The emerging technology (ET) presented in this report is an HVAC management system with dynamic energy and demand optimization designed for commercial rooftop units (RTUs) and split system applications. The ET replaces a traditional thermostat with multiple sensors that measure dry-bulb temperature...

A desktop study was performed to evaluate the accuracy and usefulness of an online service that infers home thermal performance characteristics from electricity consumption (from Green Button data) and weather (from the vendor’s proprietary network of stations). The service provides customers...

Advanced lighting control systems provide networked control and monitoring capabilities of connected luminaires via onboard metering and system reporting features. These advanced features allow system owners to dynamically balance visual comfort and lighting energy use. CLTC, in collaboration with...

This project evaluates the lighting performance and energy savings potential of a Lamp-style Retrofit Kit, External Driver (a solution with separate lamp and driver), combined with a Wireless Advanced Lighting Control System (ALCS) to achieve additional energy savings and DR...

The model-based predictive HVAC control enhancement saves energy by generating a predictive model of building operations, then optimizing heating, ventilation, and air conditioning (HVAC) system operations to meet these predicted loads. The specific model-based predictive HVAC control studied in...

This assessment consisted of a side-by-side comparison of two otherwise nearly-identical milk chillers; one with a finned-tube air-cooled condenser with fan cycling on pressure switches, and the other system with a microchannel air-cooled condenser. The project incrementally assessed the...

This project evaluated 10 water systems in the PG&E service territory to determine the amount of energy embedded in water supplies, perform leak audit surveys, review the effectiveness of previous leak remediation efforts (including estimation of the cost and types of leaks fixed), and estimate...

This report presents findings from a field study of an indirect evaporative air conditioner installed as a retrofit at a small restaurant in Rocklin, CA. The study broadens general understanding about application of indirect evaporative cooling systems, documents the level of performance that...

This project will verify the demand and energy savings potential of electrodeless HID over a traditional HID (existing system) at a warehouse (customer site). Light levels will be compared to the existing system. Payback and life cycle cost will also be evaluated for this technology. Technology...

Lab assessment measures the optimal compressor and supply fan speeds in a packaged air-cooled AC unit, for different combinations of cooling load and outside air temperatures. Research provides insight into right-sizing AC units for intended...