4x DAT-15 Dual Axis Solar Racking v Fixed Tilted Racking

This Calculator is pre-set for 4x DAT-15 Solar Tracking units, fitted with 440W solar panels =26.4kW Array.


Change Panel Watts, Array Racking type and Latitude Location to suit your system.

NB: Only the RED cells can be changed, currently set for a 26KW Solar Array.

 1) Energy Generation;

Enter Solar Panel Quantity:


 Add additional panels to increase System kWh.
 Select the Solar Panel Power:


$ Watt. 

   *Total Solar Panel Cost: $
 Select Solar Racking/Generation Type:

 For accurate calculation, solar Panels/modules effected by Shading from trees, buildings or terrain, simply reduce the hours of Harvesting! 

 Total System Energy Generated:

kWh/p DC Energy Generated per Day. 


Array Size

 per Hour/peak 

Solar Energy


 per Day/peak 

Solar Energy


 per Week/peak 

Solar Energy


 per Month/peak 

Solar Energy


 per Quarter/peak 

Solar Energy


 per Year/peak 

 Above Fields indicate peak Energy production, other transmission losses reduce these results. 

 2) Small-scale Technology Certificates (STC);

Enter Your Solar System STC's: 

 STC Credits. 

  (1 STC = 1 REC)  

 (Pre-Set to 396 STC's for a 26.1KW Solar Array)

 *13kW Solar Array provides 198 STC's when claiming 11years rebate, STC end at a max. 100kWh system.

 NB: 1x STC = 1x REC credit, and are limited to a maximum 100kWh system. Click Here to Calculate YOUR System STC Quantity

 Standard Government Deeming Period for STC's: 

 10 Years STC's from Jan 2021. (set to end in 2030) 

 *Renewal Energy Certificate (REC) PRICE: 

$ per REC.  

  System TOTAL REC's to be Refunded: $ 

 Calculate the Government STC/REC Price, by setting the above REC PRICE to the current REC price.

 *Approx. REC spot prices is $38 in June 2020.

 3) System Generation, Consumption & Feed-in Tarrif or P2P Income;

Daily Solar Energy Generated:


 Enter your Daily Energy CONSUMPTION:

 kWh per Day.   If any, Change this figure to match your actual energy Consumption ! 



Feed-in-Tarrif or P2P Income Rate:

  $   $ 

 EXCESS Energy field above MUST be Positive, if not increase Solar Generation, as the more Energy Generated reduces the break-even period!

 4) Enter your Local RETAILER Energy Rate; 

$ per kWh (Red Energy $0.25 Aug 2020)


 Even if you are Off-Grid, Change the above Retailer Rate to your area Rate, as it will indicate what you are Saving!

 5) Income from Feed-in-Tarrif or P2P Trading ::



 per kWh 



 per Day 



 per Week 



 per Month 



 per Year 

$ $ $ $ $

 Only if connected to the State Grid supply or Private distribution.

 6) Micro Grid - Potential Payback time;

 Enter TOTAL System Investment Cost: 

$ DATs, Solar Panels &  Cabeling Cost.

 Enter Estimated TOTAL Installation Cost: 

$ You will make big Savings if you do some or all of the installation yourself.


$ REC's are Paid in one lump-sum amount into Your bank account after CEC approval.

 *Yearly Self-Consumption SAVINGS: 

$ ONLY applies if you Consume some of your Solar energy, as set above!

 *Yearly Feed-in-Tarrif or P2P INCOME: 

$ ONLY applies if you are State Grid connected and Exporting at the Rate You set above!

*Years to the Financial Break-Even Point: 

 Years  Based on above figures entered.

Solar Array Capital Expense: 

$per kWh   OR  $ per Watt  =Total System Cost - less REC's Refund ÷ by system kWh.

Solar Levelised Cost of Energy LCOE: 

$per kWh  LCOE =Total System Cost ÷ 25 year energy Generation.

 LCOE is Calculated on the system's total out of pocket Cost inc. O&M ÷ 25 years kWh Generation. (25 years assumed lifetime)

 You can ONLY Change the above RED Fields to see the Investment Payback Time!



Important: *Please note that all amounts and estimates shown above can be set to suit multiple configurations, and are used for symbolic estimation purpose only.  The actual figure depends on lots of issues including quantity of sun (cloud coverage), Fixed panels, Single Axis or Dual Axis tracking, cabling (DC/AC), electrical connections and electronic losses etc.  These amounts and figures should be considered as example only, and under whatever circumstances, we do not make any guarantee, or cannot be held responsible about these estimates, if used as an actual return to investment!


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