A power generator keeps the lights on when there’s no mains supply – something that happens more often than you’d think on UK construction sites. Whether you’re running lighting, tools, welfare cabins or pumps, a generator is the go-to solution for off-grid power.
Generators work by turning mechanical energy – usually from a petrol or diesel engine – into electricity. Most site models use diesel for better runtime and fuel availability, but you’ll also see ones running on petrol, gas, or even biofuels. The choice depends on how much power you need, how long you’ll be running it, and what fuel’s easiest to get on site.
They come in all sizes: from small portable units you can carry in a van to big trailer-mounted ones that power half a compound. Some are just for backup in case of outages, while others run non-stop for weeks. The key is choosing the right size – underpowered generators cause faults, and oversized ones waste fuel.
Using a generator safely means knowing more than just how to start it. You’ve got to think about ventilation, refuelling, noise levels, emissions, cable management, and protection from rain. A badly placed or overloaded generator can be a real hazard.
At Construction and Plant Training Services, we include generator use in several of our CPCS and NPORS courses. Whether you’re powering your own tools or setting up for the whole site, we’ll show you how to do it right – safely, legally, and without downtime.
