PG&E’s code readiness subprogram collects data on energy efficiency measures and technologies that will support more robust advocacy in future code cycles rulemakings as well as inform voluntary energy efficiency programs. As part of a twelve-month field evaluation of an advanced...

Increased electrification of residential end use fuel types are expected as a result of activities promoting achievement of Zero Net Energy (ZNE) buildings. Because of this, there is much interest in the opportunities associated with electric water heaters. Retrofit controls are available for water...

Evaluates a smart water heater controller for energy efficiency in a controlled lab setting.  The product is a internet connected, learning controller that installs on existing gas/electric storage water heaters that meet specific manufacturer specifications.  The manufacturer also...

High efficiency conveyor best-available technologies. The energy and water savings potential at 70% nominally versus conventional conveyor dishwashers installed in commercial kitchens is promising. The real-world savings per installation is actually greater as many older dishwashers are poorly...

CO2 refrigerant heat pumps will be installed and monitored, while providing combined space and water heating in existing homes. Two study sites will be located within PGE service territory, representing Northern California climate zones for the broader Pacific Northwest sample. Performance will be...

Xuan Luo,[1] Tianzhen Hong,1 Mary Ann Piette,1 Yixing Chen1Building Technology and Urban Systems DivisionLawrence Berkeley National LaboratoryThis research developed load shape benchmarking using the energy use data of 2,353 small- and medium-sized commercial buildings in California. The load shape...

Under the auspices of PG&E’s Zero Net Energy (ZNE) Production Builder Demonstration, Meritage Homes built a 2,047 square foot ZNE home in Hayward, CA. This report describes the results from monitoring the occupied home for a full year.Actual site energy use was compared to two models: one...

The Zero Net Energy Production Builder Demonstration project provides guidance to five residential home builders on building to specifications that enable a home to achieve ZNE, including assistance with design options, building practices and modeling...

Joint utility project that:  1)Estimates the number and types of labs in California; 2)Estimates the number and types of energy-consuming and water-consuming equipment used in California labs; 3)Assesses operational and behavioral opportunities for efficiencies in how laboratory equipment in...

Under the auspices of PG&E’s Zero Net Energy (ZNE) Production Builder Demonstration, PulteGroup built a 2,359 square foot ZNE home in Brentwood, CA with a semi-conditioned attic and an air source heat pump. This report describes the results from monitoring the occupied home for a full...