Which Generator?

Which Generator?

Posted by Pressure Pump Solutions Ltd. on 10th Nov 2021

Diesel & Petrol Generators

Pressure Pump Solutions has a large selection of new electrical generators and alternators for a variety of uses, including efficient generators for when you need electricity without access to the mains or backup power if an outage occurs. Our models range from heavy duty petrol or diesel units right for emergency situations to smaller portable models ideal for camping and caravanning.

Hyundai DHY6000SE Generator

What Size Generator Do I Need to Power My House?

You can run even the most vital domestic equipment, such as a refrigerator, freezer, well pump, and lighting circuits, with a generator rated at 5,000 to 7,500 watts. All these gadgets may be powered by a 7500-watt generator at the same time. A 3000-4000-watt generator will suffice for a Camper Van/Caravan.

However, to be certain of what size generator must power a house, you should decide the exact wattage of your household appliances. Watts or amps are typically shown on their labels.

Generators fuelled by petrol or diesel can be highly beneficial in emergency situations where power outages have been caused by storms or floods. Tens of thousands of DIY and industrial applications are also available. We have the perfect generator for your needs, whether you need a powerful industrial generator for a construction site or a small portable generator for a camping vacation we are sure to have it.

Our portable generators are light and portable, but they supply plenty of power. We supply a variety of diesel generators that produce the greatest energy while using the least amount of fuel and are ideal for scenarios requiring a big volume of fuel to be carried (since diesel is less combustible than petrol). Given the reduced cost of this fuel and the fact that you may already be utilising it for other purposes, employing one of our petrol generators makes sense in many circumstances.

Whether you enjoy DIY and want to power tools, go camping and want to power those digital gadgets while away, or want to back up your home or business in case of a power outage.

What to Look for in a Generator

Use in the home or on the job - Some generators are intended for recreational or hobbyist usage alone, while others are intended for commercial purpose. These are intended for use in workshops as well as commercial settings.

Wattage This is an important factor to consider before buying; it is the amount of electricity that the generator can create when turned on. You must know the total number of watts you wish to power. 


Equipment - You must know what types of equipment you wish to power. For example, if you wish to power sensitive equipment such as PC/laptops or televisions, you may need an inverter generator.

Fuel type - Yes, you have options for what type of fuels your new generator can use. Common fuels include petrol, diesel, LPG, and some even supply a dual fuel choice that can run on either petrol or LPG.


Varying electrical applications have highly different power requirements, so it is critical to understand each one. TV sets, stoves, kettles, and filament lights, for example, have resistive loads, which means that their start-up and operating currents are nearly identical - and as shown on the manufactured description plate. Choosing the proper generator can appear to be a daunting undertaking. However, in just a few simple steps, you may efficiently and confidently decide and select which generator is best for you.

Single Phase Diesel Generator

Decide the equipment and appliances you want to use with your generator.

Decide the amount of power necessary for each item (see appliance data plate i.e.: watts of appliance) below.

Add the needed Watts for each item that will be running at the same time. Allow the appliance's motor to start as well.

Select a generator with rated watts that equal or surpass this total power.

Standby/backup or specialty generators - These days, standby or backup generators are quite popular. Whether you want to secure your house, workplace, or a large factory, Pressure Pump Solutions can deliver a suitable unit for your needs. We also have options where the generator will run on its own.

It is critical to decide how much power you will need to power the appliances. The electrical equipment is labelled with individual watts. Some devices have extra starting watts that should be added to the overall wattage. Multiplying the individual wattage by 3 yields the beginning watts. Keep in mind that if your expected total wattage is 6000 watts, you should get a 6 KW generator. The KVA of the generator should be at least 20% more than the projected power.

To give you an idea of normal watts, here are several appliances and their approximate watts. However, you will need to properly examine your residential or commercial needs. Look on the equipment labels, the watts are normally found there.

How do you calculate the size of a generator for a house?

Follow these three steps to decide the amount of generator needed to power your entire home:

Step 1: Make a list of all the appliances you want to power.

Step 2: Decide the starting and running wattages of each item on your list.

Step 3: Compile the wattage.

Power Requirements

Electrical Appliance Estimated Watts

Water Heater: 3000W

Washing Machine: 4000W

Microwave: 1500W

Steam Iron: 1500W

Total Wattage: 10000W

10000W / 1000 = 10kw / 0.8 = 12.5kVA

After you've found the wattage, you'll need to find a generator that fulfils these specifications. Normally, generators are rated in KVA or KWs.

Simply divide the total wattage by 1000 to convert watts to KWs. To convert watts to KVA, however, first convert watts to KWs and then divide by 0.8, which is the power factor.


- To convert Watts (W) to Kilowatts (kW), divide by 1000; for example, 1000W Equals 1kW.

– To convert Kilowatts (kW) to Kilovolt-amperes (kVA), divide by 0.8 – For example, 1000W = 1kW = 1.25kVA.

Generators that use inverters

Because these engines are more complicated, they will be more expensive than an equivalent output standard portable generator.

Inverter generators are also much quieter than typical portable generators. This is due in part to their encasement and in part to their ability to throttle up and down depending on the load needed. They also tend to have stronger exhaust systems to help with the reduced sound.

They use less fuel and emit less pollution.

Portable Generators

Typically run-on petrol and can be used both off and on your land. It should never be utilised in a confined environment. Several variants will be available with an electric start. They have a higher noise level than inverter generators and run at 3000rpm at a set speed. These are excellent for running jobs on the job site and power tools, among other things.

Standby or backup generators

Keep in mind when looking at these units that they will need to be installed and that they can start/stop automatically if a power outage occurs. They may also self-diagnose and will tell you when and what maintenance is needed. Some even give you text or email alerts to keep you up to date.

Typically runs on diesel red or white but other fuel options like natural gas or and LPG can be had. They come in sizes from 4kW upwards to very large units that can power tower blocks or large factories

These will come in both 3000rpm and 1500rpm, the 1500rpm units will enjoy longer lifespans with bigger service intervals.

Still, need some info? Then why not give us a call/email and let's go through your requirements

Please review: Pressure Pump Solutions Power Equipment Safety Information here

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