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Hello. I'm using Energyplus 9.2 on a building model (located in NY) that has different windows facing all 4 directions. I have been trying to observe several parameters. The sunrise and sunset is at 60 degrees to 330 degrees (0 degree is at North). So, 1. We should observe high solar gain on the south window all day long than the north window. But the obtained values suggest that only there is only 10% difference South>North. Shouldn't we expect more? 2. The (total) solar radiation heat gain exactly follows the site radiation curve of the day, but shouldn't we expect more heat in the morning at East and at West in the afternoon? The values don't say so (east>west consistently by 8-15%.

List of Parameters I have tried: a) Surface Outside Face Incident Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2] b) Surface Window Transmitted Solar Radiation Rate,hourly; !- Zone Average [W] c) Surface Inside Face System Radiation Heat Gain Rate per Area,hourly; !- Zone Average [W/m2]

I evaluate them at each timestep, not hourly. Thanks.

Hello. I'm using Energyplus 9.2 on a building model (located in NY) that has different windows facing all 4 directions. I have been trying to observe several parameters. The sunrise and sunset is at 60 degrees to 330 degrees (0 degree is at North). So, 1. We should observe high solar gain on the south window all day long than the north window. But the obtained values suggest that only there is only 10% difference South>North. Shouldn't we expect more? 2. The (total) solar radiation heat gain exactly follows the site radiation curve of the day, but shouldn't we expect more heat in the morning at East and at West in the afternoon? The values don't say so (east>west consistently by 8-15%.

List of Parameters I have tried: a) Surface Outside Face Incident Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2] b) Surface Window Transmitted Solar Radiation Rate,hourly; !- Zone Average [W] c) Surface Inside Face System Radiation Heat Gain Rate per Area,hourly; !- Zone Average [W/m2]

I evaluate them at each timestep, not hourly. Thanks.

Hello. I'm using Energyplus 9.2 on a building model (located in NY) that has different windows facing all 4 directions. I have been trying to observe several parameters. The sunrise and sunset is at 60 degrees to 330 degrees (0 degree is at North). So, 1. So,

1. We should observe high solar gain on the south window all day long than the north window. But the obtained values suggest that only there is only 10% difference South>North. Shouldn't we expect more? 2. more?
2. The (total) solar radiation heat gain exactly follows the site radiation curve of the day, but shouldn't we expect more heat in the morning at East and at West in the afternoon? The values don't say so (east>west consistently by 8-15%.

List of Parameters I have tried: a) tried:

• Surface Outside Face Incident Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2] b) [W/m2]
• Surface Window Transmitted Solar Radiation Rate,hourly; !- Zone Average [W] c) [W]
• Surface Inside Face System Radiation Heat Gain Rate per Area,hourly; !- Zone Average [W/m2]

I evaluate them at each timestep, not hourly. Thanks.

Hello. I'm using Energyplus 9.2 on a building model (located in NY) that has different windows facing all 4 directions. I have been trying to observe several parameters. The sunrise and sunset is at 60 degrees to 330 degrees (0 degree is at North). So,

1. We should observe high solar gain on the south window all day long than the north window. But the obtained values suggest that only there is only 10% difference South>North. Shouldn't we expect more?
2. The (total) solar radiation heat gain exactly follows the site radiation curve of the day, but shouldn't we expect more heat in the morning at East and at West in the afternoon? The values don't say so (east>west consistently by 8-15%.

List of Parameters I have tried:

• Surface Outside Face Incident Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2]
• Surface Window Transmitted Solar Radiation Rate,hourly; !- Zone Average [W]
• Surface Inside Face System Radiation Heat Gain Rate per Area,hourly; !- Zone Average [W/m2]

[W/m2] I evaluate them at each timestep, not hourly. Thanks.hourly.

Link to the IDF: https://drive.google.com/file/d/11NUekeB4c6VKvixSlsG5QH9V15Qu1One/view?usp=sharing

I used Albany, NY weather file and referred to www.suncalc.org for sun position references. Thanks in advance.