Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Well, I can't take much credit for answering this one since I managed to get to the bottom of it only by taking offline with Ashok.
Anyway, it seems that the problem is clear: he modified the TMY weather file. In there, he replaced the solar radiation with the 2014 values from a local weather station he has access too. So the solar radiation doesn't match at all the rest of the weather conditions, and explains why the results don't make physical sense.
I suggest you simply use the 2014 TMY weather file (no edit) if you are looking for projections of energy usage.
On the other hand, if you are trying to compare the output from your eQuest model to what actually happened in 2014 (for PV production for example), I suggest you either create, or purchase (for a moderate cost it'll save you the time and you'll avoid this kind of potential mistakes), an Actual Meteorological Year (AMY) weather file. Please refer to this thread for more information.
| | 2 | No.2 Revision |
Well, I can't take much credit for answering this one since I managed to get to the bottom of it only by taking offline with Ashok.
Anyway, it It seems that the problem is clear: he modified the TMY weather file. In there, he replaced the solar radiation with the 2014 values from a local weather station he has access too. So the solar radiation doesn't match at all the rest of the weather conditions, and explains why the results don't make physical sense.
I suggest you simply use the 2014 TMY weather file (no edit) if you are looking for projections of energy usage.
On the other hand, if you are trying to compare the output from your eQuest model to what actually happened in 2014 (for PV production for example), I suggest you either create, or purchase (for a moderate cost it'll save you the time and you'll avoid this kind of potential mistakes), an Actual Meteorological Year (AMY) weather file. Please refer to this thread for more information.
| | 3 | No.3 Revision |
It seems that the problem is clear: he modified the TMY weather file. In there, he replaced the solar radiation with the 2014 values from a local weather station he has access too.
So the solar radiation doesn't match at all the rest of the weather conditions, and explains why the results don't make physical sense.
I suggest you simply use the 2014 TMY weather file (no edit) - without any edits - if you are looking for projections of energy usage.
On the other hand, if you are trying to compare the output from your eQuest model to what actually happened in 2014 (for PV production for example), I suggest you either create, or purchase (for a moderate cost it'll save you the time and you'll avoid this kind of potential mistakes), purchase* an Actual Meteorological Year (AMY) weather file. Please refer to this thread for more information.
*Note: For a moderate cost it'll save you the time and you'll avoid this kind of potential mistakes)
| | 4 | No.4 Revision |
It seems that the problem is clear: he modified the TMY weather file. In there, he replaced the solar radiation with the 2014 values from a local weather station he has access too.
So the solar radiation doesn't match at all the rest of the weather conditions, and explains why the results don't make physical sense.
I suggest you simply use the 2014 TMY weather file - without any edits - if you are looking for projections of energy usage.
On the other hand, if you are trying to compare the output from your eQuest model to what actually happened in 2014 (for PV production for example), I suggest you either create, or purchase* an Actual Meteorological Year (AMY) weather file. Please refer to this thread for more information.
*Note: For a moderate cost it'll save you the time and you'll avoid this kind of potential mistakes)mistakes
