Sweetwater Spectrum, a planned community of four single-story residences and a community center located in Sonoma, CA, is designed to serve adults with autism spectrum disorders. The project was initiated as one of several zero net energy demonstrations and provided the opportunity to evaluate...

The project determines energy and cost savings, particularly during idle periods, as a result of replacing existing, un-lidded char-broilers with lidded char-broilers with thermostatic controls. The project monitors energy consumption, operating conditions, and hours of operation at three sites,...

Collects energy savings, incremental costs, feasibility, conflict with other building practices for one of the measures under consideration for the 2016 T-24 standards: R-25 walls. Key problems solved: example moderate cost methods of achieving objectives, identifying and avoiding unintended...

A field evaluation was conducted to determine energy and cost savings in a restaurant’s refrigeration load as a result of replacing low-efficiency prep tables with high-efficiency prep tables.  The project monitors baseline energy consumption in eight locations, and replaces...

The focus of this case study of non-intrusive load monitoring (NILM) algorithms by four vendors at 11 non-randomly selected homes in the SDG&E region was to evaluate the rough accuracy of each algorithm in an effort to better understand the state of that industry. Whole building electrical...

Increasing California DR and PLS capabilities requires an understanding of the international, federal, and state organizations that play roles in defining policies, regulations, and mandates for DR and PLS both inside and outside of California. To this end, this scoping study explored the policies,...

This report presents the results of detailed monitoring of the Cottle Zero Net Energy (ZNE) Home over 12 months from April 1st, 2013 through March 31st, 2014. The home has been occupied during the monitoring period by a family of five who moved in February 2013. Analysis includes evaluation of ZNE...

HGW Architects is the first commercial ZNE building in San Diego. SDG&E ET collaborated with Savings by Design to make this happen. ET then conducted a comprehensive study to understand modeled vs. actual building performance. The analysis discusses data discrepancies and methods used to...

Lab testing was conducted to evaluate the efficiency at various loads for PMAC motors at the 3 and 5 HP sizes compared with Premium Efficiency Induction Motor (PEIM) technology. Lab testing found efficiency increases to be between 2% and 24% for the 3 HP motor and 4% to 24% for the 5 HP motor,...

The objective of this project was to validate energy savings associated with forced circulation pump driven technology and characterize the energy performance of thermosiphon and forced circulation engine generator block heater technologies under a field testing effort. Analysis of the field...