Generators for Home Use
A home generator is a device that generates electricity independently to keep your home running during power outages, powering essential appliances (refrigerator, lights, heating, water pumps, alarms, or the router) without relying on the grid.
This GDS diesel generator series from Genergy (10 to 27 kVA, single-phase and three-phase) is designed for serious home backup: large homes, rural dwellings, farms, and vacation homes that require true autonomy and automatic transfer switching (ATS) in the event of prolonged power outages.
- 10–27 kVApower range
- Diesel, 1,500 RPM, long range
- Single-phase / 230Vand 400/230V
- ATSAutomatic Start
Genergy's In-House Manufacturing and After-Sales Service · 2026 Catalog
What is a home generator?
A home generator is a unit consisting of an engine and an alternator that produces electricity on its own, without relying on the power grid. Its main function is to provide backup power for the home: when the power goes out, it keeps essential appliances running (refrigerator and freezer, lighting, heating, water pump, alarm system, router, or your work-from-home computer) so that a power outage doesn’t bring you to a standstill.
The models in this line are diesel-powered at 1,500 RPM, designed to run for many hours with minimal wear and tear and a long runtime—ideal for extended power outages or for powering an entire home. Additionally, they are equipped for automatic start-up (ATS): they detect a power outage, start up on their own, and restore power in seconds, without you having to go out and turn anything on. If your power consumption is low or you’re looking for something portable, a gasoline or inverter generator might be a better fit for you (we’ve included a link to that option below).
GDS Home Generator Models
Diesel models ranging from 10 to 27 kVA. Most homes are single-phase (230 V); the three-phase versions (400/230 V) are intended for large homes or those with specialized machinery. Choose based on your setup.
How much power do you need for your home?
Guideline. Add up the power consumption of everything you want to run at once, and allow for startup spikes (pumps, air conditioning). If you're only looking for basic, portable backup power, a smaller gasoline or inverter generator might be enough: see generators for single-family homes.
| Type of housing / use | Approximate power | GDS Models |
|---|---|---|
| Home utilities (refrigerator, lights, router, alarm, heating) | 10 kVA | GDS10M · GDS10T |
| Average home with air conditioning or a water pump | 14 kVA | GDS14M · GDS14T |
| Large residence or country house with multiple devices running at the same time | 20 kVA | GDS20M · GDS20T |
| Country home or vacation home with high energy consumption or three-phase loads | 27 kVA | GDS27M · GDS27T |
Key Features
1,500 RPM diesel engine
GENERGY SGE Series motor at 1,500 RPM: less wear and tear, lower fuel consumption, and long runtime—ideal for long cuts and heavy-duty household use.
Soundproofed body
Soundproof cabin that significantly reduces noise: more comfortable and discreet in a residential area.
ATS-Ready
Ready for automatic startup in the event of a power outage (requires a transfer switch): starts up automatically when the power goes out and shuts down when it comes back on.
Copper Alternator
Synchronous alternator with 100% copper windings and voltage regulation: stable power for your appliances.
Deep Sea Controller
A control panel that monitors the equipment's parameters, alerts users to malfunctions, and protects the generator.
Cold start
Coolant heater and air preheater for easy starting, even in winter.
Solar-compatible
Dry contact compatible with solar inverters: functions as a backup generator for your photovoltaic system.
Genergy Total Warranty
3-year warranty covering labor, shipping, and replacement parts, with after-sales service provided directly by the manufacturer.
Features, Benefits, and Integrations
Features
- Providing Power to Your Home During a Power Outage
- Act as an automatic transfer switch (ATS) in the event of a power outage
- Power the refrigerator, heating, water pump, alarm, router…
- Operate autonomously in homes without a stable power grid
- Supply single-phase (230 V) or three-phase (400 V) power
Benefits
- Complete peace of mind: you'll never be without power
- Food Preservation, Home Safety, and Comfort
- Long diesel range for long cuts
- Quiet operation thanks to the bodywork
- Automatic startup—no action required on your part
Integrations
- ATS Transfer Panels for Automatic Start-up
- Single-phase and three-phase residential electrical systems
- Solar inverters and photovoltaic systems (dry contact)
- Water Pumps, HVAC, and Home Appliances
- Scheduled Timing and Remote Start via Signal
Model Comparison
At a glance: the entire GDS diesel line for residential use.
| Model | Power (kVA) | Power (kW) | Voltage | Phase |
|---|---|---|---|---|
| GDS10M | 10 kVA | 8 kW | 230V | Single-phase |
| GDS10T | 10 kVA | 8 kW | 400/230 V | Three-phase |
| GDS14M | 14 kVA | 11 kW | 230V | Single-phase |
| GDS14T | 14 kVA | 11 kW | 400/230 V | Three-phase |
| GDS20M | 20 kVA | 16 kW | 230V | Single-phase |
| GDS20T | 20 kVA | 16 kW | 400/230 V | Three-phase |
| GDS27M | 27 kVA | 22 kW | 230V | Single-phase |
| GDS27T | 27 kVA | 22 kW | 400/230 V | Three-phase |
Uses of a Home Generator Set
Prolonged power outages
Reliable backup power to keep your home running during extended power outages.
Rural Homes and Country Estates
Off-grid power where the grid is unstable or nonexistent.
Second Homes
Peace of mind and a guaranteed supply, even if you're not there all year round.
Water and Irrigation Pump
Stable power to run pumps and home irrigation systems.
Air Conditioning and Heating
Keep your home comfortable even if the power goes out in the middle of winter or summer.
Support for Solar Installation
Backup generator for your solar power system on days with no sun or when your batteries are low.
Genergy Diesel Generators on Video
Learn about how Genergy's GDS diesel series works and its benefits—the foundation of our home backup power systems.
Why Buy Your Generator from Genergy
- ✓Manufacturer, not a reseller. Genuine Genergy motor and proprietary design, with in-house quality control.
- ✓Soundproofed as Standard: Our diesel models come soundproofed as standard—more comfort at home at no extra cost.
- ✓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 home.
Frequently Asked Questions
What can a home generator power?
Lighting, refrigerator and freezer, heating, water pump, alarm system and cameras, router and remote work equipment, among others. How many devices you can connect at once depends on the power output of the unit; these models (10–27 kVA) are designed to provide backup power for an entire home.
How much power do I need for my home?
It depends on what you want to keep running at the same time. Add up the power consumption of those devices and factor in a 20–30% margin for startup surges (pumps, air conditioning). As a general guideline, 10 kVA is enough to power a single-family home; for large or rural homes with multiple appliances, you’ll want to go up to 14–27 kVA. If your power consumption is low, a portable gasoline-powered generator or inverter might be sufficient.
Single-phase or three-phase for a house?
Most homes have a single-phase power supply (230V), so an “M” model is typically the right choice. The three-phase “T” versions (400/230V) are for large homes or those with equipment that requires three-phase power. If you have any questions, check your utility bill or electrical panel, or ask us.
What is Automatic Start (ATS)?
This system detects a power outage, automatically starts the generator, and switches over the power supply in seconds; when grid power returns, it shuts down the generator. It’s ideal for avoiding the need to go outside to turn it on, especially at night or when no one is home. It requires an ATS transfer switch (not included).
Why diesel and not gasoline?
Diesel offers greater range and lower hourly fuel consumption, and at 1,500 RPM, it experiences less wear and tear and has a longer service life. It is the best option for extended outages or for providing backup power to an entire home. For occasional, small-scale backup power, a gasoline-powered inverter may be sufficient and more economical.
Are they noisy?
These models come standard with soundproofing, which significantly reduces noise and makes them suitable for residential areas.
Do you offer a warranty and technical support?
Yes. Genergy is a manufacturer that offers a 3-year comprehensive warranty (covering labor, transportation, 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 home. The battery and ATS panel may not be included, depending on the model.
Learn more on the blog
Not sure which model to choose?
Tell us what you want to keep running during a power outage and whether your home has single-phase or three-phase power, and our technical team will help you select the ideal generator. Genergy Total Warranty and in-house after-sales service.
