Building energy prediction and management

Exploring potential for residential energy saving in New York using developed lightweight prototypical building models based on survey data in the past decades

Pengyuan Shen, Zheng Wang, Ying Ji

2021

Sustainable Cities and Society

Exploring potential for residential energy saving in New York using developed lightweight prototypical building models based on survey data in the past decades

The primary energy use of residential buildings in the future in NY.

Summary

This study develops a bottom-up model using RECS data and SimBldPy to assess regional residential energy-saving potential in New York. Calibrated with 1993–2015 data, it optimizes 11 ECMs via Sobol analysis, identifying 48–62% primary energy reduction by 2040 through building-specific strategies and population-projected scenarios, offering actionable pathways for sustainable residential energy planning. 

Abstract

In this research, a method of developing a model for predicting the energy saving potential of regional residential buildings has been presented. This model is predicated on a bottom-up methodology in representing and understanding the physical properties of the residential buildings in the region. The Residential Energy Consumption Survey (RECS) database is taken advantage to provide modeling inputs for the building modeling of the five developed archetypical building types. Different secondary energy supply systems are then distinguished and modeled by a developed lightweight building simulation tool - SimBldPy. The model is calibrated and validated based on energy use data from 1993 to 2015. It is It is used for the optimization of eleven selected energy conservation measures (ECM) to find the best potential scenario for equivalent primary energy for residential buildings in New York state (NY). Best combinations of ECM parameters are discerned for each building type by Sobol sensitivity analysis. The optimal regional energy use scenario is found after coupling the population projection. It is indicated that the saving potentials of the state-level primary energy use for different building types range from 48 % to 62 % compared with the baseline scenario at the end of 2040 in NY.

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Publication Details

Journal

Sustainable Cities and Society

Publication Year

2021

Authors

Pengyuan Shen, Zheng Wang, Ying Ji

Categories

Building energy prediction and management