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  Client Detail :  
  Name :
  Surname:
  Tel No:
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  Address:
  Energy Usage  Calculator    
   
NB: Fill in only the quantities of what is applicable to you,acording to rating of applaince  
  If you are unsure look at the Manufacturer's plate, on the side or back of applaince   Your sheet will be e-mailed to you when you Update
  Sometimes the Watt Rating is not there, only the  VA- then fill in VA under Watt  
  If neither the Watt Nor VA is present, then fill in the Amp and Volt Rating   
  Otherwise Leave   Amp and Volt rating empty        
  Choose estimated Hours per day , i.e. 15 Minutes = 0.25 Hours , 30 Minutes = 0.5 Hours  
  ONLY FILL IN THE APPLIANCES WHICH YOU NEED/WANT  TO RUN ON THE SYSTEM  
       
 
    Date
       
             
           
No Note Electrical Appliances Quantity Watt Rating Volts Amps Hours Per Day Hours Per week Watt.h per day Watt.h  Per Week Watt 
  Example 1 50W Down lights 14 50 0 0 6 0
  Example 2 42 " LCD Flat screen 1 150 0 0
0
  Example 3 DSTV Explora 1 120 0 0
0
  Example 4 Security Camera 1 0 24 1
0
  Example 5 Dishwasher 1 1500 0 0
6
1 Lights Energy Saving Globes
   
    Energy Saving Globes
   
Energy Saving Globes
   
LED Down lights
   
LED Down lights
   
LED Down lights
   
LED Security Lights
   
LED Security Lights
   
Security light CFL
   
Security light CFL
   
Incandescent Globes
   
Incandescent Globes
   
Fluorescent Lights
   
Fluorescent Lights
   
    Fluorescent Lights
   
    Security Light Other 
REPLACE THESE!! 50W Down Lights 50    
   
   
   
2 Kitchen Microwave
   
    Fridge 1
   
    Fridge 2
   
    Freezer
   
    Kettle 
   
    Slow Cooker
   
    Frying Pan
   
    Coffee Machine
   
    Expresso maker
   
    Washing Machine -Cold
   
    Washing Machine -Hot
   
    Tumble Dryer
   
    Dishwasher
   
    Oven
   
    Stove
   
   
   
3 Lounge DSTV/Mnet
100    
    Explorer
100    
    Sound System
150    
    Fan (Roof)
75    
    Aircon
   
    54Cm TV
120    
    74Cm TV
140    
    32 Inch Flat Screen
100    
    42 Inch Flat Screen
220    
    46 Inch Flat screen
260    
    Cell Charger
20    
   
   
   
4 Study Room Laptop
75    
    Desktop
140    
    Inkjet Printer
75    
    Laser Printer
600    
    Fan (Roof)
75    
    Fax Machine Combination
90    
    Wireless
20    
    Server
150    
    Aircon
   
    Cell Charger
20    
   
   
5 Bedroom(s) Fan (Roof)
75    
Aircon
   
Hairdryer
   
32 Inch Flat Screen
100    
42 Inch Flat Screen
220    
46 Inch Flat screen
260    
Electric Blanket
50    
Sound system
75    
Cell Charger
20    
Cell Charger
20    
X Box
120    
Play Station
120    
   
   
6 Security Cameras
15    
    Camera Decoder
80    
    Alarm System
25    
    Electric Fence
75    
   
7 Pantry  Vacuum Cleaner
1200    
    Iron
1500    
   
   
8 Domestic's Room Hotplate
2000    
  Geyser
2500    
    TV
75    
    Radio
40    
    Heater
2000    
   
   
9 Bar Bar Fridge
150    
    Wine Cooler
150    
    Ice Maker
1800    
    Heater
2000    
   
10 House Gen Lawnmower
1200    
    Aircon
   
    Aircon
   
    Heater
2500    
    Heater
2500    
    Geyser
2500    
    Geyser
2500    
    Tools
    Sewing Machine
140    
11 Garage
   
   
   
   
   
   
   
      Total
  Copyright : Dr Gawie Van Der Merwe   Total    
  kW.h Per Day  
  kW.H Per Week  
  kW.H Per Month  
  Peak Power (Watt)  
 
           
  Data Brought over   
 
  kW.h Per Day  
  kW.H Per Week  
  kW.H Per Month  
  Peak Power (Watt)  
  BACKUP POWER CALCULATOR  
 
Note : This sheet takes the information generated on the previous page and gives you an estimate on a UPS Backup system  
 
  Back-up Power System  
A Normal Back-up system does not offer connection to Solar Panels, It is Inverter-charger unit only,but  with a Battery Bank  
 
  Back -up Time Required 
  Hours  
  Inverter-Charger Size   Watt  
  Watt. Hour     This is your 24Hour usage reduced to average per 1 hour  
  Battery Depth Of Discharge
  For Battery Back-up we suggest not Higher than 50%  
  Choose Battery Size
 
  System Voltage    12V    DC Voltage  
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 12V Batteries required  
     
  System Voltage    24V   DC Voltage      
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 24V Battery Banks  required (2x 12v)  
     
  System Voltage    48V   DC Voltage  
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 48V Battery Banks  required (4x 12v)  
     
  System Voltage    72V   DC Voltage  
Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation
Quantity Required 
Quantity of 72V Battery Banks  required (6x 12v)
Suggested System Thus :
Inverter Charger Watt
Batteries 
of A.h
Budget Cost
Excluding Vat/Misc. and Installation
PRICE ARE BUDGET ONLY, INSTALLATION AND MISC COST EXCLUDED, WE RETAIN RIGHT TO CHANGE PRICES AT ANY TIME    
PRICES ARE SUBJECT TO CURRENCY CHANGES
 
  Copyright : Dr Gawie Van Der Merwe  
           
  Data Brought over   
 
Watt To Backup Fill In  
 
 
  Peak Power (Watt) Fill in  
  BACKUP POWER CALCULATOR (OWN INPUT)  
 
Note : The Sheet allow you to fill in your own rating to calculate  
  You Have to Fill in your in Both Wh..which you need the Backup as well as the Peak Power (watts)  
 
  Back-up Power System  
A Normal Back-up system does not offer connection to Solar Panels, It is Inverter-charger unit only,but  with a Battery Bank  
 
  Back -up Time Required 
  Hours  
  Inverter-Charger Size   Watt  
  Watt. Hour    
  Battery Depth Of Discharge
  For Battery Back-up we suggest not Higher than 50%  
  Choose Battery Size
 
  System Voltage    12V    DC Voltage  
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 12V Batteries required  
     
  System Voltage    24V   DC Voltage      
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 24V Battery Banks  required (2x 12v)  
     
  System Voltage    48V   DC Voltage  
  Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation  
  Quantity Required      Quantity of 48V Battery Banks  required (4x 12v)  
     
  System Voltage    72V   DC Voltage  
Battery Bank Size (Amp. Hour) A.h This is the RAW (Rough) Calculation
Quantity Required 
Quantity of 72V Battery Banks  required (6x 12v)
Suggested System Thus :
Inverter Charger Watt
Batteries 
of A.h
Budget Cost
Excluding Vat/Misc. and Installation
PRICE ARE BUDGET ONLY, INSTALLATION AND MISC COST EXCLUDED, WE RETAIN RIGHT TO CHANGE PRICES AT ANY TIME    
PRICES ARE SUBJECT TO CURRENCY CHANGES
 
  Copyright : Dr Gawie Van Der Merwe  

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