
Generator is a type of machine that converts mechanical energy into electrical energy. As a result, when there is no electricity in the grid, it can be used to generate electricity like a power grid. It can be used in homes, businesses, large industrial factories, and construction sites. But we do not know about their types and how they actually work.
What is a generator?
Michael Faraday invented the generator based on the principle of electromagnetic induction. The generator's engine mainly generates mechanical energy, which is then converted into electrical energy by the generator's alternator. Its basic function is to supply electricity to lights, fans, and other electronic devices in your home, business, and industry. Generators are widely used as backup power in areas prone to load shedding.
Types of Generators
Depending on where you need it and what you will use it for, there are different types of generators in Bangladesh. Besides, the types of generators vary according to power source, fuel type, rated power, size, efficiency, etc. The generators commonly available in Bangladesh are -
- Mini Generator
- Diesel Generator
- Gas Generator
- Solar Generator
- Hybrid Generator
How generators work by type
1. How Mini Generator works

Mini generator is made of a small internal fuel engine. It usually uses gasoline as fuel. This engine uses gasoline to generate mechanical energy, which is then converted into electrical energy through an alternator or dynamo. Later, the generated electricity can be used in other small electronic devices, including lights, fans, and sound systems. Since mini generators are usually made in a compact size and portable design, they are good for use in small offices, businesses, and even camping and outdoor gatherings. You can buy mini generator from BDStall.
2. How Diesel Generator works

Diesel generator uses diesel as fuel to power an internal combustion engine. This engine burns diesel to generate heat and mechanical energy and sends it to the generator's alternator. The alternator then converts this mechanical energy into electrical energy, which is used to supply power to various devices. Diesel generators are well known for being efficient, durable, and reliably supplying power for a long time. This type of generator is mainly used as a heavy-duty machine in residential buildings, industrial factories, hospitals, and other large institutions. Moreover, since diesel is cheaper than other fuels, this generator is quite economical in the long run. Besides, you can know the price and details of diesel generator on BDStall.
3. How Gas Generator Works

Gasoline generators use natural gas or propane as fuel in an internal combustion engine. This combustion process generates mechanical energy, which then powers the alternator. The alternator takes that mechanical energy and converts it into electrical energy, supplying power to various devices. This type of generator is compact in size and user-friendly in design, making it effective enough to meet short-term power needs. Gas generators are at the top of the list of choices for environmentally conscious users. Moreover, since natural gas is cheap and readily available in our country, gas generators are cost-effective for long-term use compared to diesel and petrol generators.
4.How Solar Generator Works

Solar generators actually convert sunlight into electricity through solar panels. This panel absorbs sunlight. Later, it converts it into DC electricity and stores it in a battery. Then, an inverter converts that DC power into AC power, which is suitable for running your home lights, fans, and other electronics. Solar generators are not only environmentally friendly and sustainable, but are also popular for off-grid living or as a backup power solution. Additionally, once installed, there is no additional cost to operate a solar generator, as the sunlight used as fuel is free.
5. How Hybrid Generator Works

Hybrid generator is a combination of two or more power sources. It uses a traditional fuel engine, such as diesel or petrol, and a renewable energy source, such as sunlight. The renewable energy mainly charges the battery, which provides electricity when power backup is needed. When the battery charge is low or additional power is needed, the fuel engine works. This type of generator not only increases efficiency but also reduces fuel consumption and emissions. Hybrid generators are suitable for use in both backup power and off-grid situations. It can provide uninterrupted power to homes and businesses for a long time.
Finally, it can be said that generators are essential tools for providing power in various situations. Whether you are looking for a small, portable unit for camping or a powerful generator for use in large establishments like factories, BDStall has almost every type of generator to suit your needs, from which you can compare generator prices in Bangladesh and specifications, so that you can make the right decision.
This article has been posted on: June 02, 2025