Grupos electrógenos 20 kVA
A 20 kVA generator set is a medium- to high-power diesel unit designed for backup and continuous power supply in workshops, small industrial facilities, farms, businesses, and large or rural homes.
Genergy's GDS diesel series, with a power range of approximately 20 kVA, ranges from 14 to 27 kVA and is available in single-phase (230V) and three-phase (400/230V) versions, featuring a 1500 RPM engine, a copper alternator, a Deep Sea controller, and automatic transfer switch (ATS) readiness.
- 14 – 27 kVAen torno a 20 kVA
- 1500 RPMmotor diésel
- Mono / Tri230V y 400/230V
- ATSarranque automático
Genergy's In-House Manufacturing and After-Sales Service · 2026 Catalog
What is a 20 kVA generator set?
A 20 kVA generator set is a medium-to-high-power diesel unit (with an effective output of around 16 kW) consisting of an engine and an alternator, capable of independently powering workshops, small industrial facilities, farms, or large homes. kVA refers to apparent power; the actual effective power in kW is slightly lower, depending on the power factor.
Funciona como fuente principal donde no llega la red o como respaldo que arranca automáticamente ante un fallo de suministro. En esta potencia, Genergy ofrece versiones monofásicas (230V) para instalaciones domésticas o de comercio y trifásicas (400/230V) para maquinaria, todas diésel a 1500 RPM para uso continuo e intensivo.
GDS 20 kVA Generator Sets
Diesel generators ranging from 14 to 27 kVA, soundproofed and equipped for automatic start-up. Choose the appropriate filter based on your installation (single-phase or three-phase).
How much power do you need?
Guideline. The exact power rating depends on the connected equipment, its startup peaks, and hours of use. Add up the power consumption and include a 20–30% margin. Tell us about your situation, and we’ll help you select the right equipment.
| Type of installation / use | Approximate power | GDS Models |
|---|---|---|
| Small workshop, retail space, large residence | 14 kVA | GDS14T 14 kVA |
| Small-scale industry, agriculture, broad support | 20 kVA | GDS20M (mono) · GDS20T (tri) |
| Facilities with high energy consumption and continuous use | 27 kVA | GDS27M (mono) · GDS27T (tri) |
Key Features
1,500 RPM diesel engine
Less wear, lower fuel consumption, and longer service life—ideal for continuous and intensive use.
Copper Alternator
Synchronous alternator with 100% copper windings and low distortion for stable current.
Deep Sea Controller
A control unit that monitors parameters, alerts users to anomalies, and protects the equipment.
ATS-Ready
Ready for automatic startup in the event of a power failure (requires a transfer switch).
Single-phase and three-phase
Single-phase (230V) and three-phase (400/230V) versions, depending on your installation.
Soundproofed body
Soundproof cabin that reduces noise and provides protection from the elements.
Solar-compatible
Inverter-compatible dry contact: functions as a photovoltaic backup generator.
Genergy Total Warranty
3-year warranty covering labor, transportation, and replacement parts, with in-house after-sales service.
Features, Benefits, and Integrations
Features
- Generate approximately 16 kW of continuous power
- Serve as the primary power source or as a backup in the event of a power outage
- Powering a workshop, machinery, or a large home
- Automatically restart after a power outage (with ATS panel)
- Supply single-phase (230V) or three-phase (400V) power
Benefits
- Electrical Continuity in Demanding Environments
- Long range and low diesel consumption at 1,500 RPM
- Consistent performance during long workdays
- Low noise level thanks to the bodywork
- Single-phase or three-phase option, depending on the application
Integrations
- ATS Transfer Panels for Automatic Start-up
- Solar inverters and photovoltaic systems (dry contact)
- Single-phase and three-phase systems
- Machinery, pumps, and medium- to high-consumption equipment
- Scheduled Timing and Remote Start via Signal
Model Comparison
The GDS diesel series with a capacity of around 20 kVA.
| Model | Power (kVA) | Power (kW) | Voltage | Phase |
|---|---|---|---|---|
| GDS14T | 14 kVA | 11 kW | 400/230V | Three-phase |
| GDS20M | 20 kVA | 16 kW | 230V | Single-phase |
| GDS20T | 20 kVA | 16 kW | 400/230V | Three-phase |
| GDS27M | 27 kVA | 22 kW | 230V | Single-phase |
| GDS27T | 27 kVA | 22 kW | 400/230V | Three-phase |
Uses of a 20 kVA Generator Set
Workshops and Stores
A reliable supply for machinery and professional use.
Small-scale industry
Primary or backup power source for medium- to high-power equipment.
Agriculture and Livestock
Pumping, irrigation, and equipment for remote farms and facilities.
Large, rural homes
Diesel backup power for properties with high energy consumption.
Construction and Building
Power on construction sites not connected to the grid.
Support with ATS
Automatic startup for systems that cannot be shut down.
Genergy Diesel Generators on Video
Videos of Genergy's GDS diesel series, including the installation of the GDS27T from this same series.
Why Buy Your Generator from Genergy
- ✓Manufacturer, not a reseller. Genuine Genergy motor and in-house design, with internal quality control.
- ✓Single-phase and three-phase20 kVA solutions for residential/commercial use and for machinery.
- ✓3-Year Comprehensive Warranty: Includeslabor, transportation, and replacement parts.
- ✓In-house After-Sales Service: Technical support and replacement parts directly from the manufacturer.
- ✓Dealer Network: Retail locationsand consultation services throughout Spain.
- ✓Technical Advice: We help you select the right equipment for your facility.
Frequently asked questions
What can a 20 kVA generator power?
It is a medium-to-high-power generator capable of powering a workshop, a small industrial facility, agricultural machinery, a business, or a large home, with multiple devices running at the same time. The exact amount depends on power consumption and the startup peaks of motors and compressors.
How many kW is 20 kVA?
kVA represents apparent power, and kW represents useful active power; with a power factor of 0.8, 20 kVA is equivalent to about 16 kW. When sizing a system, what matters is the actual power consumption (kW) of the installation.
Single-phase or three-phase?
Residential installations and many businesses use single-phase power (230V); industrial machinery typically requires three-phase power (400V). This product line offers both options at 20 and 27 kVA.
Why diesel at 1,500 RPM?
The diesel engine at 1,500 RPM operates at a lower speed: less vibration and wear, lower fuel consumption, and a longer service life. It is the ideal choice for continuous and intensive operation.
Do they have automatic start-stop (ATS)?
They are equipped for automatic startup in the event of a power outage via an ATS transfer switch, so they start up on their own during an outage and restore power within seconds.
Do I need more or less power?
Para respaldo doméstico más pequeño mira el grupo electrógeno para casa o el generador de 10 kVA; para industria de mayor consumo, el generador de 100 kVA o la gama industrial.
Do you offer a warranty and technical support?
Yes. Genergy is a manufacturer that offers a 3-year comprehensive warranty (covering labor, travel, and replacement parts), its own after-sales service, and a network of distributors throughout Spain.
The recommended power ratings are approximate and depend on each installation. The ATS panel may not be included, depending on the model.
Learn more on the blog
Not sure which model to choose?
Tell us your power consumption and whether your system is single-phase or three-phase, and our technical team will help you select the ideal 20 kVA generator set with the appropriate margin. Genergy Total Warranty and in-house after-sales service.