Generators rated at 12,000 W or more
A generator with 12,000 watts or more is a high-powered unit: ideal for large homes, construction sites, industrial applications, agriculture, and critical backup power—when you need plenty of power for entire facilities and heavy machinery.
In this category, Genergy offers two options: high-power gasoline inverter generators (13 to 19 kW, with remote start, ATS, and solar backup) and the GDS line of diesel generator sets (20 to 358 kVA) for continuous and intensive use. We’re here to help you choose.
- 13–19 kW gasolineinverter
- 20 – 358 kVA dieselGDS
- Single-phase / 230Vand 400V
- ATS · SOLAutomatic Backup
Genergy's In-House Manufacturing and After-Sales Service · 2026 Catalog
What is a generator with a capacity of 12,000 W or more?
This is a high-power generator, designed for situations where 12 kW isn't enough: to power entire facilities, heavy machinery, large homes, or to provide backup for critical systems. At this power level and above, the choice between gasoline and diesel is key, depending on the application.
High-power inverter gasoline generators (Bali, Izoard, Stelvio, Borneo, 13 to 19 kW) are portable, provide stable power, and offer remote start, automatic (ATS), and solar backup options; they are ideal for powerful backup power and non-continuous use. GDS diesel generator sets (20 to 358 kVA) are designed for continuous and intensive use, offering long runtime and lower hourly fuel consumption, and are available in single-phase and three-phase versions. Below you’ll find the high-capacity gasoline models and a selection from the diesel range; full details on the latter are available on their respective product pages.
Generator models rated at 12,000 W or more
Filter by technology: high-power inverter gasoline (13–19 kW, portable) or GDS diesel (20–358 kVA, continuous duty).
Gasoline or diesel for high power?
For units rated at 12 kW or higher, the choice between an inverter gasoline generator and a GDS diesel generator depends primarily on how many hours and how frequently you plan to use the equipment.
| If you need… | Inverter Gasoline (13–19 kW) | GDS Diesel (20–358 kVA) |
|---|---|---|
| Occasional use / backup | Ideal | Oversized for occasional use |
| Continuous and intensive use | Less suitable | The best option |
| Portability | Laptop | Fixed/Body-Mounted Equipment |
| Extended battery life | Okay, filling up with gas | Maximum, minimum hourly consumption |
| High power (>20 kW) | Up to ~19 kW | From 20 to 358 kVA |
| Steady current (electronics) | Yes, inverter | AVR Alternator |
| Automatic Start (ATS) | Yes (RC-SOL-ATS) | Yes, with an ATS frame |
Key Features of a 12,000-Watt or Higher Generator
Maximum power
From 13 kW (gasoline) to 358 kVA (diesel): power for entire facilities and heavy machinery.
Inverter Gasoline
Bali, Izoard, Stelvio, and Borneo: high-capacity portable power with stable current and remote start/ATS/solar capabilities.
Diesel GDS 1500 RPM
Continuous and intensive use, long battery life, and lower hourly power consumption, with a copper alternator and Deep Sea battery.
Single-phase and three-phase
Single-phase (230V) and three-phase (400V) options for industrial machinery.
Automatic Start (ATS)
Unattended backup: The system starts up on its own in the event of a network failure.
Solar Support (SOL)
Models compatible with inverters to support photovoltaic systems.
Soundproofed body
GDS diesel engines come soundproofed as standard to reduce noise.
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Manufacturer offering a warranty, in-house after-sales service, and direct replacement parts throughout Spain.
Features, Benefits, and Integrations
Features
- Generate power ranging from 13 kW to 358 kVA
- Powering entire facilities and heavy machinery
- Act as a primary or backup source (ATS)
- Supply single-phase (230V) or three-phase (400V) power
- Support for Solar Installations (SOL Models)
Benefits
- Plenty of power for the most demanding applications
- Gasoline: Powerful, Portable, and Versatile
- Diesel: Long Range and Low Fuel Consumption During Continuous Use
- Unattended Backup with ATS
- Manufacturer reliability with in-house after-sales service
Integrations
- ATS Panel/Function for Automatic Start-up
- Solar inverters (SOL models)
- Single-phase and three-phase industrial installations
- Heavy machinery and high-consumption equipment
- Scheduling and Remote Startup
Model Comparison
The large gasoline models and a range of GDS diesel models.
| Model | Power | Type | Extra |
|---|---|---|---|
| Bali RC-SOL-ATS | 13000 W | Inverter Gasoline | Remote · ATS · Solar |
| Izoard-S | 15000 W | Gasoline | IP67 |
| Stelvio-S | 18000 W | Gasoline | IP67 |
| Borneo RC-SOL-ATS | 19000 W | Inverter Gasoline | Remote · ATS · Solar |
| GDS20T | 20 kVA | Diesel | Three-phase · soundproofed |
| GDS50T | 47 kVA | Diesel | Three-phase · soundproofed |
| GDS90T | 94 kVA | Diesel | Three-phase · soundproofed |
| GDS130T | 127 kVA | Diesel | Three-phase · soundproofed |
| GDS200T | 204 kVA | Diesel | Three-phase · soundproofed |
| GDS350T | 358 kVA | Diesel | Three-phase · soundproofed |
Uses for a 12,000-watt generator or larger
Industry and Factories
Primary or backup power source for machinery and production lines.
Large-scale work
High power on-site without a permanent utility connection.
Large Homes and Estates
Full support for properties with high energy consumption.
Agriculture and Livestock
Pumping, irrigation, and high-consumption equipment.
Events and Festivals
High-demand lighting, sound, and climate control systems.
Critical support
Hospitals, data centers, and systems that cannot be shut down.
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Why Buy Your Generator from Genergy
- ✓Manufacturer, not a reseller. Genuine Genergy motor and in-house design, with internal quality control.
- ✓Gasoline and Diesel: High-power portable generators or continuous-duty diesel generators, all under one brand.
- ✓Total Warranty: Comprehensive coverage and direct support from the manufacturer.
- ✓In-house After-SalesService: Technical support and spare parts directly from Genergy.
- ✓Dealer Network: Retail locationsand consultation services throughout Spain.
- ✓Technical Advice: We help you determine the right size and choose between gasoline and diesel.
Frequently Asked Questions About Generators Rated at 12,000 W or More
What can a 12,000-watt generator or larger power?
Complete facilities, heavy machinery, large homes, or critical systems. With gasoline, you can reach up to ~19 kW in a portable format; with diesel, from 20 to 358 kVA for continuous and intensive use. The exact power output depends on consumption and startup peaks.
Inverter gasoline or GDS diesel?
The inverter gasoline generator (13–19 kW) is portable, versatile, and ideal for backup power and non-continuous use. The GDS diesel generator (20–358 kVA) is better suited for continuous and intensive use due to its longer runtime and lower hourly fuel consumption, and is the best option for power ratings above 20 kW.
How many kW is the kVA of the diesel engine?
kVA represents apparent power, and kW represents useful active power; with a power factor of 0.8, a 20 kVA unit provides about 16 kW. When sizing a system, what matters is the actual power consumption (kW) of the installation.
Single-phase or three-phase?
Three-phase power (400V) is used for industrial machinery and high-power equipment. The GDS diesel engines in this series are three-phase; the large gasoline engines are single-phase (230V). If you need a three-phase gasoline engine, please ask us about our other series.
Do they have automatic start-stop (ATS)?
Yes. The RC-SOL-ATS gasoline-powered generators (Bali, Borneo) and the GDS diesel generators (with ATS control panel) start automatically in the event of a power outage, providing unattended backup power.
Where can I see the entire diesel lineup?
Here is an example of a power rating chart. The complete diesel range (14, 20, 27, 47, 69, 94, 127, 158, 204, 275, 358 kVA) can be found on the pages for generator sets, industrial applications, 100 kVA, and residential use.
Do you offer a warranty and technical support?
Yes. Genergy is a manufacturer that offers a comprehensive warranty, its own after-sales service, direct replacement parts, and a network of distributors throughout Spain.
A representative selection from the diesel lineup; the catalog includes additional power ratings. The figures are approximate.
Learn more on the blog
Not sure which model to choose?
Tell us your power consumption, hours of use, and whether you need three-phase power, and our technical team will recommend either a high-power gasoline or GDS diesel generator, properly sized for your needs. Genergy Total Warranty and in-house after-sales service.