SUNRNR of Virginia, Inc.
Renewable Energy ... Anytime, Anywhere

What Will A SunRunner Run? Load, Endurance

or for us Baby Boomers ...
"How much sun will a sunrunner run if a sunrunner can run sun?"


Power Outages, Emergency Power, Solar Backup Generator


Ice? Hurricane? Tornado? Lightning? Traffic accident? Rolling brownout? Earthquake?
Unfortunate curious raccoon (took out a square mile here :) ? Other?

Americans are provided an incredibly and, for the time being, cheap utility grid system. When it fails temporarily, what do you want to run (load) and for how long (endurance)? (All numbers are for example only - your devices and usage may vary.)

Example #1
Here we'll let a SUNRNR get us through one full day in Florida, summer, after a hurricane ...
Appliance W/hr (avg) hr = W
EnergyStar Refrigerator 70 24 hr = 1680
Ceiling Fan, high speed 75 16 hr = 1200
Lights, 2 "60W" LED 6 3 hr = 18
Phone Charger 14 1/2 hr = 7
Computer/Radio/TV 150 1 hr = 150
Total        3055 
A SUNRNR only stores a useable 2000W. However, with two solar panels (280W/hr ideally, 250W/hr realistically) and 6 hours of sun (or wind) after the storm, you've gained over 1500W and can cover your "debt" with Watts to spare. Now add either two extra panels or a SUNPWR Power Module with its 2 solar panels, and you'll have it made in comfort.

Example #2
Next, same as above, but now ice like in Arkansas one Jan ...
Lower fridge requirements to 50W/hr because of colder temps, change fan into heater at 750W/hr for 7 hours (1200 + 5250 + 18 + 7 + 150 =
6625 W) See tips below regarding how heat and cold take a lot of energy.
This will require a previously-charged SUNRNR main unit and Power Module and four panels in sun for 5 winter hours (4000 W in units + ~2500 W from panels) to cover outage. Still better than the gallons of gas burned, if you can get gas, and the units can be inside with no noise and no danger!

Example #3
Localized power outages, one night of storm cleanup, power tools in Kansas ...
Appliance W/hr (avg) hr = W
Electric Chain Saw 1200 1.5 (total) = 1800
2 LED SpotLights 10 10 = 100
One SUNRNR!  Ready to recharge the next day!
Weekend Cabin or RV
Appliance W/hr (avg) hr = W
Small Fridge 40 40 = 1600
3 LED Lights 11 6 = 66
Fan 35 12 = 420
Skillet 1000 0.5 = 500
TV and Wii 200 2 = 400
Total        2986 
Charging while you're out hunting or while driving will cover the difference.  PS  We highly recommend a crock pot as the most-energy-efficient cooking method!!!        

Tailgate Party
Appliance W/hr (avg) hr = W
3 Strings LED Lights 13 3 = 39
Blender or Coffee Pot 350 1 = 350
Crock Pot 70 3 = 210
Bubble Maker 4 3 = 12
Total        611 
That's not enough to make a SUNRNR sweat ... let's add a hand-warming space heater for that December night game at Virginia Tech (600 W/hr for 2 hr)
PS  We can powdercoat your box in one of many team colors!!  (See Accessories-Options page)

Construction Site
Appliance W/hr (avg) hr = W
Power Tools  1000 2 = 2000 
Two hours doesn't seem like a lot at first, but remember the tools, saws, compressors, etc only run for a fraction of the time, not 2 hours continuous.  Charge while working and you can forget those extension cords or temporary lines to the site.  And see if you qualify for an extra Innovative LEED/GBC Credit!

Remote Well Pump
Appliance W/hr (avg) hr = W
240 VAC 3/4HP Well Pump  750 2 = 1500
Perfect use for a dedicated SUN240 with two panels.

Eco-Resort
Replace all gas generators with solar generators and never haul gas cans again.  And no noise!

Reduce Grid Usage/Dependence
The average American household uses 30 kWh PER DAY!!  It is possible to reduce this by 5% by using a SUNRNR effectively.  For example, use one to vacuum the house one morning, wash a load of laundry the next day, then recharge your electric scooter the next evening, ... More on this utility demand reduction on our blog.

Constant Power Example
Remember, like a bank account, you can only withdraw what you've deposited.  If you spend it all quickly, it may take a while to rebuild the balance.  But if you only spend what you deposit daily, you'll always keep that balance for days when you can't make a deposit.  With two panels and six hours of sun daily, you may "spend" 1500 Wh daily and never have to dig into your savings until a rainy day.  Add an extra pair of panels for 3kWh daily.

Helpful Tips in Understanding Power Consumption Requirements:

  • Devices that create heat (or remove heat) are highest in power consumption   (iron = bad, but 48" TV = good).
  • Electrical devices have a data plate somewhere, usually under or behind or even on cord. It usually states input voltage (100-120 or 200-240), amp (load) rating, and/or maximum Watts. The voltage (and frequency in Hz) tells you if you'll need a SUN110, SUN220, or SUN240. The Watts are really Watt-hours (i.e. how many Watts you'll use every hour if you run the device at full power constantly).
  • If Watts are not provided, you can calculate them by multiplying Volts times Amps.
  • Watts listed are maximum - a refrigerator might use 300W while compressor is running (can hear it) and 5W the rest of the time (Might average 50W/hr). Also true of variable power devices like stereos, ovens, computers, etc.
  • That big yellow EnergyStar sticker has the best information (W/yr) for averaging consumption over time (W/hr = W/yr divided by 365 divided by 24).
  • (1kW = 1000W)
Reference the Typical Energy Consumption Table below for various appliance requirements.  Even better yet, buy a Kill-A-Watt Energy Usage Meter for $20 at HomeDepot and KNOW how much power you want to have.

Please see Energy Requirement Worksheet to help analyze your personal requirements.  And if your application is more of a daily, constant nature, the Continuous Usage Graph might be helpful in determining if one SUNRNR will be enough for your application.  (Model types may be mixed and matched to expand your system.)
 Operating Characteristics of Electric Appliances in the Residential Sector   (printable pdf - click here)
Annual Usage
Power Draw (W) (1) (hours/year) Annual Consumption Annual Cost
Active Idle Off Active Idle Off (kWh/year) ($) (2)
Kitchen
Coffee Maker 1,000 70 0 38 229 8,493 58 5.6
Dishwasher (3) 365 (4) 120 11.6
Microwave Oven 1,500 3 70 8,690 131 12.6
Toaster Oven 1,051 37 54 5.2
Refrigerator-Freezer 660 63.1
Freezer 470 45.0
Lighting
18-W Compact Fluorescent 18 1,189 20 2.1
60-W Incandescent Lamp 60 672 40 3.9
100-W Incandescent Lamp 100 672 70 6.4
Torchiere Lamp-Halogen 300 1,460 440 42.0
Bedroom and Bathroom
Hair Dryer 710 50 40 3.4
Waterbed Heater 350 3,051 1,070 102.7
Laundry Room
Clothes Dryer 359 (4) 1,000 96.0
Clothes Washer (3) 392 (4) 110 (3) 10.4
Home Electronics
Desktop PCs 75 4 2 2,990 330 5,440 237 22.8
Notebook PCs 25 2 2 2,368 935 5,457 72 6.9
Desktop Computer Monitors 42 1 1 1,865 875 6,020 85 8.2
Stereo Systems 33 30 3 1,510 1,810 5,440 119 11.4
Televisions 97 4 1,860 6,900 222 (7) 21.3
Analog, <40" 86 1,095 (5) 184 17.7
Analog, >40" 156 1,825 (5) 312 30.0
Digital, ED/HD TV, <40" 150 1,095 (5) 301 28.9
Digital, ED/HD TV, >40" 234 1,825 (5) 455 43.7
Set-top Boxes 20 0 20 6,450 0 2,310 178 17.1
DVD/VCR 17 13 3 170 5,150 3,430 78 7.5
Video Game Systems 36 36 1 405 560 7,795 41 3.9
Heating and Cooling
Dehumidifier 600 1,620 970 93.3
Furnace Fan 295 1,350 400 38.2
Ceiling Fan (only fan motor) 35 2,310 81 7.8
Space Heater 1,320 1 584 314 30.1
Water Heating
Water Heater-Family of 4 4,500 64 (6) 4,770 458.3
Water Heater-Family of 2 4,500 32 (6) 2,340 224.3
Portable Spa 4,350 275 25 8,735 2,525 242.4
Miscellaneous
Rechargeable Power Tool 13 4 73 38 3.6
Vacuum 542 37 55 5.3
Pool Pump 1,000 792 790 76.0
Well Pump 725 115 80 8.0
Lawn Sprinkler 11 0 32 3.1
Aquarium Equipment 24 6,534 153 14.6
Note(s): 1) Power draw will vary due to appliance components and modes of operation. 2) $0.096/kWh. 3) Excludes electricity for water heating and drying. 4) Cycles/year. 5) TVs <40" are estimated on 3 hours/day and TVs >40" are estimated on 5 hours/day. 6) Gallons/day. 7) Power, usage and annual consumption values for televisions are weighted averages of multiple usage types and screen sizes.

PO Box 102 • Port Republic VA 24471 • 540-271-3403 • info@sunrnr.com • Made in USA