Quick Answer
Solar installation earthworks typically require a mini excavator for cable trenching and foundation preparation, and sometimes a mini dumper for material movement.
Solar installation projects require earthmoving equipment for cable trench excavation, foundation preparation for ground-mounted systems, and conduit installation. For residential rooftop solar installations, the 0.8T or 1T mini excavator with a narrow trenching bucket is ideal for cable trenching from the roof to the inverter and from the inverter to the meter board. For ground-mounted solar systems, the 1.7T or 3.5T excavator is used for foundation pile installation and cable trench excavation. For large commercial or utility-scale solar installations, multiple machines may be required. BuildHire's solar installation customers typically hire a 0.8T or 1T for residential cable trenching and a 1.7T for ground-mounted system foundations.
Solar cable trenches are typically 300–600mm deep, depending on local regulations and cable specifications.
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