Refer to NEC 120.41, 120.52(A) and 120.52(B)
Refer to NEC 120.53
Refer to NEC 120.54
Refer to NEC Table 120.55
Refer to NEC 120.6, 120.11(A) and 120.50
Pay close attention to which loads are only for heating, or only for cooling. Some are used for BOTH, so they should be included in the load calculation.
Refer to 120.57
The full rating of the installed equipment, or a minimum of 7,200 VA, should be included in the calculation for EACH new home because electric cars are becoming more common, but I don't think it is the intent of the code for include this load if an EVSE will NOT be installed.
Refer to 120.11(A) and 120.50
The intent of the code is to add 25% of the largest motor to the sum of the load calculation. This is a number that may be hard to find, especially before a home is built. I would choose the VA value of the the largest equipment that INCLUDES a motor and put it into this spot if you don't actually know which motor is the "largest".
1: General Lighting and Receptacles (Refer to NEC 120.41, Table 120.45, 120.52(A), and 120.52(B))
2: Fixed in Place Appliances (Refer to NEC 120.53)
3: Clothes Dryers (Refer to NEC Table 120.54)
4: Electric Ranges (Refer to NEC Table 120.55)
5: HVAC (Refer to 120.6, 120.11(A) and 120.50)
6: Electric Vehicle Equipment (EVSE) (Refer to NEC 120.57)
7: Largest Motor Adjustment: (Refer to NEC 120.11(A) and 120.50)
Grand Totals & Service Calculation: