Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
It sounds like you are indeed running an annual simulation (365 days) but are confusing by the fact that EnergyPlus displays the progress of its simulation in 20 day increments (by default). This is because the ShadowCalculation's Calculation Frequency has a default value of 20 days.
Note the progress output refers to the shadow calculations:
Updating Shadowing Calculations, Start Date=03/22/2007
Continuing Simulation at 03/22/2007 for RUN PERIOD 1
If you changed this input to 1 day, you would get 365 output progress messages that are 1 day apart during the simulation -- however this will increase runtime (and affect simulation results).
I've never understood why EnergyPlus's runtime output progress is linked to this shadow calculation frequency. It seems like it could easily offer an input that governs the output progress that is independent of the shadow calculation frequency. But anyway, that's how it is.
| | 2 | No.2 Revision |
It sounds like you are indeed running an annual simulation (365 days) but are confusing by the fact that EnergyPlus displays the progress of its simulation in 20 day increments (by default). This is because the ShadowCalculation's Calculation Frequency has a default value of 20 days.
Note the progress output refers to the shadow calculations:
Updating Shadowing Calculations, Start Date=03/22/2007
Date=05/21/2007
Continuing Simulation at 03/22/2007 05/21/2007 for RUN PERIOD 1
Updating Shadowing Calculations, Start Date=06/10/2007
Continuing Simulation at 06/10/2007 for RUN PERIOD 1
If you changed this input to 1 day, you would get 365 output progress messages that are 1 day apart during the simulation -- however this will increase runtime (and affect simulation results).
I've never understood why EnergyPlus's runtime output progress is linked to this shadow calculation frequency. It seems like it could easily offer an input that governs the output progress that is independent of the shadow calculation frequency. But anyway, that's how it is.
| | 3 | No.3 Revision |
It sounds like you are indeed running an annual simulation (365 days) but are confusing confused by the fact that EnergyPlus displays the progress of its simulation in 20 day increments (by default). This is because the ShadowCalculation's Calculation Frequency has a default value of 20 days.
Note the progress output refers to the shadow calculations:
Updating Shadowing Calculations, Start Date=05/21/2007
Continuing Simulation at 05/21/2007 for RUN PERIOD 1
Updating Shadowing Calculations, Start Date=06/10/2007
Continuing Simulation at 06/10/2007 for RUN PERIOD 1
If you changed this input to 1 day, you would get 365 output progress messages that are 1 day apart during the simulation -- however this will increase runtime (and affect simulation results).
I've never understood why EnergyPlus's runtime output progress is linked to this shadow calculation frequency. It seems like it could easily offer an input that governs the output progress that is independent of the shadow calculation frequency. But anyway, that's how it is.
