Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: The discrete wavelet transformation (DWT) performed using a filter bank for multiresolution analysis of the electrical demand profiles

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: The first three levels of a DWT using the Daubechies-4 wavelet: the magnitude at a given time indicates the correlation strength at that level; units are not included for visual clarity

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Two typical building electrical demand profiles and their relative wavelet energy comparison

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Frequency plot of total wavelet entropy for each of the 4820 commercial buildings

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Dendrogram of the clustering process for the United States commercial building stock: visualization of the 4820 buildings merging into the final 114 clusters (building classes) according to the 25 features extracted from the electrical demand profiles; for visual clarity building labels not included.

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Limited portion of dendrogram (with focus on clusters 8 and 9) demonstrating merging hierarchy; dashed lines are merges not made, while the number displayed indicated log odds for merging

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Clustering heat map based on United States climate zones: CBECS uses five climate regions based on cooling and heating degree days. Darkest rectangles represent a cluster with a small number of buildings (or zero), while white rectangles represent a cluster with a large number.

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Clustering heat map based on principal building activity: CBECS classifies buildings according to their major usage, e.g., office, retail, etc. Darkest rectangles represent a cluster with a small number of buildings (or zero), while white rectangles represent a cluster with a large number.

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Clustering heat map based on square footage. Darkest rectangles represent a cluster with a small number of buildings (or zero), while white rectangles represent a cluster with a large number.

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: The building demand profile, on-site PVE generation and difference for the month of July

Date of download: 1/15/2018 Copyright © ASME. All rights reserved. From: Classification of Commercial Building Electrical Demand Profiles for Energy Storage Applications J. Sol. Energy Eng. 2013;135(3):031020-031020-10. doi:10.1115/1.4024029 Figure Legend: Energy spillage and peak demand savings as a function of energy storage parameters