Solar planning tools

Solar self-consumption calculator

Use generation, consumption and directly used solar electricity from the same period. This energy balance does not predict hourly overlap or model battery charging.

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Editable example values

Your estimate

Live calculation
Self-consumption rate
50 %
Solar share of consumption
60 %
Grid exports
300 kWh
Grid imports
200 kWh
Planning estimates, not equipment approval. Review the assumptions below before choosing a system.

No location or tariff is detected automatically. All results use the values you enter.

What is this tool used for?

Use generation, consumption and directly used solar electricity from the same period. This energy balance does not predict hourly overlap or model battery charging.

How this is calculated

S ÷ G × 100%; S ÷ C × 100%; G − S; C − S; S = Solar directly self-consumed · kWh; G = Monthly solar production · kWh; C = Monthly household consumption · kWh

Understand the modelling approach →

Before you use the result

Use generation, consumption and directly used solar electricity from the same period. This energy balance does not predict hourly overlap or model battery charging.

Tool guide

Use generation, consumption and directly used solar electricity from the same period. This energy balance does not predict hourly overlap or model battery charging.

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