Below we have reproduced some sample pages from the Rv Solar Electric site in the States. You can get much more info on http://www.rvsolarelectric.com. We really liked the charts for estimating consumption and anyone thinking of upgrading their solar could learn quite a lot from these tables. Loved their little saying at the end of their pages!  - It is normal for people to fear things they don't understand. Our purpose is to help you learn about the systems in your RV so that you will experience less worry.) How true!

 

Our purpose is to offer you the information and equipment you need to be electrically independent in your recreational vehicle.  We have found RVing to be a wonderful lifestyle!  And, electrical independence adds freedom to your RVing life style and the freedom to go anywhere and live comfortably.

RV Solar Electric has been recognized since 1979 as a leading supplier of solar systems, AC inverters and other products. We specialize in RVs as the name implies. Our book RVer's Guide to Solar Battery Charging is sold by Alternative Energy dealers nationwide and is listed as a "must have" in major publications because it covers hard-to-answer questions people have about RV systems.

The purpose of SOLAR ELECTRICITY is to charge 12 volt batteries for RV lighting, stereo, TV, water pump and other 12 volt appliances.

An INVERTER is optional.  It allows the operation of 120 volt appliances like blender, toaster, vacuum cleaner, satellite, VCR, microwave oven or items that draw up to about 2000 watts of energy from the RV battery. Note we did not mention roof air conditioners or electric refrigerators as they run for long periods of time and are best run from propane or generator when utility hook-ups are not available.

BATTERIES are the heart and soul of an RV that is electrically independent. A large and rapidly growing majority of Rvers are opting for solar power to keep their batteries fully charged, others have built-in generators or occasionally stop for RV park accommodations. The number of solar panels you select is not a critical matter when your RV already has an effective alternator or engine generator. Add panels and batteries as your lifestyle dictates. An alternative power source is an important consideration for those who "dry camp" for 3 days or longer. With proper planning and the right equipment, you can keep your batteries charged and live very comfortably without hookups for any length of stay without running the generator. Our customers enjoy this fact.

GETTING STARTED:

The process of changing sunlight to electricity seems very scientific and many assume it to be technical. Just the opposite. Adding a solar system to your RV may be as simple as having an extra light fixture or 12 volt outlet installed. Still, there are considerations: cost, space and efficiency-- just as with light fixtures. We encourage you to read and talk with other Rvers who are using solar.

 

It is normal for people to fear things they don't understand.
Our purpose is to help you learn about the systems in your RV
so that you will experience less worry.

http://www.rvsolarelectric.com

 

APPLIANCE CONSUMPTION WORKSHEET by RV Solar Electric Inc.®
Helping you make the right choice!  http://www.rvsolarelectric.com

 
Appliance
Approx Current
(amps@12volts)
 
Hrs/day
Amp Hours
Consumed
Lights
Incandescent
   1 bulb (25 watt)
  2    X       ______ =       ______
   1 bulb (50 watt)   4    X       ______ =       ______
Quartz halogen
   (25 watt)
  2    X       ______ =       ______
Fluorescent
   1 tube (15 watt)
  1    X       ______ =       ______
   2 tubes (30 watt)   1.6 X       ______ =       ______
Entertainment
9-in color TV
  3    X       ______ =       ______
12-in B&W TV   1.1 X       ______ =       ______
CB receiver   0.5 X       ______ =       ______
Stereo am/fm   1    X       ______ =       ______
Equalizer/amplifier   2    X       ______ =       ______
Satellite receiver   2    X       ______ =       ______
Cooling/Heating
500 cfm fan
  1.2 X       ______ =       ______
750 cfm fan   2.5 X       ______ =       ______
1000 cfm fan   5    X       ______ =       ______
750 cfm fan   2.5 X       ______ =       ______
Forced-air furnace   5-8 X       ______ =       ______
Evap. Cooler (1200 cfm)   8    X       ______ =       ______
Vent & range hood fan   2    X       ______ =       ______
RV water pump   8    X       ______ =       ______
DC compressor refrig   6    X       ______ =       ______
3-way frig on 12 V 35  X       ______ =       ______
__________________ ______ X       ______ =       ______
__________________ ______ X       ______ =       ______
__________________ ______ X       ______ =       ______

The AC appliances listed below require the use of an inverter. The AC amps have been multiplied by 10 to show the DC amp draw from the battery (for example, 5 amp AC = 50 amp at 12VDC).
       
 
Appliance
Approx.Current
(amps@12volts)
 
Hrs/day
Amp Hours
Consumed
Saber saw  50 X       ______ =       ______
Microwave oven 125 X       ______ =       ______
Blender  15 X       ______ =       ______
Slide projector  50 X       ______ =       ______
Electric typewriter    8 X       ______ =       ______
Computer    4 X       ______ =       ______
14-in color TV    7 X       ______ =       ______
Sewing machine  10 X       ______ =       ______
Hair clippers    4 X       ______ =       ______
B/I vacuum 100 X       ______ =       ______
Electric broom

 60 X       ______ =       ______
Hair drier 1200w

 95 X       ______ =       ______
Satellite receiver

   3 X       ______ =       ______
__________________ ______ X       ______ =       ______
__________________ ______ X       ______ =       ______
__________________ ______ X       ______ =       ______
__________________ ______ X       ______ =       ______
Total amp hours used per day =       ______


 

 

 

Copyright 2002 - all rights reserved - Around Oz       www.around-oz.com
For problems, suggestions or questions regarding this web contact webmaster@around-oz.com
Last updated: 05-Nov-02