RESIDENTIAL ELECTRICAL
LOAD CALCULATION WORKSHEET
OPTION #1
Address:____________________________________________________ Date:_____________________
APN: _______________________________________ Owner:_______________________________________
Prepared by:________________________________________________________________________________
OPTION #1 Standard Method 2017 NEC Art. 220-
General Lighting Load Sq Ft.. ________________ x 3 VA = _____________ VA
Small Appliance Circuits @ 1500 VA ea. (min. 2) = ______________ VA
Laundry Circuits @ 1500 VA ea (min 1) = _______________ VA
Sub total = ________________ VA
First 3,000 VA of Lighting, Small Appliance, Laundry load @ 100% NEC Tbl. 220.42 = ___3000____ VA
From 3,001 to 120,000 VA @ 35% _______________ x .35 = ___________ VA
Over 120,000 VA @ 25% _______________ x .25 = ___________ VA
Dryer (5000VA) Use 5K or nameplate of dryer, whichever is greater. NEC 220.54 = ____________VA
Elect water heater (4500VA) or nameplate rating, whichever is greater. NEC 220.53 = _____________ VA
Range/Oven (9600VA) Use 9.6K or nameplate, whichever is greater. NEC 220.55 = ____________ VA
Sub Total (1) = ______________VA
Heating/AC- List Type and VA at 100% NEC 220.53
(H) heat pump (G) AC + FAU fan (S) heat strip (A) Cir fans
(1500VA/ton + 900VA)
( ) __________ ( ) _____________ ( )_________ ( ) ___________
( ) __________ ( ) _____________ ( )_________ ( ) ___________
__________ _____________ _________ ___________
Sub Total (2) =_______________ VA
Fixed appliances- 1-3 appliances 100%, 4 or more 75% of nameplate rating. Use factors below or nameplate rating, whichever
is greater. NEC 220.53
Microwave 1400VA ea _________________ Hood 400VA ea ____________
Dishwasher 1400VA ea _________________ Disposal (1hp) 800VA ea ____________
Refrigerator 1200VA ea _________________ Freezer 800VA ea _____________
Instant hot 1200VA ea _________________ Trash Comp 1800 VA ea ____________
Garage door opener ½ hp 800 VA ea ____________ Central Vac 1800 VA ea ____________
jacuzzi w/o heat 1500 VA ea___________________ Jacuzzi w/heat nameplate ________________
Pool equipment nameplate VA__________________ Hot tub nameplate VA___________________
Other _____________________________________ Other _________________________________
Appliance sub total = ___________________ x (100%) or (75%) Sub total (3) = ________________ VA
Miscellaneous motor loads- Add 25% of largest motor, including AC compressor.
Name motor ____________________ VA of largest motor ______________ x .25= Sub total (4) ______________VA
Add sub totals 1, 2, 3, 4 for Grand total VA ___________________
Grand sub total divide by 240 Volts = _______________________ AMPS
MINIMUM SERVICE PANEL SIZE REQUIRED = _______________________
RESIDENTIAL ELECTRICAL
LOAD CALCULATION WORKSHEET
OPTION #2
Address:____________________________________________________ Date:_____________________
APN: _______________________________________ Owner:_______________________________________
Prepared by:________________________________________________________________________________
OPTION #2 Optional method 2017 NEC Art. 220, Part IV
General Lighting Load Sq Ft. _________________ x 3 VA = ____________ VA
Small Appliance Circuits @ 1500 VA ea. (min. 2) = ____________ VA
Laundry Circuits @ 1500 VA ea (min 1) = ____________ VA
Dryer (5000VA) Use 5K or nameplate of dryer, whichever is greater. NEC 220.54 = ____________VA
Elect water heater (4500VA) or nameplate rating, whichever is greater. NEC 220.53 = _____________ VA
Range/Oven (9600VA) Use 9.6K or nameplate, whichever is greater. NEC 220.55 = ____________ VA
Microwave 1400VA ea = _____________ VA
Hood 400VA ea -------------------------------------------------------------------------------- = ______________VA
Dishwasher 1400VA ea =______________ VA
Disposal (1hp) 800VA ea --------------------------------------------------------------------------------- = ______________ VA
Refrigerator 1200VA ea = ______________VA
Freezer 800VA ea ---------------------------------------------------------------------------------- =_______________VA
Instant hot 1200VA ea = _______________VA
Trash Comp 1800 VA ea --------------------------------------------------------------------------------- = _______________VA
Garage door opener ½ hp 800 VA ea = _______________ VA
Central Vac 1800 VA ea--------------------------------------------------------------------------------- = _______________VA
Jacuzzi w/o heat 1500 VA ea =_______________VA
Jacuzzi w/heat nameplate -------------------------------------------------------------------------------------- = _______________VA
Pool equipment nameplate VA =________________VA
Hot tub nameplate VA --------------------------------------------------------------------------------------------- = ______________VA
Other ______________________________________________________________________________________VA
Other ______________________________________________________________________________________VA
General load total = _____________________ __________________________________ = ________________ VA
General load total = _____________________
100% 1st 10,000 VA - ________10,000VA_____
Remainder @ 40% = _____________________
Remainder + 10,000VA = General Lighting and appliance loads ___________________VA Sub total (1)
Heating/AC- List Type and VA at 100% NEC 220.82 (C ) reductions are allowed for elect. space heating (not heat pump). 65%
3 or less individually controlled units, 40% if 4 or more individually controlled units.
(H) heat pump (G) AC + FAU fan (S) heat strip (A) Cir fans
(1500VA/ton + 900VA)
( ) __________ ( ) _____________ ( )_________ ( ) ___________
( ) __________ ( ) _____________ ( )_________ ( ) ___________
Select the Largest of heating and AC loads only. ____________________VA
Add sub total (1) + largest Heating/ AC load = _________________VA divide by 240 volts = __________Amps
MINIMUM SERVICE PANEL SIZE REQUIRED = _______________________
