Existing Solar Payback Investment Calculator:

 How long will it take to Pay for a Battery Bank using your Existing Solar array ?

 To calculate this, enter your Solar Array Size, or change the Array Size, Type and the Nearest City.

 So, get your most expensive power bill and Adjust this calculate to see the investment recover time!

:: Other Micro-Grid Projects ::

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I you allready have a Solar Array

(USE THIS Calculator)

Micro Power Grid & Equipment Pay-Back Calculator. 

 Enter your Energy Consumption & the Retail Rate; (kWh Rate needed to calculate savings, based on Self Consumption)

Peak-Energy & Rate ? 
Shoulder-Energy & Rate ? 
Off-Peak-Energy & Rate ? 
 Retailer Daily Supply Charge ? 
$  =  $Quarterly Grid Supply Charge.   
State Grid Electricity COST: 
                excludes GST.

 Calculate your Equipment & Generation Cost; (#Below equipment costs are set @$0.75 exchange rate)

# Solar/Hybrid Inverter ? 

 NB: Solar ONLY Inverters DO NOT charge Batteries!

# Using Existing Solar Array ? 

 This calculator Excludes Solar Panel Costs !

# Select Solar Array Type ? 

 Solar Harvesting.

 # Dual-Axis Solar Tracking Kit ? 

# Battery Storage ? 

# Super Capacity Battery ? 


# Back-up Diesel Generator ? 

Cost of Wind Mill ? 

$   Wind Power Generated:  kW (Day)     kW Wind Power (Year) 

Cost of Aqua Generator ? 

$   Aqua Power Generated:  kW (Day)     kW Aqua Power (Year) 

 The System Energy Harvesting & Storage Results;

Solar Power Produced:

kW Day    $ 

Battery Energy Storage:

 kW Stored Battery Power.   

 Gen-Set Power Produce:

       kW (Day)    kW (Year)     litres (Day)   $ Day  

 The Micro Grid Results;





*TOTAL System Excess Energy:

kW Year     $

 Excess Energy field MUST be Positive, if not, increase Solar or other Energy production, more Energy production reduces the break-even period quicker !

 *Sell Excess Energy to Bespoke Retailer:

 kW Year     $

In the Red Bespoke Retailer field above, Enter no more than is in the System Excess Energy field, this will deduct the kWh from Excess Energy field.

 NB: You must have Battery Storage, to be able to On-sell energy to a Bespoke Retailer !

TOTAL System Cost: $ is calculated on Equipment cost at $0.75 exchange rate!
Total Yearly Power Production Cost: $ NB: Battery storage is required to Self-consume all your generated energy.
Payback Time:  Before profit, includes System cost, less any Rebates, Credits & Fuel cost.
TOTAL Yearly Savings/Income: $ After the break-even period, includes Solar savings, Feed-in and Harvest Credits.

Will your electricity savings pay for Financing your Micro Power Grid ?

YES, if you add a year to the 'PayBack time' and $1'000 for installation, your Monthly repayment should be less then your Power bill !

The larger your Battery storage the more secure and less chance of you having a black-out.

# Approx. product costs to become totally independent of the state grid.

* Only if more power is generated than consumed, this calculator will reduce your Payback Time further !

If you want to calculate your Battery system Amp-hour (Ah) into Kilowatt Hour (kWh) Electrical Click Here.


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