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Hello,

My model consists of a fairly complex WSHP system with boilers and cooling towers. 40+ spaces are served by WSHPs. The model also has daylighting in many spaces. It takes approx. 18 minutes for the simulation to complete. The simulation jumps to "Processed 1 base script and 2 merged scripts" fairly quickly (approx. 62% progress). Then it takes a long time to go to the next step. Most of the time is taken by E+ while sizing systems ("Calculating System sizing") and calculating daylighting factors (I think based on the progress shown in OS). Does that seem reasonable? I am not used to seeing a simulation take so long, so want to share this and get feedback.

The simulation snapshots are saved in the file upload section (OS Simulation time.docx)

Pranav

Hello,

My model consists of a fairly complex WSHP system with boilers and cooling towers. 40+ spaces are served by WSHPs. The model also has daylighting in many spaces. It takes approx. 18 minutes for the simulation to complete. The simulation jumps to "Processed 1 base script and 2 merged scripts" fairly quickly (approx. 62% progress). Then it takes a long time to go to the next step. Most of the time is taken by E+ while sizing systems ("Calculating System sizing") and calculating daylighting factors (I think based on the progress shown in OS). Does that seem reasonable? I am not used to seeing a simulation take so long, so want to share this and get feedback.

The simulation snapshots are saved in the file upload section (OS Simulation time.docx)

section.C:\fakepath\OS-3.png(/upfiles/14581392437980734.png) C:\fakepath\OS-1.png(/upfiles/1458139202950102.png) Pranav

Hello,

My model consists of a fairly complex WSHP system with boilers and cooling towers. 40+ spaces are served by WSHPs. The model also has daylighting in many spaces. It takes approx. 18 minutes for the simulation to complete. The simulation jumps to "Processed 1 base script and 2 merged scripts" fairly quickly (approx. 62% progress). Then it takes a long time to go to the next step. Most of the time is taken by E+ while sizing systems ("Calculating System sizing") and calculating daylighting factors (I think based on the progress shown in OS). Does that seem reasonable? I am not used to seeing a simulation take so long, so want to share this and get feedback.

The simulation snapshots are saved in the file upload section.C:\fakepath\OS-3.png(/upfiles/14581392437980734.png) C:\fakepath\OS-1.png(/upfiles/1458139202950102.png) Pranav

Hello,

My model consists of a fairly complex WSHP system with boilers and cooling towers. 40+ spaces are served by WSHPs. The model also has daylighting in many spaces. It takes approx. 18 minutes for the simulation to complete. The simulation jumps to "Processed 1 base script and 2 merged scripts" fairly quickly (approx. 62% progress). Then it takes a long time to go to the next step. Most of the time is taken by E+ while sizing systems ("Calculating System sizing") and calculating daylighting factors (I think based on the progress shown in OS). Does that seem reasonable? I am not used to seeing a simulation take so long, so want to share this and get feedback.

The simulation snapshots are saved in the file upload section.C:\fakepath\OS-3.png(/upfiles/14581392437980734.png) C:\fakepath\OS-1.png(/upfiles/1458139202950102.png) (/upfiles/1458139202950102.png)

I found one thing. When I add the E+ measure for the utility cost calculation (Tariff Selection Time and Date Dependent with Maximum Demand Charge), the simulation takes a lot more time. See image 1 - only 5 minutes compared to 18 minutes in image 2. It's surprising, but that's what's happening!

Pranav