How to choose the right generator size for your use
If you are planning to buy an electric generator, the first question that will likely come to your mind is: How many kilowatts do I need?
This is indeed the most important question before buying a generator, because choosing a generator smaller than your needs may cause you problems in operation, and on the other hand, buying a generator much larger than your needs means a higher cost, larger size and weight without actually benefiting from its full capacity.
Whether you need the generator for the home, rest house, camp, workshop, or work site , choosing the right size depends mainly on the devices and equipment you are operating at the same time, as well as the nature of the use.
In this guide from Rawnak Store, we explain to you in a simple way how to calculate your needs and choose the right size generator for you.
What is meant by the size of the electric generator?
When we say "generator size," we don't just mean the external size or weight, but primarily its electrical power .
The generator's power is often expressed as:
- Wattage (W)
- kilowatt (kW)
- or kilovolt-ampere (kVA)
The greater the generator's power, the greater the amount of electrical loads it can operate, provided that the loads are compatible with the generator's specifications.
Ronaq Store offers a gasoline generator with an operating capacity of 3.2 kW and a maximum power of 3.5 kW.
Larger models are also available, such as a generator with an operating power of 8 kW and a maximum power of 8.5 kW.
Before you buy a generator, calculate your equipment first.
The most common mistake we see when choosing a generator is that the person selects the generator based on only one use.
For example, he says:
"I need the generator so I can run the air conditioner."
But when it's in use, it needs to run a refrigerator, lights, a television, a water pump, and other things.
This is where the real load begins to rise.
Therefore, take a piece of paper and write down all the devices and equipment that you expect to run on the generator .
for example:
Approximate power consumption: 300W lighting, 150W TV, 500W refrigerator, 100W router and small appliances, 100W fan, 800W power tools
Then add up the loads to determine your approximate needs.
But there is a very important point...
Some devices do not consume the same amount of power at startup.
Pay attention to the startup capability
Some devices, especially those containing electric motors, require higher power for moments when they are turned on.
like:
- Air conditioners.
- Refrigerators.
- Freezers.
- Water pumps.
- Compressors.
- Some electrical equipment.
- Some workshop tools.
This is called starting current or power .
This means that the device may be labeled as consuming 1000 watts during operation, but it requires a higher power at startup.
Therefore, do not calculate your needs by simply adding up the operational capacity.
How do I calculate the generator power I need?
Simply put, you can start this way:
Total operating loads + Starting power of motorized devices = Approximate generator requirement.
It is better to leave a reserve margin instead of running the generator at its maximum power continuously.
For example, if you calculate that your total need is about 3 kilowatts, it does not necessarily mean that a 3 kilowatt generator is the right choice right away.
You may need a higher-capacity generator depending on the nature of the loads and starting capabilities.
What is the difference between operational capacity and maximum capacity?
This is a very important point when comparing generators.
Some generators have one number for operating power and another number for maximum power.
For example, the SCONA BL4000 gasoline generator located in Ronaq store has an operating capacity of 3.2 kW and a maximum power of 3.5 kW .
The SCONA BL8000 generator has an operating capacity of 6.5 kW and a maximum power of 7 kW .
As for the BL10000 generator, its operating capacity is 8 kilowatts and its maximum capacity is 8.5 kilowatts.
Okay, what number should I rely on?
When using continuously, focus primarily on the operating power or Rated/Running Power and not just the higher number written on the generator.
Maximum power is important for some start-up needs and temporary loads, but it does not mean that the generator is designed to run that maximum load continuously.
A simple example of choosing a generator
Let's assume you need a generator for a break, and you want to run it:
- refrigerator.
- lighting.
- television.
- Router.
- a fan.
- Some small devices.
Its total consumption during operation was approximately 2 kilowatts .
Here's what we recommend: choose a 2 kW generator exactly, without looking at its starting capabilities.
You can look for a generator in a higher range than your operational needs, such as a 2.2 kW generator if the loads are suitable for its specifications, or move to a higher category if you have devices with a high starting current.
Our products include the SCONA BL2600 generator with an operating power of 2 kW and a maximum power of 2.2 kW.
What size generator is suitable for home use?
There is no single number that suits all households because the needs of each household are different.
But generally, before choosing a generator, determine what things you want to run during power outages.
for example:
If your goal is to run the basics
like:
- Lighting.
- Television.
- The router.
- The refrigerator.
- Mobile phone chargers.
- Some small devices.
Therefore, you need less power than someone who wants to run a number of air conditioners and large appliances at the same time.
If you want to run more devices
If you want to add:
- air conditioner.
- Water pump.
- Freezer.
- Electrical tools.
You need to recalculate the loads and starting capacities, and you may need a larger generator.
Generator suitable for rest and camping
If you are using the generator at a campsite, rest stop, or road trip, there are additional important factors besides power.
The most important of them:
Weight + Ease of transport + Sound level + Fuel consumption + Operating time.
In these cases, an inverter generator may be a suitable option, especially if quietness is important.
Ronaq Store offers silent inverter generators, including models designed for use in trips, camps, and homes, such as the 3.2 kW A-iPower generator, in addition to other portable models.
Is a bigger generator always better?
no.
This is one of the points that many people overlook.
If your actual need is 2 or 3 kilowatts, that doesn't mean you need a 10-kilowatt generator.
The largest generator could mean:
- Higher purchase price.
- Heavier weight.
- Larger size.
- Higher fuel consumption in some conditions.
- Greater difficulty in transportation.
Therefore, it is better to choose a generator that covers your needs rather than choosing the biggest generator available.
What if I get a generator smaller than what I need?
Here you might encounter problems such as:
- The generator will disconnect when the load increases.
- Low voltage.
- Some devices are unable to start.
- Increased pressure on the generator.
- High temperature.
- Reduced operating efficiency.
- Potential for damage if the generator is used outside its operating limits.
That's why you shouldn't try to save on price at the expense of choosing the right capacity.
How many kilowatts do I need for the workshop?
Workshops differ significantly from home use.
Because the workshop might contain:
- rocket.
- Drill.
- Compressor.
- Welding machine.
- a saw.
- pump.
- Other electrical equipment.
The most important point here is that some equipment has a high starting current .
Therefore, do not rely solely on the sum of the numbers written on the devices.
If the workshop uses a welding machine, compressor, or equipment with electric motors, it is best to calculate the loads more accurately before determining the generator's capacity.
3.5 kW generator: Who is it suitable for?
Among the models available at Ronaq store is the SCONA BL4000 gasoline generator with an operating power of 3.2 kW and a maximum power of 3.5 kW. It operates at 220 volts and a frequency of 60 Hz and comes with a 15-liter fuel tank, wheels, and a handle for transportation.
Such a category may be suitable for some home, field and light workshop uses, but determining its suitability depends on the devices that will operate it.
When do I need a 7 or 8.5 kW generator?
If the loads increase or you need to run more equipment at the same time, move to higher categories.
Ronaq Store offers the SCONA BL8000 generator with an operating capacity of 6.5 kW and a maximum power of 7 kW.
The SCONA BL10000 is also available with an operating power of 8 kW and a maximum power of 8.5 kW.
But again:
Don't choose 8.5 kW just because the number is bigger.
Calculate your needs first.
Should I choose a gasoline or diesel generator?
After determining the appropriate size, the second question comes: gasoline or diesel?
The choice depends on the nature of your use.
gasoline generator
It may be suitable for home, field, workshop, and some jobs that require a portable generator.
Ronaq Store offers a range of gasoline generators with different specifications and capacities, from small generators such as 1.2 kW to larger models.
diesel generator
It is widely used in applications that require strong and continuous operation, especially in some industrial and professional uses.
Among the products available in the store is the SCONA BLD7000 diesel generator with an operating capacity of 5 kW and a maximum power of 5.5 kW.
When is an inverter generator a suitable option?
If your needs require a quiet and portable generator, especially for trips, camping, or some household uses, an inverter generator may be suitable.
Ronaq Store offers silent inverter models, including generators designed for sensitive electronic devices such as computers, routers, and some household appliances, according to the specifications of each model.
Here, don't just look at ability; pay attention to:
- Noise level.
- the weight.
- Type of electrical wave.
- Runtime.
- Fuel consumption.
- Available exits.
How to choose a generator in 5 steps?
If you want the shortcut, follow these steps:
Step one: Write down the devices
Write down each device you intend to use.
Step two: Record the consumption of each device
See the label on the device or the user manual to find out the capabilities.
Step three: Calculate the total loads
Add up the power consumption of devices that can operate at the same time.
Step four: Calculate the startup loads
Especially for air conditioners, refrigerators, pumps, compressors and equipment containing motors.
Step five: Choose a generator with a suitable margin.
Do not make your needs equal to the generator's operating capacity; leave a suitable margin according to the nature of the loads.
A quick table to help you identify the category
What should you consider? Usage: Weight, quiet operation, ease of transport; Camping and travel; Total load and starting capacity; Essential household appliances; Air conditioners and motorized appliances; Electrical equipment break and starting current; Small workshop; Power, operating hours, transport; Work site; Continuous load and starting capacity; Heavy equipment; Choosing a generator suitable for the required electrical conditions; Sensitive electronic devices
This table is for initial guidance only and is not a substitute for calculating actual loads and reviewing the specifications of the equipment and generator.
Mistakes to avoid when buying a generator
1. Do not rely on the phrase "maximum capacity".
Look at the generator's operational capacity, not just its maximum capacity.
2. Do not collect watts and ignore startup.
The air conditioner or pump may require higher power when operating.
3. Don't buy the biggest generator just because it's more powerful.
Excessive force does not always mean it is the right choice.
4. Don't forget where to use it.
If the generator is for the camp, weight and sound are important.
If it is for a workshop, then priority may be given to operational capacity and load-bearing capacity.
5. Do not neglect maintenance
Even the best generator needs regular maintenance, oil and filter changes, fuel and connection checks according to the manufacturer's instructions.
One last piece of advice before buying a generator
If you are torn between more than one generator, don't just compare the price.
compare:
Operating capacity + Maximum capacity + Fuel type + Fuel consumption + Tank capacity + Operating time + Noise level + Weight + Ease of transport + Outlets + Warranty and maintenance.
Then see which generator matches your usage.
At Rawnak store, a variety of generators are available, including gasoline, diesel, and inverter generators, with different capacities to suit home, field, workshop, and other uses.
the important
Choosing the right size generator isn't just about looking at the kilowatt number and buying.
The best approach starts with your actual needs:
What devices will it run on?
What is its total consumption?
Does it have a high starting current?
How many hours do you use the generator?
Where do you use it?
Do you need gasoline, diesel, or an inverter?
After you answer these questions, you can better determine the category that is right for you.
If you are looking for a gasoline, diesel, or inverter generator, you can browse the range of generators available at Rawnak Store and compare specifications and capacities before choosing the right generator for your use.
Middle East Elegance — Equipment, tools and solutions for various business needs.