British Designed & Manufactured Diesel Generators

Perkins PWRBOX has quickly emerged as one of the largest and fastest-growing UK diesel generator manufacturers and suppliers with a strong local footprint and exporting to over 30 countries.

For nearly 35 years, we have accumulated a wealth of knowledge and trust as a generator designer and distributor. We offer reliable standard, bespoke and modular diesel generator sets. Our sole purpose is to fulfill your energy demand and provide you with a reliable power supply at a competitive price!

We design and manufacture our state-of-the-art award-winning diesel generators in the UK to comply with the highest levels of performance efficiency, customisability and cost flexibility. We specialise in Perkins Diesel Generators & Ship Globally

PPS Diesel Generator Manufacturing Process & Quality Control

Our UK manufacturing capacity offers a premium collection of products. PWRBOX covers every function of power generation ranging from generator ends and control panels to battery chargers and voltage regulators.

Replacement items for a range of phase generators such as diesel engines, control cable, power module, auto-synchronizer, exhaust systems, etc. can easily be sourced along with service kits.


We provide guaranteed delivery to your business place within 24 hours to maintain power supply for emergency use and avoid power failures. Prime Power Solution also hold large stocks of ATS panels also known as Automatic Transfer Switch/Automatic Transfer Function or AMF (Automatic Mains Failure Panel) in a lucrative price range. 

Your company can easily consult with our UK diesel generator service team of experienced engineers to get the necessary advice on design specifications of various generators for unique power applications.


As leading diesel generators supplier, Prime Power Solution can help you zero down on the right choice with minimal capital costs involved.


PWRBOX Diesel Generators

PWRBOX offers a range of elite generator engine brands like Perkins, Cummins, Lister Petter, Baudouin &  Doosan coupled to Leroy Somer, Mecc Alte, but mainly Stamford UK Sourced Alternators.

Engineered to meet internationally renowned UK manufacturing quality standards, our range of PWRBOX diesel-based power generators covers both three-phase and single-phase generator sets spanning an impressive 9 kVA up to 2000 kVA range.

Our custom-built PWRBOX generators may also be adapted for your specific design/power requirements. We consistently keep our brand new and used diesel generators in stock. 

If you are in urgent need of emergency generators, we can facilitate delivery within 24 hours (subject to availability and stock).

PWRBOX - Silent Diesel Generators

Whether you’re at home, office, or your workshop, a peaceful and pleasant ambience is the bedrock of productivity.

Now your standby backup diesel generator may keep the lights on during a power cut, but if it’s bombarding your ears with intrusive engine noise all throughout, then it means it’s solving one problem to create another.

Our range of standby diesel generators use the latest in sound attenuation technology to drastically cut down the engine noise levels thanks to their super silent canopy design.

The canopies of our emergency backup generators can easily withstand all types of climate conditions and environments.

So if you are seeking a source of reliable backup power with zero disturbances, then our brand range of silent diesel generators are right down your alley in both price and performance.

Prime Power Solution Supported Industries 2
Prime Power Solution Supported Industries

PWRBOX - Custom-Built Diesel Generators

Our business specialises in a range of off-grid power solutions for hundreds of challenging installations. This includes building sites, telecom stations, agriculture locations, event management, supermarkets, banks, ships, factories, large office complexes, data centers, schools, hospitals, tourist resorts or any other mobile applications.

We Specialise in PWRBOX Perkins Generators, Cummins Generators, Lister Petter Generators, Baudouin Generators, FPT Generators, Mitsubishi Generators &  Doosan Generators Built to very high specification for quality assurance.

Prime Power Solution Benefits

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Blinding Stability

The mark of a powerful PWRBOX diesel generator set is how effectively it can run under load in case of a power cut and voltage drop. We are known for our reliability in service and robust range of high-quality stock power generator designs. PWRBOX is firmly committed to offering a seamless end-to-end customer service experience.

24/7 Support

Once you have selected your PWRBOX diesel generator sizing, our service engineers will take care of the rest. Our goal is to set up the emergency power sources you deserve. 

Whether you seek delivery, installation, commissioning, maintenance or just looking for a generator, a time-efficient, hassle-free communication, and service experience is only a phone call away.

Extensive Warranty

PWRBOX offers an extensive worldwide manufacturing warranty.  It ranges from 12 to 24 to 36 months, depending on the engine brand to give our customers the peace of mind they deserve. PWRBOX ensures the robustness of our high-quality UK power generators is reinforced by responsibility in customer service to maximize the engine life of your diesel generator.


Visit Our Factory

If you want to see the PWRBOX power generators in person, feel free to reach out to us through phone or email for advice and making an appointment. A member of our UK staff will be more than happy to arrange a guided showroom tour.


Even a factory visit is possible to help you get the right business advice to select the right generator at reasonable prices. By Appointment Only!

UK Diesel Generators for Sale

British Quality | Reliability | Trust | Global Warranty

UK manufactured generators from PPS
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Whether your company prefers to buy in bulk through our lucrative quality PWRBOX diesel powered generators offers, or even to bid on tenders, PWRBOX is always equipped to adjust its services to align with your personal or business needs. 

We Specialise in PerkinsCumminsLister Petter, Baudouin, FPT, Mitsubishi &  Doosan Generators built to a very high specification for quality assurance. We use the very best UK Made Deepsea DSE Generator Controllers.

Its important to understand that Perkins do not manufacture generators, they are Engine manufacturers that supply engines for many applications, diesel generators being one of them.

Perkins Diesel Generator UK

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PWRBOX - Diesel Generator Fuel Tank Systems

PPS is Greater Manchester Chamber of Commerce 2017-2018 winner

Frequently Asked Questions

How many hours do diesel generators last?

The lifetime of a particular unit depends on the hours of operation rather than the years since purchase. While an average gasoline generator may only last around 1000 hours, most machines can easily last 30,000 hours without needing a major overhauling. Even if you use them for 4 hours a day, it will still take 14 years before you reach 20,000 hours.

What is the best diesel generator for home use?

The most popular diesel generators for homeowners are undoubtedly the ones that offer longer runtimes in tandem with lower running costs. They are also less volatile and safer than propane or gasoline-based generators. If you’re seeking a reliable home power backup solution, then you should opt for small kva gensets like 3.5kva, 7.5kva, 15kva etc., which are portable as well as silent.

How much is a diesel generator?

When it comes to purchasing long-term appliances like diesel generators, it’s always wiser to seek value for money over a low base price. You should consider the manufacturer, the capacity, and the wattage before you pick the right generator for the right purpose.

Can you refuel a generator while it running?

While it is vital to follow a regular maintenance schedule for your standby diesel generator and ensure it never completely runs out of fuel while it is under any load, you must always switch it off if you need to refuel it. Even though diesel fuel’s low volatility makes it difficult to ignite at normal environmental temperatures unlike gasoline and propane, the safest practice is to shut off the generator for the refuelling process.

Is running a generator cheaper than electricity?

In general, electricity from the grid is the default power source because of its significant cost efficiency. Diesel generators however, aren’t intended to be substitutes for grid power, but reliable back-ups that keep your operations running without missing a beat due to power failures or load shedding. They can be an invaluable investment as off-grid solutions in areas with limited access to grid power.

How much electricity does a diesel generator produce?

A general rule of thumb is that a genset will use 0.4 litre of diesel per kWh produced. Various electrical applications have very different power requirements, so it is essential to understand each particular need. You can simply list down all the electrical appliances that need to be powered in your home, office or workshop. Then, add up their total power consumption in Watts to determine what capacity fulfils your electricity demand.

How much diesel does a generator use per hour?

Keep in mind that fuel consumption will also vary based on variables such as brands, load, and climate. A generator load calculator may help with gathering more accurate data. To give you an idea of consumption, a 20 kilowatt unit will use about 1.6 gallons per hour running a full load. A 30 kilowatt unit will use about 2.9 gallons per hour also running a full load.

How efficient are diesel generators?

If we directly compare the volume of fuel needed to power a generator, diesel gen sets always have a leading edge in terms of fuel-efficiency compared to other fuels. However, the diesel generator efficiency is a collaborative outcome of the system’s load factor, capacity, engine design, ambient conditions, fuel control, cooling system, and operating speed. This efficiency may deviate during operation as it becomes further subjected to different load conditions, ambient conditions, and operational and maintenance practices.