this power according to their electricity tariff.

Why Calculate Power Cost?
Calculating power cost helps in budgeting factory expenses. It allows factory owners to track and control energy usage. If the power cost stays high, it can reduce factory profits. An accurate estimate helps plan for electricity bills and saves money.
Step-by-Step Calculation Process
1. Identify Total Power Consumption
First, list all electrical machines in the factory. Find the power rating of each machine in kilowatts (kW). Add all ratings to get the total power consumption. For example, if sewing machines use 50 kW and lighting uses 20 kW, the total is 70 kW.
2. Determine Operating Hours
Next, note how many hours the factory runs machines daily. For example, 10 hours per day.
3. Count Working Days
Calculate how many days the factory operates each month. Typically, garments factories work 25 to 26 days a month.
4. Know the Electricity Rate
Find out the electricity cost per kilowatt-hour from the utility provider. In Bangladesh, this rate varies but often stays near 10 Tk per kWh.
Example Calculation
Suppose a factory has a total power consumption of 100 kW. It runs 10 hours per day and works 26 days a month. The electricity rate is 10 Tk per kWh.
Calculation:
100 kW × 10 hours/day × 26 days/month × 10 Tk/kWh
= 260,000 Tk per month
This amount is the estimated monthly power cost.
Factors Affecting Power Cost in Garments Factories
Machine Efficiency
Older machines may use more electricity. Using energy-efficient machines reduces power consumption.
Factory Operating Hours
Longer operation hours increase power costs. Optimizing work hours can cut expenses.
Power Factor
Low power factor causes electricity loss and higher bills. Factories should maintain a good power factor.
Peak Hour Usage
Using power during peak tariff hours can increase the cost. Shifting heavy loads to off-peak hours helps reduce bills.
Tips to Reduce Power Cost
Use Energy-Efficient Equipment
Replace old machines with energy-saving ones. This lowers power consumption.
Regular Maintenance
Keep machines in good condition. Well-maintained machines work efficiently.
Optimize Operating Hours
Schedule production to avoid overtime. Keep machines off when not needed.
Install Power Factor Correction Devices
These devices improve power factor and reduce electricity losses.
Use LED Lighting
Switch from traditional bulbs to LED lights. LEDs consume less power.
Benefits of Using a Power Cost Estimator Calculator
- Quick cost calculation based on real data
- Easy to adjust values for different scenarios
- Helps in planning budgets accurately
- Enables comparison between different factories or periods
Conclusion
Garments factory power cost estimation is essential for effective factory management. Using a simple formula and calculator helps managers track electricity expenses. Reducing power cost improves factory profit and sustainability. Factory owners should calculate power cost regularly and take steps to save energy.
