A solar PV design engineer needs a Loadsheet to design a solar photovoltaic system that meets the need and requirement for that client or building.


The Loadsheet gives the kWh (kilo watt hour) need and the kWp (kilo watt peak) to calculate how many solar panels, batteries and max. power of the inverter.


Your Load Sheet (explantion):

The load sheet is simply a list of devices that are connected to the solar system and the specifications around each appliance. From this loadsheet we can see if the (kW hours per day) and the (kW peak) fits the System Specifications. 


Download Load Sheet Template (.XLS format):

How to Fill in the Loadsheet:
Step 1:  Download our Loadsheet or create your own loadsheet (see instructions below..).
Step 2:  List all the appliances you want to be Solar Powered (e.g. TV, Fridge, Lights, etc..).
Step 3: For each appliance listed, determine how many there are of that appliance (Quantity). 
Step 4: For each appliance, determine it's power needs in Watts (W).  TIP: It is often written on the appliance, have a good look.
Step 5:  For each appliance, determine how long (Hours per Day) it is required to be ON in total.  
Step 6:  Let the spreadsheet calculate each appliances Total kWh and Spreadsheet Totals.
Step 7:  Email your Loadsheet back to us and we will do the rest.  Send To:   or 
                                                    or   Select a system using our 3-Step process   (Tip: match your kWh's to the system kwh's).
  • Please fill in info that reflects what loads (fridges, lights, TVs, etc) get used on an actual day that needs to be solar powered. 
  • Only fill in the appliances that get used in your home on a typical day (on average). So think of your typical day!
  • If this typical day changes significantly on say a weekend; please make a Note for us and tell us what/how it differs.
  • Do Not, go list ALL the appliances (e.g. Lights) in your home, unless they get used (ON) each typical day!!  
                                                                                             Example: Bathroom lights usually do not get used for more than a few minutes per day.
Create you own Loadsheet:
Create your own loadsheet by following these instructions:
The QTY is the number of appliances connected.

The WATTS is the power rating of the appliance (see user manual or back of appliance to find the power rating in Watts).

The HOURS is the duration in hours the appliance is to be powered per day or during a power outage.

The WATTS/HOURS is the calculation of:  QTY  x  WATTS  x  HOURS  = WATTS/HOURS.

                            NotesWATTS/HOURS is used to size the battery bank and the solar panel array. 

The WATTS (peak) is the calculation of:     QTY  x  WATTS                    = WATTS (peak)

                            NotesWATTS (peak)  is used to size rating/size of the inverter.


Example Load Sheet:   


   APPLIANCE                            QTY           WATTS         HOURS         WATTS/HOURS     WATTS (peak)

   Lights (LED)                              30                5W                  4                         600                        150

   Lamps (CFL)                             12                11W                4                         528                        132

   Fridge/Freezer/Combo           2                 190W              3                        1140                       380

   TV (LED) + DSTV                        1                 220W              4                          880                        220 

   Kettle                                         1                1500W           0.1                        150                       1500

   Laptops                                     2                  70W               4                          560                        140

   Garage Door                             1                  50W              0.1                           5                           50

   Elec Fence                                 1                 45W                4                          180                          45

                                                                                          TOTALS:                  4.05kWh               2.6kW  


                                                                                                                         Batteries &            Inverter

                                                                                                                       PV array  size             size


Download Load Sheet Template (.XLS format):

Follow our 3-STEP process

to select your ideal Residential

Solar Power Solution...