How to Choose the Right Size of Diesel Generator for Your Business

How to Choose the Right Size of Diesel Generator for Your Business

Pakistan is an energy starved country. Despite high prices, uninterrupted electric supply is not ensured. Outages and fluctuations are not just irritating, but quite detrimental to the electrical equipment, and disrupts the production cycle at small and medium industrial units as well as large scale industries. To deal with this situation, businesses opt for their own generation using diesel generators.

What is a Diesel Generator

Diesel generators are devices that convert the chemical energy of diesel fuel into electrical energy. They are widely used as backup power sources in case of power failures or grid instability. However, choosing the right size of diesel generator for your business is not a simple task. There are many factors to consider, such as the power demand, the load characteristics, the fuel consumption, the noise level, the maintenance cost, and the environmental impact.

In this blog post, I will explain in detail how to choose the right size of diesel generator for your business:

Determine the power demand of your business

This is the amount of electricity that your business needs to operate normally. You can calculate the power demand by adding up the wattage of all the appliances and equipment that you use in your business, such as lights, fans, computers, printers, machines, etc. You can find the wattage of each device on its label or manual.

Alternatively, you can use a power meter to measure the actual power consumption of your devices. You should also consider the peak demand, which is the maximum power that your business may need at any given time, such as during start-up or heavy usage. The peak demand is usually higher than the average demand, and it determines the maximum capacity of the generator that you need.

Choose the type of load that your business has

The load is the nature of the electrical devices that you use in your business, and it affects the performance and efficiency of the generator.

There are three types of load: resistive, inductive, and capacitive. Resistive load is the simplest type of load, and it consists of devices that have a constant and stable power consumption, such as lights, heaters, and kettles.

Inductive load is the most common type of load, and it consists of devices that have a variable and fluctuating power consumption, such as motors, pumps, compressors, and refrigerators.

Capacitive load is the rarest type of load, and it consists of devices that store electrical energy, such as batteries, capacitors, and transformers.

Each type of load has a different power factor, which is the ratio of the real power (the power that does the work) to the apparent power (the power that the generator supplies). The power factor ranges from 0 to 1, and the higher the power factor, the more efficient the generator is. Resistive load has a power factor of 1, inductive load has a power factor of 0.8, and capacitive load has a power factor of 0.6.

You should choose a generator that matches the type and power factor of your load, or use a power factor correction device to improve the efficiency of the generator.

Calculate the required size of the generator

The size of the generator is measured in kilowatts (kW), which is the unit of power. The required size of the generator depends on the power demand and the power factor of your load. You can use the following formula to calculate the required size of the generator:

Required size of generator (kW) = Power demand (kW) / Power factor

For example, if your business has a power demand of 10 kW and an inductive load with a power factor of 0.8, then the required size of the generator is:

Required size of generator (kW) = 10 / 0.8 = 12.5 kW

You should always choose a generator that has a slightly higher capacity than the required size, to account for any future expansion or unexpected surges in power demand. You should also avoid overloading the generator, as it can damage the generator and reduce its lifespan.

Compare the fuel consumption of different generators

The fuel consumption of a generator is the amount of diesel fuel that the generator uses to produce a certain amount of electricity. The fuel consumption of a generator depends on the size, efficiency, and load of the generator. The fuel consumption of a generator is usually expressed in liters per hour (L/h) or gallons per hour (GPH). You can compare the fuel consumption of different generators by using the following formula:

Fuel consumption (L/h or GPH) = Size of generator (kW) x Load factor x Specific fuel consumption

The load factor is the percentage of the generator’s capacity that is actually used, and it ranges from 0 to 1. The specific fuel consumption is the amount of fuel that the generator uses to produce one kilowatt-hour of electricity, and it varies depending on the type and quality of the generator.

You can find the specific fuel consumption of different generators on their specifications or manuals. You should choose a generator that has a low fuel consumption, as it will save you money and reduce the environmental impact of your business.

Consider the noise level of the generator

The noise level of a generator is the amount of sound that the generator produces when it is running. The noise level of a generator depends on the size, design, and location of the generator. The noise level of a generator is usually measured in decibels (dB), which is the unit of sound intensity.

The noise level of a generator can range from 60 dB to 120 dB, depending on the type and quality of the generator. You can compare the noise level of different generators by using a sound level meter or by referring to their specifications or manuals. You should choose a generator that has a low noise level, as it will reduce the disturbance and annoyance to you, your employees, your customers, and your neighbors. You should also install the generator in a well-ventilated and isolated area, and use soundproofing materials or enclosures to minimize the noise.

Evaluate the maintenance cost of the generator

The maintenance cost of a generator is the amount of money that you need to spend to keep the generator in good working condition. The maintenance cost of a generator depends on the frequency, quality, and type of the maintenance that the generator requires.

The maintenance of a generator usually involves checking, cleaning, replacing, and repairing the various parts and components of the generator, such as the filters, oil, spark plugs, belts, batteries, etc. You can estimate the maintenance cost of a generator by using the following formula:

Maintenance cost (per year) = Number of hours of operation (per year) x Maintenance rate (per hour)

The number of hours of operation is the amount of time that the generator runs in a year, and it depends on the power demand and the availability of the grid. The maintenance rate is the amount of money that you need to spend to maintain one hour of operation of the generator, and it varies depending on the type and quality of the generator and the service provider.

You can find the maintenance rate of different generators on their specifications or manuals, or by contacting the manufacturer or the dealer. You should choose a generator that has a low maintenance cost, as it will reduce the operational expenses and increase the reliability of your business. You can contact RM Services, a reliable name in energy efficient diesel generators, to choose the right equipment for your business.

By following these steps, you can choose the right size of diesel generator for your business, and enjoy the benefits of having a reliable and efficient backup power source. However, you should also remember that diesel generators are not the only option for your business. There are other alternatives, such as solar panels, wind turbines, batteries, or hybrid systems, that can provide you with clean and renewable energy, and reduce your dependence on fossil fuels. You should explore these options as well, and compare their advantages and disadvantages with diesel generators, before making your final decision.

Leave a Reply

Your email address will not be published. Required fields are marked *