100KW Solar Farm Investment Time-frame.

15x DAT-15 Dual Axis-solar Tracking Units, fitted with 440W Solar Panels, Generates 100kWh Energy per Hour.

Keeping your Solar Array under 100kWh, allows you to remain eligible to Claim the Government REC's, as shown Below.

To build a smaller system, change the Panel Watts, Racking type and Latitude to suit your location.

NB: Only the RED cells can be changed, currently set for a 100KW Solar Array.

 1) Energy Generation;

Enter Solar Panel Quantity:


 Installing 590W panels requires 170 panels.
 Select the Solar Panel Power:


$ Watt. 

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

 For accurate calculation, solar modules effected by Shading from trees, buildings or terrain, 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);

 Standard Government Deeming Period for STC's: 

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

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

Delete if Not involved or Enter your system STC's: 

 STC/REC Credits. 

 (default STC's set to 100kWh Solar Array)

 *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 your Daily energy Consumption ! 

 *System DAILY EXCESS Energy:


Feed-in-Tarrif or P2P Income Rate:

  $   $ 

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

 4) Enter your Local RETAILER Energy Rate is ?

$ per kWh 

 Even if Off-Grid, Change the above Retailer Rate to indicate what you are Saving!

 5) Income from Feed-in-Tarrif, PPA or P2P Energy 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 and Cabling cost.

 Enter Estimated TOTAL Installation Cost: 

$ Doing your own installation is where you can make a big Savings.


$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 above.

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 total out of pocket Cost ÷ 25 years (assumed lifetime) ÷ Array kWh.

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




Planing procedures for the Serous Investor;

You Firstly need to contact your Energy Distributor (Not the Retailer), and ask what kW there power transmission infrastructure can handle, then you can start planing your system PPA around there infrastructure.

Secondly, If you are Not intending to do any of the solar farm Installation yourself, *Allow an additional $170'000 for the Commissioning & Installation costs, for undertaking the Design & Planning, Approvals for the full installation.

The above calculator is set based on the Supply of 15x Standard DAT-15 Modules (DATs), Foundation Poles, CEC approved Solar Panels, Inverters, PV DC Cabling etc.

We can provide an experienced PV System Designers and Installers contact details, however this is paid for Service!

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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