Question: how to calculate electrical load for residential pdf?
Answer: Given: ... 
Multiply the sf area by 3 volt-amperes (VA) per sf. ... 
Add 1,500 VA for each 2-wire, 20-amp small appliance branch circuit and the laundry circuit. ... 
Add in the appliance loads at nameplate value. ... 
Add all appliance loads together: ... 
Subtract 10,000 VA from the total VA (this will be added back in later)