Detailed PV daily lifetime loss arrays not being assigned correctly

[cpaulgilman]

Enabling AC or DC lifetime simulations from a default case without changing the array values results in a simulation error about the length of the array: exec fail(pvsamv1): Length of the lifetime daily DC losses array must be equal to the analysis period * 365 days/year

Applies to Detailed PV and PV Battery configurations.

Several potential issues here to investigate:

• Default arrays for dc_lifetime_losses and ac_lifetime_losses are not correct length

• UIObject property on Degradation AC DC Lifetime Daily UI form need to be updated to match widgets for inputs browser.

• on_change() function called twice for en_dc_lifetime_losses

[cpaulgilman]

Also need to check default values of degradation variables for all configurations:

degradation

No default degradation for all LCOE Calculator and None

degradation = [0.5] for:

• PVWatts

• High-X Concentrating PV

degradation = [0] for all remaining configs

dc_degradation

dc_degradation = [0.5] for:

• Flat Plate PV all except LCOE Calculator and None

• Fuel Cell all

• PV Battery all

No default dc_degradation for all other configs

generic_degradation

generic_degradation = [0] for all Generic Battery

No default generic_degradation for all other configurations.

dc_lifetime_losses, ac_lifetime_losses

ac_lifetime_losses = [0], dc_lifetime_losses = [0] for:

• Flat Plate PV, except LCOE Calculator and None

• PV Battery

No default ac_lifetime_losses or dc_lifetime_losses for all others

Default should be array of 365 * analysis_period.

Note that lifetime daily losses are not enabled for Fuel Cell configurations.