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Appliance Watts/Amps Calculator
       Electricity is measured in units of energy called watts, named after James Watt, the inventor of the steam engine. Watts is generally defined as the amount of power (or energy) an appliance uses (consumes) when operated at its maximum capacity for 1 hour . Amps on the other hand is defined as how much energy an appliance draws, or the rate of energy that flows through wire when an appliance is used for 1 hour. Finally, volts is what energizes the appliance or it is the force that pushes electricity through wire to the appliance. You can determine power characteristics of an appliance if watts rating is not provided,  by the following equation: V (Volts) X A (Amps) = Watts (Ohm's Law)
                                                                 A=W/V
                                                                 V=W/A

       To determine Amps consumed by a 25watt 12V light bulb, for example, use the equation A=W/V or  (25/12=2.1Amps).  Therefore, adding up a
mps figures for the various appliances you intend to plug into a Sunrnr will give you the total electrical load you will put on the equipment (or demand that it powers).
       Please note that the proper selection of AC or DC appliances is an important factor,  because it is better to have the power source and appliance working at the same voltage, so that, in a manner of speaking, nothing is lost in the conversion. For instance a 12V DC electrical circuit that supports a refrigerator will use power more efficiently if the refrigerator also operates at 12V DC. The  efficiency level is lessened if a 12V AC powered refrigerator is connected to a 12V DC electrical circuit using an inverter. 
       Also, LED (light-emitting diodes) bulbs and Energystar rated appliances consume less energy and operate more efficiently. You can therefore run more of these types of appliances on a Sunrnr.  Appliances that run at 240V AC- such as electric water heaters, cook-stoves, furnaces and air conditioners, are impractical loads to run on solar- whether generator or grid-tie.  Alternatives such as LP or natural gas for water/space heating or cooking, evaporative cooling instead of compressor based AC units, and passive solar ideas are cost-saving options. The rule of thumb in the renewable energy industry is that for every dollar invested replacing inefficient appliances,  three dollars is saved in the cost of a renewable energy system to run them.
       LED bulbs replace 75W-100W incandescent bulbs with equal light output while consuing a ere 3W-13W.  They last upward of 50,000 hours meaning if you leave a new LED bulb on for 8 hours/day it would not need to be changed for over 10 years. They are very efficient, use little electricity and therefore result in an immediate decrease in your electric bill.
     Your utility bill, supplied monthly by your electric provider, is reported in Kilowatt Hours (KWh) of use (1 Kilowatt = 1000W).
To determine KWhs,  multiply Kilowatts by number of hours of use. Therefore, a 60W light bulb used 5 hours a day consumes 300 watt hours or 0.3KWh of electricity.


Energy Watts/Amps Guide (Estimated)
110V AC Appliances- Watts to Amps Conversion (A=W/V)

                                                          WATTS                DC Amps


Blender                                             300                      30.0
Blow Dryer                                        900                      90.0
Cappuccino machine                     1250                   125.0
Clock                                                 1                           0.08
Coffee maker (brewing)                 800                     80.0
CD/DVD Player                                35                        3.5
Compact Fl. Light Bulb-CFL
40W equiv.                                      11                          1.10
CFL- 60W equiv.                            15                          1.5
CFL- 75W equiv.                            20                          2.0
CFL- 100W equiv.                          26                          2.6
Computer- Laptop                         60                          6.0
Computer-Desktop                       100                        10.0
Computer inkjet Printer                70                           7.0
Crock Pot- 6 Qts.                           270                         27.0
Curling Iron                                    1000                      100.0
Dish Washer                                 1200                      120.00
Electric Blanket                             200                         20.0
Electric Fan- 21" Box (High)       166                         16.60
Electric Fan- 21" Box (med.)      117                          11.70
Electric Fan- 21" Box (Low)        87                             8.7
Electric Skillet                               1000                        100.0
Fan-table                                       18                            1.80
Freezer                                           500                          50.0
Hair Dryer                                      1500                       150.0
Iron                                                 1000                       100.0
Light- Incandescent                    40                            4.0
Light - Incandescent                   60                            6.0
Light- Incandescent                    75                            7.5
Light- Incandescent                    100                         10.0
Light- Incandescent                    40                            4.0
Light - Incandescent                   60                            6.0
                                                      WATTS                DC Amps


Light- Incandescent                   40                         4.0
Light - Incandescent                  60                         6.0
Light- Incandescent                   75                         7.5
Light- Incandescent                   100                      10.0
Light- 60W LED                           3                           0.30
Microwave- 1000W                     1100                   110.0
Power tool- Belt Sander             500                     50.0
Power tool- Bench Grinder        370                     37.00
Power tool- Chain Saw              1200                   120.00
Power tool- Circular Saw           1320                   132.00
Power tool- Drill, Jig Saw           360                      36.0
Power tool- Portable Charger    5                          0.50
Power tool- Soldering Iron          20                        2.0
Radio Telephone- Receive         5                          0.50
Radio Telephone- Transmit        40                       4.0
Refrigerator-  14 to 20 cu.ft.         30                       3.0
Satellite Dish                                  30                       3.0
Shaver- electric                              15                       1.50
Space Heater                                 1200                  120.00
Stove- electric                                 800                     80.0
Sump Pump- 1/6 HP                     880                     88.00
TV- 12" B&W                                    30                       3.0
TV/VCR Combo- 13" Color           50                       5.0
TV- 25" Color                                   100                    10.00
Toaster                                             1000                  100.00
Toaster Oven                                   1200                  120.00
Vacuum- handheld                         150                    15.00
VCR                                                    40                       4.0
Waffle Iron                                        1200                   120.00
Washer                                              600                     60.00
Water Heater                                    4500                   450.00
Well Pump                                        1000                   100.00

 

Common 12V DC Appliances
Amps to Watts conversion ( V x Amps=Watts)

                                                                                     DC Amp Draw

Autopilot                                                                      2.0
Bilge Pump                                                                 4.0
Blender                                                                        8.0
CD/DVD Player                                                           3.2
Coffee Maker                                                              10.0
Curling Iron                                                                 1.3
Depth Sounder (Backlit)                                           0.1
Fan- 14" Box (High)                                                   2.8
Fan- 14" Box (Low)                                                    1.2
Fan- 7" (High)                                                             1.3
Fan- 7" (Low)                                                              0.6
Food Processor                                                         9.0
GPS- Fixed Mount                                                      0.5
Grill- Similar to G.Foreman                                     15.0
Hair Dryer                                                                   14.0
Heated Blanket- single                                            4.2
Heated Blanket- double                                           6.7
Heater- ceramic                                                        15.0
Laptop Computer                                                      3.0
Electric Marine Head                                                1.3
Light- 5W                                                                     0.4
Light- 10W                                                                   0.8
Light- 20W                                                                   1.7
Light- 25W                                                                   2.0
Light- 55W sealed beam                                          4.6
Light- 16W Fluorescent                                            1.4
Light- 30W Fluorescent                                            2.2
                                                                  DC Amps Draw

Light- 400,000 Candlepower                                5.5
Light- 300,000 Candlepower                               10.0
Microwave- 450W                                                    65.0
Popcorn Maker                                                        13.0
18V Power tool- 12V recharger                            4.0
Radar Antenna                                                        3.0
Radio- handheld rechargeable                           2.5
Refrigerator- LP Gas Mode                                  1.6
Refrigerator/Freezer- 9 Cu. Ft.                              2.9
Refrigerator/Freezer- 11.4 Cu. Ft.                        5.8
Refrigerator/Freezer- 14.4 Cu. Ft.                        5.8
Refrigerator/Freezer- 17.4 Cu. Ft.                        9.7
Sandwich Maker                                                     5.0
Saucepan- Eletric                                                  13.0
Television- 13"                                                        4.5
TV Antenna Booster                                               1.0
Toaster Oven- High                                               10.0
Toaster Oven- Low                                                 7.3
Vacuum- 1 gal. Wet/Dry                                        10.0
Vacuum- Hand Held                                             13.0
Vari Speed Ceiling/Vent Fan                                4.0
VCR Recorder/player                                             2.0
VHF Radio- transmit                                              5.0
VHF Radio- Standby                                               0.06
Water Pump- 1 gal/m                                             1.0
Water Pump- 2 gal/m                                             5.5
Water Pump- 3.5gal/m                                           8.5
What appliances can the Sunrnr run and for how long? And how does the Sunrnr compare to other generators?

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