How to Calculate Generator Load for Multiple Power Tools?

maxiMus000

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hey folks I’m trying to size the right generator for a jobsite setup that be running multiple power tools at once.. think saws, drills, maybe a compressor. Ive seen some charts online but they all seem to vary, and I’m not sure how to factor in startup loads versus running watts. Do you calculate total load based on max usage or build in some buffer? Also, does anyone have a rule of thumb or formula that works well in the field? Would love to hear how you all plan your generator load for real-world conditions
 
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