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HOMER Pro 3.13

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System Roundtrip Efficiency

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Type:

Intermediate Variable

Units:

none

Symbol:

η

The system roundtrip efficiency is the overall efficiency of the system in converting AC energy to DC, putting that energy into storage in the storage bank, removing it from the storage bank, and converting it back to AC. HOMER calculates the system roundtrip efficiency using the following equation:

η = ηinv ηrt ηrect

where:


 

 

ηinv

= inverter efficiency

 

ηrt

= battery roundtrip efficiency

 

ηrect

= rectifier efficiency