When it comes to choosing a generator or genset , it is essential to know the main features to identify the model best suited to your needs. Whether you need a generator for home, construction or industrial use, this guide will help you make the right decision.
Difference between Power Generator and Electric Generator
The terms power generator and genset are often used synonymously, but in reality there is a difference:
- Power generator : generic term for a device capable of producing electrical energy.
- Generator set : a generator with a combustion engine (petrol or diesel) that transforms mechanical energy into electricity.
In practice, every generator is a power generator, but not all power generators are generators.
How to Choose the Right Power Generator?
1. Power Required (Watts and kW)
One of the main aspects to consider is the power output . A generator must have enough power to power the connected devices without overloading.
- Rated Power : The constant power that the generator can deliver.
- Peak Power : The maximum value the generator can reach for short periods.
👉 Power calculation : add up the Watts absorbed by your devices and choose a generator with at least 20% more power to avoid overloads.
| Type of use | Recommended power |
|---|---|
| Domestic use (fridge, TV, lights) | 2-3 kW |
| Construction site (drills, circular saws) | 3-6kW |
| Industrial use (heavy machinery) | 6-15kW |
2. Fuel Type: Petrol, Diesel or Gas?
Fuel type affects performance, fuel economy and maintenance.
- Petrol : ideal for occasional use, cheaper but with higher consumption.
- Diesel : greater autonomy and duration, recommended for industrial or continuous use.
- LPG/methane : ecological and with lower emissions, excellent for closed or urban environments.
3. Generator Type: Inverter or Traditional?
- Traditional generator : produces alternating current with oscillations, suitable for non-sensitive instruments.
- Inverter Generator : Generates a stable current, ideal for electronic devices such as computers or modern household appliances.
If you need a generator for an RV, home, or to power technology, choose an inverter model .
4. Single Phase or Three Phase?
- Single phase (230V) : suitable for domestic use and small machinery.
- Three-phase (400V) : suitable for high-power industrial machinery.
5. Autonomy and Tank
Evaluate the tank capacity and hourly consumption :
- Small generators: 4-6 hours of battery life.
- Large generators: autonomy over 10 hours.
If you need a generator for long work sessions, choose a model with a large tank and a diesel engine.
6. Noise Level
Generators can be silent (<60 dB) or loud (>80 dB) .
For residential environments or places with noise restrictions, opt for a soundproof generator .
7. Starting: Manual, Electric or Automatic?
- Manual (pull-off) : economical but requires physical strength.
- Electric (with key or button) : more convenient and faster.
- Automatic (ATS - Automatic Start) : starts automatically in the event of a blackout, perfect for isolated businesses or homes.
Conclusions
The choice of the generator or genset depends on the usage requirements:
- For occasional use → petrol generator, 2-3 kW, inverter if stable current is needed.
- For construction sites → diesel generator, at least 5-6 kW, three-phase if necessary.
- For industrial use → diesel generator set, over 10 kW, with ATS for emergencies.
Discover the best generators in the dedicated section and find the perfect model for your needs:
