800 kVA Generators for Sale
An 800kVA generator provides around 640kW of usable power – a capacity typically required by large industrial facilities, hospitals, data centres, and commercial developments needing robust standby power or prime power solutions.We stock 800kVA diesel generators from Cummins, Perkins, FG Wilson, and CAT, with units available for rapid dispatch across the UK. Choose from open-frame configurations for dedicated plant rooms or acoustically treated canopies for silent operation in noise-restricted areas.
800 kVA quick specifications: An 800 kVA diesel generator gives about 640 kW of prime power and around 704 kW on standby. At 400V three phase it supplies roughly 1155 amps per phase. Typical fuel use is about 88 to 160 litres an hour depending on load. Sets this size suit large data centres, utilities, heavy industry, critical infrastructure and major site power systems. New prices are typically around £78,000 to £125,000 ex VAT, although engine, alternator, canopy, controls and installation affect the final quote.
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800kVA Generators for Sale
If you’re in need of serious power, look no further than our wide range of 800kVA Generators. We have multiple 800kva Diesel Generators available and ready to be dispatched, so get in touch with our expert sales team for more information. We stock and can supply all major generator brands, including Perkins, FG Wilson, CAT and Cummins Generators.
What sectors rely on 800 kVA generators?
Sectors that rely on 800 kVA generators include mining, oil and gas, construction, and large-scale manufacturing. In mining and oil and gas, these generators provide power to remote operations where grid access is unavailable. In construction, they power heavy machinery, lighting, and temporary office facilities. In manufacturing, they ensure that production lines and critical systems continue to operate during power outages, minimising downtime and financial losses. For smaller industrial applications, a 500kVA or 600kVA generator may be sufficient, while larger operations often require 900kVA or 1000kVA generators.
How does an 800 kVA generator handle overload conditions?
An 800 kVA generator is equipped with built-in overload protection that automatically reduces output or shuts down the generator if the load exceeds its capacity. This prevents damage to the generator and connected equipment. It can also manage brief surges in demand, such as those caused by starting large motors, without compromising performance. Advanced control systems allow operators to monitor load levels and adjust as needed to avoid overloading. If your facility regularly experiences peak demands close to capacity, consider stepping up to a 1000kVA or 1250kVA generator for additional headroom.
How many kW is an 800 kVA generator?
At a typical 0.8 power factor, an 800 kVA generator provides about 640 kW of prime power. Standby power is commonly around 704 kW, but the exact rating should be checked on the chosen model’s datasheet.
How many amps does an 800 kVA generator supply?
At 400V three phase, an 800 kVA generator supplies about 1155 amps per phase. This is a guide only: a qualified electrician should confirm cable, switchgear and protection sizes for the installation.
How much fuel does an 800 kVA generator use per hour?
A diesel generator of this size typically uses about 88 to 160 litres an hour, depending on load. Treat this as a planning range rather than a model-specific figure and check the selected generator’s fuel-consumption curve for an exact estimate.
How much does an 800 kVA generator cost?
Indicative new prices are commonly around £78,000 to £125,000 ex VAT. Engine and alternator brand, acoustic canopy, control panel, fuel tank, delivery, commissioning and installation can all change the final quote.
What can an 800 kVA generator power?
This size is commonly used for large data centres, utilities, heavy industry, critical infrastructure and major site power systems. The right choice still depends on the total running load and the starting current of the largest motors or equipment.