Here you will find tools to help you design your renewable energy system .
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Power usage calculator
With this handy calculator, you can work out your loads , free download ( Click to download )
Return on investment calculators
This handy calculator gives an indication of the ROI on applied lighting interventions . free download ( Click to download )
This handy calculator gives a realistic view of the ROI on grid feed solar installations. free download ( Click to download )
Solar design calculators
Wiring design calculators
With this handy calculator, you can work out your battery bank with selected voltages , efficiencies, and batteries , free download ( Click to download )
i Power SA solar system calculators are designed to be a simplistic photovoltaic system design aids. It does not replace the expertise of a professional PV Designer or Engineer nor that of a certified, licensed Electrician.
Please note that optimal orientation of the PV arrays is assumed .
For expert advice , please contact us !