Small standby power
20 kVA diesel generator
Rated output: 20 kVA · Approx. 16 kW at PF 0.8 · Voltage: 400 V / 50 Hz
20 kVA diesel generators are a compact standby source for small commercial operations, agricultural buildings and building sites with low consumption. The 16 kW output (at PF 0.8) covers lighting, ventilation, smaller machinery and basic safety systems, and the compact footprint allows installation almost anywhere on site.
Duty types
PRP and ESP are not interchangeable
ESP — standby power
Emergency operation during grid outages at variable load. The rating applies to limited-hour standby duty, not continuous running.
PRP — prime power
Variable continuous operation as the main power source. A prime rating is lower than the standby rating of the same unit and is confirmed per engine and application.
Tell us the intended duty when you inquire — the required rating (PRP or ESP) for your 20 kVA project is confirmed during sizing, never assumed.
Typical use
Typical applications for a 20 kVA generator
Agriculture and farms
Backup for dairy farms, poultry houses and greenhouses — protecting livestock and crops during a grid outage.
Small commercial operations
Bakeries, restaurants and retail shops — backup for critical equipment during power cuts.
Building sites
Power for small plant, lighting and tools on sites without a grid connection.
Rental fleets
Robust trailer-mounted versions for short-term hire at events, festivals and emergency deployment.
Private homes and cabins
Backup for heating, pumps and basic loads at properties away from the grid.
Telecom sites
Backup for base stations, repeaters and small technical buildings.
Available brands
Manufacturers available at 20 kVA
AKSA
20–3000 kVAPrimary brand of ESKO Generator — authorised dealer for the Czech Republic and Slovakia; other brands are available depending on the project.
Ask about AKSA 20 kVAHimoinsa
6–3000 kVASpanish manufacturer with a strong presence in the EU; quiet executions, with Stage V available on selected models subject to model confirmation.
Ask about Himoinsa 20 kVAEnergy Gruppi
10–3000 kVAItalian manufacturer specialised in industrial generators for energy projects and critical infrastructure.
Ask about Energy Gruppi 20 kVAInmesol
10–2500 kVASpanish manufacturer of trailer-mounted and stationary generators for construction, rental and industry.
Ask about Inmesol 20 kVATechnical options
Typical configuration of a 20 kVA generator
Automatic start (ATS)
Available on suitable models: the generator starts automatically on a grid failure and shuts down safely when the grid returns — unattended operation agreed per project.
Trailer-mounted version
Road-homologated mobile version on a trailer chassis, easy to relocate even to remote sites.
Acoustic canopy
Low-noise canopied execution for installations in built-up areas or noise-sensitive operations; the exact sound level depends on the model.
Fuel tank options
Base tanks sized for around 8 hours at full output, extendable to longer autonomy depending on the model and the agreed configuration.
All options above are project variants depending on the selected model and agreed scope — they are not universal features of every unit. Tank autonomy, sound levels, monitoring interfaces, HVO compatibility and paralleling are confirmed for the specific configuration in your quotation. All units come with the manufacturer's warranty.
By application
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Frequently asked questions
20 kVA — common questions
Is a 20 kVA generator the right size for my project?
A 20 kVA rating corresponds to roughly 16 kW of usable output at a power factor of 0.8. Check the sum of the loads you must keep running during an outage — lighting, pumps, compressors and essential machinery — and allow a reserve for starting currents.
Is 20 kVA a standby (ESP) or prime (PRP) rating?
Both duty types exist in this power class, and the numbers are not interchangeable: an ESP (standby) rating applies to emergency operation during grid outages, while PRP (prime) applies to variable continuous operation. Always tell us the intended duty — the required rating (PRP or ESP) is confirmed during project sizing, never assumed.
How quickly can a 20 kVA generator be delivered?
The current stock list starts at 25 kVA ESP, so availability of a 20 kVA unit is confirmed individually. Where a unit is confirmed from warehouse stock, it can be dispatched within 48 hours after the order, conditions and payment are closed — a dispatch time, not a delivery-time promise.
Czech projects
Supply, design, commissioning or turnkey
For Czech customers we can deliver the generator alone, design the installation, commission it on a prepared site, or realize the project turnkey — with contracted service according to the agreed scope. The scope is clarified during consultation.
International
Direct sale, preferably EXW CZ/NL
International customers receive a direct generator sale, preferably EXW CZ/NL, with transport arranged individually. Installation and service abroad are confirmed individually per destination and model.
Availability and dispatch
Availability depends on the rating — the current stock list starts at 25 kVA ESP, and availability of the requested rating is confirmed in your quotation. Confirmed warehouse units can be dispatched within 48 hours after the order, conditions and payment are closed — a dispatch time, not a delivery-time promise. The current stock list covers models that are in stock or in transit.
Non-binding consultation
Ask about a 20 kVA generator
Describe your project — our engineers will verify the sizing, confirm the required PRP or ESP rating and prepare a technical proposal with a tailored quotation.