Phase One of San Diego Gas and Electric’s Digital Billboard Project “Digital Billboard Use in California: ET14SDG8011” consisted of a description of digital billboards’ technology, preliminary energy profile, and a California market characterization. The final report,...

The purpose of this project was to conduct laboratory testing on the Indirect/Direct Evaporative Cooler (IDEC) to characterize its performance across typical cooling season weather conditions in climate zones 7 and 10.  The IDEC provides cooling very efficiently using only two sets of fans and...

This project evaluates market-ready connected plug load devices for opportunities in plug load programs. Unlike previous approaches that focus only on the programmatic or technology side, the approach used in this study evaluates the intersectionality between technical capability and program...

The objective of this project was to evaluate the possibilities for Demand Response (DR) using connected ecosystems currently available in the market. Current residential demand response programs focus on the control of single communicating devices such as Direct Load Control (DLC) switch connected...

For purposes of this project, a vendor managed BMS was selected, that focuses on fast food restaurants, other quick service restaurants, and convenience stores with significant on-site refrigeration and heating, ventilation, and air conditioning (HVAC) equipment. Other controllable building systems...

This IOU Pilot/ET Project had three main goals:Demonstrate the technical feasibility of ZNE retrofits in public K-14 schools statewide through 13-18 geographically and demographically diverse projects.Disseminate lessons learned regarding the technical design process and the implementation process...

Energy storage technologies – and battery energy storage systems (BESS) in particular – have become increasingly popular across global markets over the last five years. BESS technology is now commonly hailed as a panacea solution to help address numerous problems with legacy electric...

This study demonstrated how existing constant air volume (CAV) RTUs may approximate a variable air volume (VAV) system to increase efficiency and comfort for the building’s occupants. Given that 60% of the U.S. commercial floor space is served by CAV RTUs, these dynamic air balancing systems...

Pacific Gas and Electric Company (PG&E) implemented a Zero Net Energy (ZNE) Production Builder Demonstration that supported six builders in California in designing and monitoring a ZNE house. Each builder received technical support from start to finish to upgrade one of their existing...

This project created algorithms predicting the performance of drain water heat recovery devices as a function of their installed angle. The algorithms use the same process as previous Pacific Gas and Electric (PG&E) drain water heat recovery projects1. Four representative DWHR devices, two...