40kVA Generators

Standby and prime power for data centres, hospitals, manufacturing and process-critical sites across the South. Supplied, installed, commissioned and maintained by our own engineers.

  • Turnkey supply, installation & commissioning
  • On-site load bank testing & compliance
  • Rapid emergency response & planned maintenance
Get a quote in 24 hours
Tell us your application and we'll come back with sizing advice and a price — usually same working day.
No obligation · Your details go straight to our generator team
Why Specify Solent Power

One team, from sizing to standby

We don't just sell the set. We size it to your load, install and commission it, prove it under load, and keep it running — so accountability sits in one place.
Turnkey Delivery
Supply, mechanical & electrical install, fuel systems and commissioning handled inhouse.
Load bank tested
On-site resistive load bank testing to verify performance and meet compliance requirements.
Rapid Response
Field engineers on call for breakdowns and emergency temporary power when you can't be down.
Planned Maintenance
Service contracts and UPS support to keep critical power resilient year-round.
Diesel Generators for any application

Choose your set, or let us spec it

A selection from our range of 40kVA Generators. Not sure which suits your load profile? Send the form above and an engineer will recommend the right unit.
Sizing help

NOT SURE WHAT SIZE YOU
NEED?

Oversizing wastes capital; undersizing risks your site. Tell us your critical load and we'll size it properly — no charge, no obligation.
02381 550144
Talk to an engineer

40kVA Diesel Generators For Sale

Looking for a cost-effective solution to cover all of your prime and standby power needs? Solent Power offers a variety of 40kVA diesel generators from the most reputable manufacturers. With models from Himoinsa, CAT and Perkins Engine, finding the right power supply is easier than ever.

Why choose a 40kVA generator?

40kVA generators are the perfect compromise between lower-power generators that might offer less flexibility and the much more expensive high-powered diesel generators. They have numerous benefits and can serve your commercial or residential needs for years to come.

Versatility

Whether you create products, serve customers or provide services, a fully functional work area is central to ensuring your business remains operational. Whether for prime or temporary power, 40kVA generators provide ongoing and consistent performance.

These generators will power any construction site and ensure you can use machinery, even when working off the grid.

Convenience

Investing in a generator allows you to access a consistent power supply conveniently. These generators integrate seamlessly with your commercial or residential premises, regardless of the location. Better still, they have lower fuel consumption than gasoline.

Affordability

With their lower fuel consumption, diesel generators are also ideal for reducing emissions and protecting your bank balance. Once you’ve made the initial investment, the prices associated with running diesel generators are much lower than many other options.

Shopping with Solent Power gives you access to high-quality generators

With their energy efficiency and practicality, generators are one product that guarantees nothing holds your business back. Solent Power is an authorised distributor of 40kVA generator models, and our selection includes the Himoinsa single-phase generator.

With cooling and noise-reducing features, our generators are built to last. We also offer unparalleled customer support and help you make the most of your 40kVA generator, with diesel generator installation and servicing as optional extras.

Please feel free to contact us today if you’d like advice.

40kVA Generators – common questions

FAQ

What is the fuel consumption of a 40 kVA generator per hour?

A 40 kVA generator’s fuel consumption per hour depends on the load you’re running it at. A 100% load will consume between 8-10 litres of fuel hourly, while 75% loads will burn around 6-7 litres. If the generator runs at 50% capacity, it will consume around 4-5 litres of electricity per hour.

However, these numbers depend on the generator’s age, level of maintenance and the quality of your fuel.

What is the maximum load for a 40 kVA generator?

Your generator’s maximum load depends on its power factor. Most generators have power factors of 0.8, which means a 40 kVA model will have a maximum recommended load of 32 kW.

Running the generator at total capacity can cause issues, including the need for early repairs and replacements.

Where can I use a 40 kVA diesel generator?

While a 40 kVA diesel generator isn’t the most powerful model available, it still offers a variety of benefits and can offer prime and backup power in multiple settings, including:

  • Off-grid construction sites.
  • Small offices and retail stores.
  • Farming operations.
  • Residential properties.
  • Small factories and manufacturing businesses.

Get your 40kVA Generator quote

Tell us your load and timescale — we'll come back with the right set and a price, usually the same working day.

Solent Power Ltd (Company Number 12622565) is a company registered in England and Wales. Our registered office is located at Station yard, Bowes Hill, Rowlands Castle PO9 6BP. VAT No. 363504018

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