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The EFOY energy calculator

Don’t know what source of energy is best for you? Whether you’re considering a generator, solar unit or EFOY fuel cell, your basis for choosing an energy source will always be your daily power requirements. Of course, the number and type of your electrical appliances you use, the time of year you need them and your personal routine will all have a major influence. Too complicated? We’ll help you decide. Just use our energy calculator. It will help you calculate your own daily energy needs and recommend the best energy source for you, based on your input.
 
Electrical Appliances Number of
Appliances
[n]		 x Wattage

[W]		 :12 Current

[A]		 x Daily Use
in Hours
[h]		 = Capacity

[Ah]
Lighting
LED illumination
+
-
        
Halogens
+
-
        
Spotlights
+
-
        
Energy-saving lights
+
-
        
Household Appliances
Ice chest, thermoelectric
+
-
        
Refrigerator, gas-powered
+
-
        
Microwave oven
+
-
        
Coffee maker (230V)
+
-
        
Hot-water kettle (12V)
+
-
        
Hair dryer
+
-
        
Utilities
Gas heating
+
-
        
Air conditioning
+
-
        
Small hot-water tank
+
-
        
Water heating element
+
-
        
Electric blanket
+
-
        
Water pump
+
-
        
Multimedia
Television set
+
-
        
Satellite receiver
+
-
        
Computer
+
-
        
Charger
+
-
        
Radio
+
-
        
Marine Equipment
Position lights
+
-
        
GPS
+
-
        
Wind Gauge
+
-
        
VHF transmitter
+
-
        
Miscellaneous Appliances
Miscellaneous Appliances
+
-
        
Miscellaneous Appliances
+
-
        
Miscellaneous Appliances
+
-
        
Energy Requirement [Ah/day]
Battery Capacity in the Mobile Home [Ah] *
min. battery capacity = 1.3 x energy need per day
Recommended Power Supply
Power Source   Daily output
[Ah]		 Independence Days,
independent**		 Power reserve
[%]
EFOY 600  
EFOY 900  
EFOY 1200  
EFOY 1600  
EFOY 2200  
Solar Summer* [Wp]
Solar Winter* [Wp]
EFOY 600 + Solar Summer* [Wp]
EFOY 600 + Solar Winter* [Wp]
Generator 1000W: 2 hours***  
No energy source  
* Solar output: guidelines for summers in Germany (Wp x 4 h) and winter (Wp x 1 h)
** until battery needs recharging
*** depends on charger, in this example a 20A charger
Now print out your personal energy check, locate a dealer near you and get your EFOY surprise gift (as long as supplies last).
Please enter your name, address and e-mail address below:
Company
Name *
Street, House No.
Postal code, City
Telephone
Email *
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