This report documents the evaluation of the energy and on-peak demand savings attributable to the eco+ software feature that was rolled out to ecobee thermostats in the San Diego Gas & Electric Co. (SDG&E) service territory. The implementation of the feature was conducted on a randomized...

This project’s goals are to test optimization of connected thermostats and other loads via voice commands based on TOU rate peak times and customer preferences. Voice interactions related to energy (usage, estimated bills, best times to use appliances, etc.) will undergo evaluation to determine...

The purpose of this project was to evaluate the impact of low refrigerant levels on the cooling and heating seasonal energy performance of variable capacity heat pump (VCHP) systems operating in California homes.Prior studies have found that incorrect refrigerant levels are common in field...

Demonstration platform to educate and demonstrate multiple emerging technologies for Indoor AG...

This study investigated the technical and market feasibility and consumer acceptance of residential sensor-based range hoods to automate range hood operation to improve indoor air quality (IAQ) and occupant health. Goals of the study included:Identifying existing and emerging products that use...

The objective of the study is to assess the costs and benefits of real-time rates, including required infrastructure, manufacturer interest, and customer impacts. The research approach will evaluate tariffs and their characteristics, demonstrate how these tariffs can be communicated to different...

This report presents the results of PG&E’s Smart Thermostat Time-of-Use (TOU) Automation Study with a bring your own thermostat program design. The study provided incentives to residential customers who allowed PG&E to reduce or shift their electricity use in the 4–9 pm peak...

A large majority of industrial facilities in California generate heat as part of their manufacturing processes. Much of this heat is rejected into the environment at varying temperatures above the ambient levels.   This project will demonstrate and evaluate the integration of waste heat...

This study was designed to help those involved with development and implementation of California’s Title 24, Part 6, Building Energy Efficiency Standards (“Title 24”) better understand real-world performance of dedicated outdoor air systems (DOAS). DOAS ventilation, which...

The Pacific Gas and Electric Central Valley Research Homes (CVRH) project is the product of multiple years of effort by leading energy efficiency researchers and represents a significant investment of funding from the California Energy Commission, California Investor Owned Utilities (IOUs), and...