Project SummaryOccupancy-based guestroom energy management systems sense when a hotel room is occupied and adjust the energy systems — such as HVAC, lighting, and outlets — accordingly to save energy. They may turn systems completely off when a room is unoccupied or, in the case of HVAC, set back...

Project SummaryLarge office buildings in PG&E’s service territory use almost 20 percent of the commercial electricity and consume more than 12 percent of the natural gas delivered to commercial customers. A prior study found that achieving energy efficiency alone was not sufficient to motivate...

 Project Summary This project is a Technology Development effort by PG&E’s Emerging Technology Program (ETP) with the primary goal of providing a foundation for the future development of technologies to help achieve California’s long-term energy goals.  This study focuses on the...

Project SummaryThis assessment evaluates residential swimming pool cleaner energy use and efficiency.For more information, please contact the sponsoring...

The high concentration of lights in Hospital ORs leads to a significant amount of heat generated in a small space.  The cooling load of the OR can often drive the cooling provided to the entire hospital, with a significant amount of reheat needed in other areas of the hospital.  Removing...

Project SummaryA limited evaluation of two new heat pump water heaters (HPWHs) was conducted in the water heater laboratory at the PG&E San Ramon Technology Center. The objective of the testing was to investigate the operating characteristics of HPWHs in comparison with other types, and their...

Project SummaryThis report assesses the energy savings potential and attendant visual impacts of four advanced lighting sources and systems used to externally light billboards. Assessment objectives include: determining lighting energy savings, light levels and uniformity, visual impacts, and...

This report provides a technology and market assessment of emerging network control and monitoring systems in street lighting applications.  Using network control and monitoring systems with streetlights has the potential to save a significant amount of energy.  These systems offer the...

Project Summary: In the hospitality industry in the United States, card keys are used almost universally to gain entry to guestrooms and other areas of hotels.such as swimming pools, exercise rooms, and laundry areas but not as part of energy management systems. The...

This report summarizes an assessment project conducted to study the performance of light emitting diode (LED) luminaires with network controls in a street lighting application. The project included installation of LED street lights with network controls on public roadways in San Francisco Public...