Genertor Electrical Load Estimate
15kW Generator ~ Continuous Ratings (Natural Gas Fueled)
13000 Watt
108 Amps @ 120 V
54 Amps @ 240 V
Average Usage (From Electric Bills)
2000 Watt
Summer Must Have Winter Must Have
  Quantity (Running) Wattage (Starting / Surge) Wattage Total (Running) Wattage Total (Starting / Surge) Wattage      
Outside        
Lights                      2              85              85            170            170            170            170            170            170
Lights                      2              85              85            170            170            170            170            170            170
Lights                      1              90              90              90              90              90              90              90              90
Lights                      1              90              90              90              90      
Lights                      2              90              90            180            180      
Garage        
Lights                      4              45              45            180            180      
1/3 HP Garage Door Opener                      -            750         1,650                -                -      
1/2 HP Garage Door Opener                      1            875         2,300            875         2,300            875         2,300            875         2,300
Refrigerator                      1            300         1,000            300         1,000      
Garage Entry        
Lights                      1              60              60              60              60      
Powder Room        
Lights                      4              60              60            240            240      
Vent Fan                      1            120            140            120            140      
Laundry        
Lights                      1              60              60              60              60      
Washer                      1 1150         2,300         1,150         2,300         1,150         2,300         1,150         2,300
Dryer (Gas)                      1 700         2,300            700         2,300            700         2,300            700         2,300
Kitchen        
Lights                      1              60              60              60              60      
Lights                      2              60              60            120            120      
Lights                      4              60              60            240            240      
Lights                      4              60              60            240            240      
Coffee Maker                      1         1,500         1,500         1,500         1,500      
Toaster                      1         1,000         1,200         1,000         1,200      
Refrigerator                      1            700         2,000            700         2,000            700         2,000            700         2,000
Stove (gas)                      1            100            100            100            100            100            100            100            100
Dishwasher                      1            700         1,400            700         1,400      
Microwave                      1            800            900            800            900            800            900            800            900
Lv Room        
Lights                      1            100            100            100            100            100            100            100            100
Television                      1            300            300            300            300            300            300            300            300
DVD                      1            150            150            150            150            150            150            150            150
VCR                      1            150            150            150            150            150            150            150            150
Cable Box                      1            150            150            150            150            150            150            150            150
Stereo                      1            300            300            300            300            300            300            300            300
Den        
Lights                      2              60              60            120            120      
Lights                      1            150            150            150            150      
Computer                      1            720            720            720            720            720            720            720            720
Misc. Equip                      1            400            400            400            400            400            400            400            400
Dining Rm        
Lights                      1            150            150            150            150      
Lights                      2              60              60            120            120      
C. Fan                      1            200            300            200            300      
Main Hall        
Lights                    11              60              60            660            660      
M. Bedroom        
Lights                      2              60              60            120            120            120            120            120            120
Lights                      1            100            100            100            100      
Lights                      1            150            150            150            150      
Lights                      2              60              60            120            120      
Lights                      1              60              60              60              60      
C. Fan                      1            200            300            200            300      
Water Bed                      1            400            400            400            400            400            400            400            400
Stereo                      1            300            300            300            300      
Television +                       1            500            500            500            500      
Clock Radio                      1              20              20              20              20              20              20              20              20
M.B. Bathroom        
Lights                      6              60              60            360            360      
Lights                      1              60              60              60              60              60              60              60              60
Vent Fan                      1            120            140            120            140            120            140            120            140
Bedroom #1        
Lights                      5              60              60            300            300      
Lights                      1            150            150            150            150      
Lights                      1              60              60              60              60              60              60              60              60
Lights                      1              60              60              60              60      
C. Fan                      1            200            300            200            300      
Water Bed                      1            400            400            400            400            400            400            400            400
Stereo                      1            250            250            250            250      
Television +                       1            500            500            500            500      
Clock Radio                      1              20              20              20              20              20              20              20              20
M. Bathroom        
Lights                      6              60              60            360            360      
Lights                      1              60              60              60              60              60              60              60              60
Vent Fan                      1            120            140            120            140            120            140            120            140
Bedroom #2        
Lights                      1            100            100            100            100            100            100            100            100
Lights                      2              60              60            120            120      
Clock Radio                      1              20              20              20              20              20              20              20              20
Bedroom #3        
Lights                      1            100            100            100            100      
Iron                      1         1,200         1,200         1,200         1,200      
Shredder                      1            300            600            300            600      
Basement        
Lights                      2              23              23              46              46      
Lights                      4              23              23              92              92      
Lights                      3              23              23              69              69      
Lights                      1              23              23              23              23      
Lights                      1              60              60              60              60      
Lights                      1              60              60              60              60      
Computer                      5            720            720         3,600         3,600         3,600         3,600         3,600         3,600
L. Printer                      1            500            750            500            750      
Misc. Equip                      1            400            400            400            400            400            400            400            400
Central Air Condirioner (30000 Btu, or 2.5 Ton)                      1         3,500       18,000         3,500       18,000         3,500       18,000  
Furnace (1/3 HP Fan)                      1            700         1,400            700         1,400            700         1,400            700         1,400
Sump Pump                      1            800         2,000            800         2,000      
Dehumidifier                      1            650            800            650            800            650            800            650            800
              30,845       55,480       17,375       38,340       13,875       20,340
TOTAL Usage Total (Running) Wattage Total (Starting / Surge) Wattage Total (Running) Amps 120v Total (Starting / Surge) Amps 120v Total (Running) Amps 240v Total (Starting / Surge) Amps 240v
100%       30,845       55,480            257            462            129            231
90%       27,761       49,932            231            416            116            208
80%       24,676       44,384            206            370            103            185
70%       21,592       38,836            180            324              90            162
60%       18,507       33,288            154            277              77            139
50%       15,423       27,740            129            231              64            116
40%       12,338       22,192            103            185              51              92
30%         9,254       16,644              77            139              39              69
20%         6,169       11,096              51              92              26              46
10%         3,085         5,548              26              46              13              23
Summer Usage Total (Running) Wattage Total (Starting / Surge) Wattage Total (Running) Amps 120v Total (Starting / Surge) Amps 120v Total (Running) Amps 240v Total (Starting / Surge) Amps 240v
100%       17,375       38,340            145            320              72            160
90%       15,638       34,506            130            288              65            144
80%       13,900       30,672            116            256              58            128
70%       12,163       26,838            101            224              51            112
60%       10,425       23,004              87            192              43              96
50%         8,688       19,170              72            160              36              80
40%         6,950       15,336              58            128              29              64
30%         5,213       11,502              43              96              22              48
20%         3,475         7,668              29              64              14              32
10%         1,738         3,834              14              32               7              16
Winter Usage Total (Running) Wattage Total (Starting / Surge) Wattage Total (Running) Amps 120v Total (Starting / Surge) Amps 120v Total (Running) Amps 240v Total (Starting / Surge) Amps 240v
100%       13,875       20,340            116            170              58              85
90%       12,488       18,306            104            153              52              76
80%       11,100       16,272              93            136              46              68
70%         9,713       14,238              81            119              40              59
60%         8,325       12,204              69            102              35              51
50%         6,938       10,170              58              85              29              42
40%         5,550         8,136              46              68              23              34
30%         4,163         6,102              35              51              17              25
20%         2,775         4,068              23              34              12              17
10%         1,388         2,034              12              17               6               8