Table of Contents
Energy Insights Opinion
In This Report
Situation Overview
Applications
Method Specifics
Predictive Modeling Techniques
Logistic Regression
Discriminant Analysis
CHAID
Table: Summary of Predictive Modeling Techniques
Accuracy and Error Rates
Figure: Type I and Type II Errors
General Comments About Modeling
Case Study 1: San Diego Gas & Electric and Central AC
Background and Setup
Logistic Regression Results
Table: Summary of Logistic Regression Models Predicting the Presence of Central AC: SDG&E Case Study
Figure: Predicted Error Rates and Accuracy for Central AC Using Logistic Regression: SDG&E Case Study
Table: Comparison of Logistic Regression Results with Classification Probabilities of 0.5 and 0.4: SDG&E Case Study
Discriminant Analysis Results
Table: Summary of Discriminant Analysis Models Predicting the Presence of Central AC: SDG&E Case Study
CHAID Results
Figure: Partial CHAID Tree for Central AC Model: SDG&E Case Study
Comparison of Methods for Central AC Data
Table: Comparison of Logistic Regression, Discriminant Analysis, and CHAID Models Predicting the Presence of Central AC: SDG&E Case Study
Follow-Up Real-World Application
Case Study 2: Alliant Energy and Electric Heat
Background and Setup
Defining the Criterion Variable
Overall Modeling Approach
Logistic Regression Results
Table: Logistic Regression and Discriminant Analysis Models Predicting the Presence of Electric Heat: Alliant Energy Case Study
Figure: Predicted Error Rates and Accuracy for Electric Heat Using Logistic Regression: Alliant Energy Case Study
Discriminant Analysis Results
CHAID Results
Figure: CHAID Tree for Electric Heat Model: Alliant Energy Case Study
Comparison of Methods for Electric Heat Data
Lessons Learned
Future Outlook
Essential Guidance
Actions to Consider
Learn More
Related Research
Synopsis