Interest Rate

See also: 

Used only when conducting transmission modeling as part of full energy system optimization. Transmission modeling is enabled by editing the Transmission Networks setting in the Settings: Optimization screen.

This variable is specified for each Transmission line ().  Use it to specify the real interest rate (%/yr) used to amortize the capital costs of transmission lines built endogenously. The default value is the global discount rate, which can be edited from the Settings: Costs screen.

As with other variables used in optimization modeling, this variable is only available for optimized scenarios.  It is not visible in Current Accounts.