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HOMER Pro 3.13

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7.133 Renewable Fraction

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The renewable fraction is the fraction of the energy delivered to the load that originated from renewable power sources.

Type:

Output Variable

Units:

none

Symbol:

fren

HOMER calculates the renewable fraction using the following equation:

equations_f_ren

where:



 

Enonren

= nonrenewable electrical production [kWh/yr]

 

Egrid,sales

= energy sold to the grid [kWh/yr] (included in Eserved)

 

Hnonren

= nonrenewable thermal production [kWh/yr]

 

Eserved

= total electrical load served [kWh/yr]

 

Hserved

= total thermal load served [kWh/yr]

HOMER abbreviates the renewable fraction as "Ren. Frac." in the Sensitivity and Optimization Results tables.