A generator is no longer a luxury but a necessary piece of equipment in many homes, businesses, and construction projects. Power outages, grid maintenance, and remote locations without access to the electrical network make a generator a practical and reliable solution.

What is a generator?

A generator produces electricity using a gasoline, diesel, or gas engine. The engine drives the generator, which converts mechanical energy into electrical energy, providing a power source wherever you need it.

Which type of generator is best?

1. Gasoline generators

  • Ideal for occasional use.
  • Cheaper, lighter, and quieter than diesel versions.
  • Downside: higher fuel consumption and shorter lifespan under heavy load.
  • Best for homes, weekend cabins, or small electrical tools.

2. Diesel generators

  • More durable and fuel-efficient.
  • Designed for longer operation and higher loads.
  • Robust, but louder and more expensive.
  • Best for businesses, construction sites, pumps, and equipment that runs continuously.

3. Inverter generators

  • Provide the most stable and clean power output.
  • Safe for sensitive electronics: laptops, smart devices, medical equipment.
  • Quiet and energy-efficient.
  • Best for campers, caravans, home use, and IT equipment.

How much power do you actually need?

A common mistake is buying a generator that’s too strong or too weak. Typical needs:

  • Basic home appliances: 2–3 kW
  • Complete household: 5–7 kW
  • Professional tools and construction: 6–10+ kW
  • Businesses, pumps, and larger systems: 10–30+ kW (diesel)

⚠️ Remember: motors in pumps, fridges, air conditioners, and compressors require 2–3 times their rated power at startup.

What makes a good generator?

  1. Automatic Voltage Regulation (AVR) – keeps voltage stable. Essential.
  2. Overload protection – protects the generator and your devices. Must-have.
  3. Engine quality – reliable engines include Volvo, Perkins, Doosan, Iveco, Scania, Lombardini, Cummins, Baudouin, Mitsubishi, Hyundai, and others.
  4. Fuel consumption – diesel consumes less but costs more. Gasoline is fine for occasional use.
  5. Noise level – choose models with 50–65 dB for residential areas.

Where are generators used?

  • Homes and weekend cabins
  • Construction sites
  • Agriculture and water pumps
  • Hospitality (outdoor areas, events)
  • Camping and travel
  • Emergencies and grid failures

How much does a generator cost?

  • Small gasoline models (2–3 kW): €150–350
  • Larger home models (5–7 kW): €400–800
  • Inverter generators: €500–1,500
  • Professional diesel generators: €900–5,000+

For reliable operation without compromise, diesel generators are the solution.

How to maintain a generator for long life

  • Regular oil changes (after the first 20h, then every 50–100h)
  • Regular air filter replacement
  • Check spark plugs (for gasoline models)
  • Keep fuel topped up
  • Run the generator at least once a month for 5–10 minutes