Construction sites may use generators to support tools, pumps, lighting, temporary offices and other equipment when utility power is unavailable or insufficient. The required generator depends on the equipment mix, work schedule and site conditions.
Map the equipment and work phases
Prepare a list of equipment that may run at the same time. Include cranes, pumps, compressors, welding equipment, lighting, site offices and other electrical loads where applicable. Requirements may change as the project moves between phases.
Assess starting and simultaneous loads
Identify large motors and equipment with high starting current. Determine which loads must operate together and whether some can be scheduled sequentially. Have the load assessment checked by a qualified electrical professional.
Plan location and access
Consider generator placement, delivery vehicle access, lifting and unloading, cable routes, earthing, ventilation, exhaust direction, weather exposure and protection from site traffic. Keep required clearances as specified by the manufacturer.
Set rental duration and support expectations
Estimate project duration and daily operating hours. Discuss refuelling responsibilities, routine checks, operator requirements, maintenance support, breakdown response and extension terms with the rental supplier.
Prepare the quotation brief
Provide the site address, equipment list, estimated load, largest motor details, voltage and phase, operating hours, rental period and site access information.
What generator size is suitable for a construction site?
It depends on the connected equipment, motor starting current, simultaneous load, duty and site conditions. A qualified professional should verify capacity.
Can a generator be moved as a construction project changes?
Relocation may be possible depending on equipment design, transport arrangements, cable installation and site safety. Confirm the process with the supplier.
Who is responsible for fuel and daily checks?
Responsibilities should be stated clearly in the rental agreement and site operating procedure.
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