CALL 0808 164 1166

Generators and what they are used for in different sectors

Standby Heroes: A Look at Generators, Their Sizes, and Key Applications

In a world increasingly reliant on constant power supply, generators play a pivotal role in ensuring energy availability during outages, in remote locations, or at sites lacking access to a conventional power grid. From small portable units powering homes during storms to massive industrial machines keeping data centers and hospitals operational, generators are indispensable across a range of sectors.

A generator converts mechanical energy into electrical energy. This is typically achieved through electromagnetic induction, where movement within a magnetic field creates an electrical current. While the principle remains the same across models, generators vary widely in size, fuel source, and purpose.

Generators come in a broad spectrum of sizes, generally categorized into three main types:

  1. Portable Generators Typically producing 1 to 10 kilowatts (kW), these are compact, mobile units used in homes, camping, or construction sites. They’re ideal for short-term use and can power basic appliances like refrigerators, lights, or small tools.
  2. Standby/Home Generators These medium-sized units (10–50 kW) are permanently installed outside homes or small businesses. Automatically activated during a power outage, they are often fuelled by Diesel, natural gas or propane and can run essential systems for hours or days.,
  1. Industrial Generators
    Producing anywhere from 50 kW to several megawatts (mVA), industrial generators are used in large-scale applications such as hospitals, factories, data centres, and power plants. They often use diesel or natural gas and are designed for long-term, high-capacity operation.

Applications Across Sectors:

  1. Residential Use During extreme weather events or grid failures, portable and standby generators keep essential household systems running, from lighting and HVAC to sump pumps and security systems.
  2. Commercial Operations Businesses rely on standby generators to maintain operations during power outages, protecting data,IT systems and minimizing downtime, and ensuring customer service continuity.
  3. Healthcare Facilities Hospitals and clinics depend heavily on backup power for life-saving equipment. Regulations in many countries require them to maintain generator systems capable of functioning independently for at least 24–72 hours.
  4. Construction and Mining In off-grid areas, generators power tools, lighting, and equipment. Their portability and rugged build make them essential for site operations.
  5. Telecommunications and Data Centres Downtime in data transmission or storage can lead to significant financial losses. Generators ensure continuous uptime and protect against disruptions.
  6. Events and Entertainment Outdoor concerts, festivals, and movie productions often require on-site power sources to run lighting, audio, and broadcast equipment.
  7. Emergency and Disaster Relief In the aftermath of natural disasters, mobile generators are deployed for emergency shelters, relief centres, and rescue operations.

    As the world moves toward greener energy, the generator market is adapting. Hybrid systems (solar + battery + generator), hydrogen-fuelled models, and smart generators with remote monitoring capabilities such as EMS are increasingly entering the market. Meanwhile, governments and organizations are setting stricter emissions standards, encouraging cleaner and more efficient designs.

    Whether it’s powering a home during a blackout or ensuring a hospital ICU stays operational, generators are a silent force keeping modern life running. As technology advances and power needs grow, the evolution of generators will remain a crucial part of the global energy conversation.

    Electric Horse™ supplies generators of all sizes for hire and sale. Our nationwide coverage sees us deliver exceptional service to our clients, from Edinburgh to Manchester, Birmingham, London and everywhere in between. Contact us today and tell us about your generator hire needs, you can contact us on 0808 164 1166 or email us at info@electric-horse.com