This project is proposed to research and analyze the market of Infrared (IR) heating technologies to provide actionable recommendations of technologies and gaps for further study by the Statewide Gas Emerging Technologies (GET) program. This project will cover IR heating systems in industrial and...

Several past studies tested air-leakage rates in multifamily buildings and dwelling unit compartmentalization rates, but most of these studies were performed in colder climate states and are not directly transferable to California. Therefore, there is a general lack of California specific...

Abstract: In 2021 PG&E’s Code Readiness Program research team (Research Team) initiated an evaluation and data collection of nonresidential hydronic heat pump (HP) heating equipment across California. The intent of the data collection effort was to better understand how hydronic HPs perform...

With rising housing costs in California, the prevalence of affordable manufactured housing has been growing, especially in areas affected by recent wildfires. Many homeowners find manufactured housing to be a means to get them back in a home much faster, and much more affordably. For years,...

The current California Building Standards Code, Title 24, does not include minimum ventilation requirements for residential heat pump water heaters (HPWH). Building owners across California are installing HPWHs in small closets without adequate ventilation, leading to high...

Heat pumps provide significant energy savings and a path for electrification, but they typically use refrigerants with a high global warming potential (GWP), which can degrade the greenhouse gas reductions from energy savings. The California Air Resources Board (CARB) has regulations that will...

Heat Pump space conditioning systems (HP) are a key tool in meeting the state’s GHG goals, however, recent data from field M&V studies has shown significant energy penalty from the incorrect operation of crankcase heaters (CCH), defrost controls and standby power usage – up to 50% of the annual...

This study aims to analyze and identify energy-efficient equipment and processes related to natural gas consumption in California crematoriums. The objective is to understand the current state of natural gas usage crematories, innovative technologies, and provide recommendations for implementing...

The Palm Springs Case Study is one of eight buildings evaluated under a Code Readiness field monitoring research effort to better understand real-world performance of dedicated outdoor air systems (DOAS) in California. The Palm Springs site was renovated in 2021 with a fully decoupled HVAC system...

This report summarizes building energy modeling analysis completed over a period of time from 2022 through 2023 as part of PG&E’s Code Readiness program effort to better understand air-leakage rates in recently constructed multifamily buildings in California. The building energy modeling in...