Calculate exported solar energy and the revenue it earns.
Self-consumed energy is worth the retail import price while exported energy earns only the export rate, often a fifth as much. That gap is the entire economic case for batteries and load shifting. The value of shifting one kWh from export to self-consumption is the number that determines whether a battery pays for itself.
Solar Export
Export revenue = exported kWh × export rate; self-consumption saving = used kWh × import price
Export revenue = exported kWh × export rate; self-consumption saving = used kWh × import price Self-consumed energy is worth the retail import price while exported energy earns only the export rate, often a fifth as much. That gap is the entire economic case for batteries and load shifting.
The value of shifting one kWh from export to self-consumption is the number that determines whether a battery pays for itself.
This calculator takes 4 inputs: Annual generation, Self-consumption rate, Export payment per kWh, Import price per kWh. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.