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ejhw authored Feb 3, 2022
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Features
- Report the annual peak use and timing using the quantities of interest measure ([#458](https://github.com/NREL/resstock/pull/458))
- Major change to most occupant-related schedules. Occupant activities are now generated on-the-fly and saved to .csv files used by Schedule:File objects. Schedules are generated using time-inhomogenous Markov chains derived from American Time Use Survey data, supplemented with sampling duration and power level from NEEA RBSA data, as well as DHW draw duration and flow rate data from Aquacraft/AWWA data ([#348](https://github.com/NREL/resstock/pull/348))
- Major change to most occupant-related schedules. Occupant activities are now generated on-the-fly and saved to .csv files used by Schedule:File objects. Schedules are generated using time-inhomogenous Markov chains derived from American Time Use Survey data, supplemented with sampling duration and power level from NEEA RBSA data, as well as DHW draw duration and flow rate data from Aquacraft/AWWA data [(see pre-print for details)](https://arxiv.org/abs/2111.01881) ([#348](https://github.com/NREL/resstock/pull/348))
- Update the dependencies for heating and cooling setpoint tsvs (Setpoint, Has Offset, Offset Magnitude, and Offset Period) to IECC climate zone ([#468](https://github.com/NREL/resstock/pull/468))
- Allow heating fuel to be defined by Public Use Microdata Area (PUMA) rather than State ([#474](https://github.com/NREL/resstock/pull/474))
- Distinguish between vacant and occupied dwelling units using PUMS data ([#473](https://github.com/NREL/resstock/pull/473))
- Update heating fuel distributions to be by Public Use Microdata Area (PUMA) rather than State ([#474](https://github.com/NREL/resstock/pull/474))
- Restructure HVAC housing characteristics to 1) simplify the structure, 2) allow for integrating more local data sources, 3) update reference years for HVAC and refrigerator ages and efficiencies from 2009 to 2018, 4) add assumption comments to all HVAC-related housing characteristics, 5) improve Room AC efficiency distributions using ENERGY STAR saturation data, and 6) fix some incorrect assignment of Option=None heating systems ([#478](https://github.com/NREL/resstock/pull/478))
- Increase roofing material options; update roofing material tsv files to include these new options ([#485](https://github.com/NREL/resstock/pull/485))
- Update foundation type from the [Building Foundation Design Handbook](https://www.osti.gov/biblio/6980439-building-foundation-design-handbook) published in 1988 to RECS 2009 ([#492](https://github.com/NREL/resstock/pull/492))
- Synchronize weather between ResStock and ComStock which increases the number of weather stations from 215 to 941 ([#507](https://github.com/NREL/resstock/pull/507))
- Update Occupants per unit from RECS 2015 to PUMS 5-yr 2017 ([#509](https://github.com/NREL/resstock/pull/509]))
- Based on RECS 2015, separate the plug load equations for single-family detached, single-family attached, and multifamily buildings ([#471](https://github.com/NREL/resstock/pull/471))
- Allow for plug load energy consumption to vary by Census Division and include additional "diversity" multiplier in plug load equations ([#511](https://github.com/NREL/resstock/pull/511))
- Lighting saturations based on RECS 2015 with new building type and spatial dependencies ([#510](https://github.com/NREL/resstock/pull/510]))
- Introduce premium water heaters and heat pump water heats into building stock, differentiate between central and in unit water heating, and split water heater fuel and efficiency into different housing characteristics ([#513](https://github.com/NREL/resstock/pull/513))
- Separate electric supplemental heating from total electric heating in output reporting ([#512](https://github.com/NREL/OpenStudio-BuildStock/pull/512))
- Introduce premium water heaters and heat pump water heaters into building stock, differentiate between central and in-unit water heating, and split water heater fuel and efficiency into different housing characteristics ([#513](https://github.com/NREL/resstock/pull/513))
- Separate heat pump electric supplemental heating from total electric heating in output reporting ([#512](https://github.com/NREL/OpenStudio-BuildStock/pull/512))
- Update the duct leakage "total" to "to outside" conversion to be based on ASHRAE Standard 152 ([#532](https://github.com/NREL/resstock/pull/532))
- Allow for flexible weather regions based on weather data available and introduce TMY3 weather files for the new weather format ([#525](https://github.com/NREL/resstock/pull/525))

Fixes
- Based on RECS 2015, separate the plug load equations for single-family detached, single-family attached, and multifamily buildings ([#471](https://github.com/NREL/resstock/pull/471))
- Fix for pseudo-random number generator that was generating non-deterministic occupancy schedules ([#477](https://github.com/NREL/resstock/pull/477))
- Iterate all spaces in a thermal zone when checking for zone type; fixes missing infiltration for protruding garages in 1-story homes ([#480](https://github.com/NREL/resstock/pull/480))
- Update spatial distribution of units based on total dwelling unit counts rather than occupied unit counts ([#486](https://github.com/NREL/resstock/pull/486))
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