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How does ResStock calculate conditional probability distributions in housing_characteristics tsv files?

asked 4 years ago

sashadf1's avatar

updated 4 years ago

For reference I am using ResStock v2.2.4 and OpenStudio/PAT v2.9.0, with EnergyPlus v9.2.

I am trying to model a particular community in Georgia. I have 3 different AMY EPW files; a 2008 EPW file for Blairsville GA, a 2008 EPW file for Andrews NC, and a 2008 EPW file for Franklin NC.

The options I have determined to be candidates in Location.tsv in housing_characteristics directory are Asheville AP (NC), Athens AP (GA), and Chattanooga AP (TN), based on their proximity to the desired location I am modelling.

In order for PAT to recognize the EPW files, they were renamed before being zipped and uploaded to dropbox to create direct download links.

Asheville Location TSV configuration --> 0996216_US_NC_Buncombe_37021_0-20000-0-72315_35.45_-82.54_NSRDB_2.0.1_AMY EPW file name.

Chattanooga Location TSV configruation --> 0939546_US_TN_Hamilton_47065_0-20000-0-72324_35.05_-85.22_NSRDB_2.0.1_AMY EPW file name.

Athens Location TSV configuration --> 0979938_US_GA_Clarke_13059_0-20000-0-72311_33.97_-83.34_NSRDB_2.0.1_AMY EPW file name.

If I ran two simulations, all else held equal, I would get different results depending on what configuration I was using in Location TSV. I noticed that Geometry Foundation Type.tsv and Heating Fuel.tsv had Dependency=Location, meaning that their conditional probability distributions are conditional on whatever value/configuration is in Location.tsv. When I changed these conditional probability distributions to possess the same values, I would get the same results.csv output.

For example, see:

Geometry Foundation Type TSV change

Heating Fuel TSV before edit

Heating Fuel TSV after edit

How does ResStock calculate the probability distributions seen above for Heating Fuel and Foundation Type? I would like to get a probability distribution that is representative of my area.

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answered 3 years ago

updated 3 years ago

As of 2.4.0, all of the tsv files have comments at the bottom listing the source(s) and assumptions for the probability distribution data.

e.g., https://github.com/NREL/resstock/blob...

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answered 3 years ago

sashadf1's avatar

updated 3 years ago

The probability distributions use data from the Residential Energy Consumption Survey (RECS) which is administered by the EIA.

https://www.eia.gov/consumption/resid...

The ResStock team has queried the RECS data to create the distributions; how exactly that is done I do not know.

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Asked: 4 years ago

Seen: 178 times

Last updated: Jul 26 '21