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2022-01-18 19:07:26 -0600 edited answer Tank Vs Tankless electric DHW consumption

The BEopt result seems reasonable to me. The difference between electric tankless and tank water heaters is not that gr

2022-01-18 19:06:13 -0600 edited answer Tank Vs Tankless electric DHW consumption

The BEopt result seems reasonable to me. The difference between electric tankless and tank water heaters is not that gr

2022-01-18 19:05:39 -0600 received badge  Rapid Responder (source)
2022-01-18 19:05:39 -0600 answered a question Tank Vs Tankless electric DHW consumption

The BEopt result seems reasonable to me. The difference between electric tankless and tank water heaters is not that gre

2022-01-18 15:21:49 -0600 commented question EMS code for thermostat

Perhaps start by using the Output:EnergyManagementSystem, with "Verbose" for the EnergyPlus Runtime Language Debug Outpu

2022-01-18 15:21:07 -0600 commented question EMS code for thermostat

Perhaps start by using the Output:EnergyManagementSystem, with "Verbose" for the EnergyPlus Runtime Language Debug Outpu

2022-01-12 16:50:14 -0600 edited answer Inside/outside SURFACE convection algorithm for individual zones in OpenStudio

I think you might be confused. The zone inside/outside convection algorithm sets the convection algorithm for every surf

2022-01-12 16:49:47 -0600 received badge  Rapid Responder (source)
2022-01-12 16:49:47 -0600 answered a question Inside/outside SURFACE convection algorithm for individual zones in OpenStudio

I think you might be confused. The zone inside/outside convection algorithm sets the convection algorithm for every surf

2022-01-11 12:03:30 -0600 edited question Issue with internal source construction in OpenStudio

Issue with internal source construction in OpenStudio for the first time I'm trying to set up a model with passive cooli

2022-01-10 15:30:59 -0600 commented question Ground coupling - small building floor slab

If you want Kiva inputs added to the OpenStudio Application, you can create a new issue here and request it.

2022-01-10 09:21:44 -0600 commented question Missing required property 'file_name'

Make sure that the "File Name" in the OS:External:File object of the .osm file is "schedules.csv" if that file is in the

2022-01-07 11:41:59 -0600 received badge  Rapid Responder (source)
2022-01-07 11:41:59 -0600 answered a question Beopt Heat/Cool Unmet Hours

Some unmet hours is to be expected. BEopt autosizes HVAC systems based on ACCA Manual J, which uses 1%/99% design temper

2022-01-07 11:03:34 -0600 commented question Top of Slab Insulation In BEOpt Retrofit Energy Model DRAMATICALLY Increasing Loads Not Met?!!!

You don't need python to edit the file, you just need to open it in a text editor (like notepad).

2022-01-06 09:46:37 -0600 commented question Pitch roofs floorspaceJS

Duplicate of https://unmethours.com/question/36588/how-to-create-pitched-roofs-with-floorpsacejs/

2022-01-05 12:07:37 -0600 commented question Top of Slab Insulation In BEOpt Retrofit Energy Model DRAMATICALLY Increasing Loads Not Met?!!!

The version of EnergyPlus that BEopt uses has a (somewhat random) bug in the foundation heat transfer model that you mig

2022-01-03 10:42:34 -0600 commented question Energy Plus output heating energy and rate

Can you provide an output file w/ heating output values that demonstrates the issue? You can provide a link to a file vi

2022-01-03 10:40:10 -0600 edited answer U-Value for Simple Glazing in OpenStudio Results

The linked screenshot compares OSApp v1.2.1 (SDK v321, E+ v9.5) vs v1.3.0 (SDK v330, E+ v9.6) input vs output (Benchma

2021-12-27 15:04:04 -0600 commented question Incorrect results in enduse_timeseries

Can you give an example of more specifically what doesn't match?

2021-12-27 10:42:40 -0600 commented question Incorrect results in enduse_timeseries

@Vishak You can use Google Drive or Dropbox to upload files.

2021-12-16 19:16:06 -0600 commented question BEopt infrastructure cost

Can you provide some more detail and/or an example of the situation you're thinking about? Is it related to new construc

2021-12-14 20:10:14 -0600 edited question OpenStudio Application: HVAC Plant Loop, VAVs and Thermal Zones

OpenStudio Application: HVAC Plant Loop, VAVs and Thermal Zones Hello, I have a building that I am working on that has

2021-12-14 13:47:23 -0600 commented question Source position in Internal Source Construction

Same as https://unmethours.com/question/65890/source-position-in-internal-source-construction/

2021-12-14 13:47:08 -0600 commented question Source position in Internal Source Construction

Same as https://unmethours.com/question/65890/source-position-in-internal-source-construction/

2021-12-09 13:00:59 -0600 commented answer Adding a Load Profile for an AirLoop

Another option might be to use the Unitary Equipment's Sensible Load Request EMS actuator.

2021-12-08 14:15:00 -0600 received badge  Rapid Responder (source)
2021-12-08 14:15:00 -0600 answered a question IDD file for EnergyPlus 8.1.0.009

You can find IDD files across all versions of EnergyPlus here. So this is the IDD file specific to EnergyPlus 8.1.

2021-12-01 13:43:37 -0600 commented answer PythonPlugin examples do not work with runtime API

Note that EnergyPlus will run fine on that Mac, but you need to compile it yourself for the time being. See https://gith

2021-11-30 20:30:07 -0600 received badge  Rapid Responder (source)
2021-11-30 20:30:07 -0600 answered a question PythonPlugin examples do not work with runtime API

I assume that you are using a version of EnergyPlus prior to 9.6? It appears that this limitation has been addressed in

2021-11-29 12:54:49 -0600 commented question difference Site Outdoor Air Drybulb Temperature and Zone Outdoor Air Drybulb Temperature

Did you paste the wrong values? The differences between the two columns of numbers above are not 0.00325.

2021-11-19 09:50:19 -0600 commented question PTAC with electric cooling

What do you mean by electric cooling if not DX cooling?

2021-11-18 15:05:15 -0600 commented question Modeling half levels or "garden levels" in BEOpt

You'll have to stick with 34x28 for the finished basement -- I wouldn't expect that to make a huge difference in results

2021-11-18 11:22:20 -0600 commented question Modeling half levels or "garden levels" in BEOpt

There are some similar questions here and here with proposed workarounds.

2021-11-15 18:37:49 -0600 answered a question Misc. site energy use

The simplest approach is probably to zero out miscellaneous loads one at a time from the input screen and see which one

2021-11-15 18:37:49 -0600 received badge  Rapid Responder (source)
2021-11-15 09:36:51 -0600 edited answer Why is Site:WaterMainsTemperature Correlation from Weather File locked on one temperature for all times and locations?

I am able to reproduce the bug and have filed an EnergyPlus bug report. In the meantime, you'll have to use the Correlat

2021-11-15 09:36:29 -0600 answered a question Why is Site:WaterMainsTemperature Correlation from Weather File locked on one temperature for all times and locations?

I am able to reproduce the bug and have filed an EnergyPlus bug report. In the meantime, you'll have to use the Correlat

2021-11-11 17:26:40 -0600 commented question Why is Site:WaterMainsTemperature Correlation from Weather File locked on one temperature for all times and locations?

@nigusse I think you added this to EnergyPlus. Any idea?

2021-11-11 12:51:44 -0600 commented question OS App 1.2.1 crashing when running simulation

Seems to be the same error message as here: https://unmethours.com/question/42037/openstudio-results-measure-optional-no

2021-11-11 12:49:56 -0600 answered a question Numerical equations with EMS

If I'm understanding correctly, you do not need to use a trend variable just to retrieve a variable's value from a previ

2021-11-11 12:49:56 -0600 received badge  Rapid Responder (source)
2021-11-09 11:47:49 -0600 commented question beopt, How do you upload TMY3 data to the software downloaded from the NSRDB data viewer

BEopt uses EPW (EnergyPlus Weather) files, which you can download from https://energyplus.net/weather

2021-11-05 15:34:09 -0600 commented answer Can you access autosized values from PythonPlugin?

To add on to this, if there are additional internal variables that you would find helpful, you can request them for a fu

2021-11-05 13:21:52 -0600 answered a question Running OS using local build Openstudio-standards

There is an example of using a local version of openstudio-standards in the documentation for the Command Line Interface

2021-11-05 13:21:52 -0600 received badge  Rapid Responder (source)
2021-11-02 19:27:11 -0600 received badge  Rapid Responder (source)
2021-11-02 19:27:11 -0600 answered a question heat pump water heater in a multifamily building with, a basemen

We have a fix in place for the next version of BEopt. In the meantime, you can fix this by making the following two chan

2021-10-30 09:18:32 -0600 commented question total energy consumption by zone

Same question answered here: https://unmethours.com/question/593/total-zone-energy-consumption-by-fuel-type-in-energyplu