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In small to medium sized offices, spaces are commonly conditioned by a single-zone HVAC unit with one thermostat in the control zone. However, a zone can consist of multiple spaces, making it difficult to meet the individual comfort needs of each space. Therefore, single-zone units in commercial...

Heat recovery ventilator (HRV) technology was evaluated as part of an EPRI research project funded by the California Energy Commission, titled the “Development and Testing of the Next[1]Generation Residential Space Conditioning system for California” [CEC EPC-14-021 project]. As part of the...

The objective of the PG&E Code Readiness Program’s retrofit DOAS, VRF and Networked Lighting Controls Demonstration at the UC Davis Facilities Management, Energy Conservation Office was to develop cost, performance, and occupant satisfaction data from a field demonstration site for a...

The main objective was to shift the energy use profile of water heaters on a daily basis from the 4 to 9 pm peak period to lower-cost hours thus, avoiding congestion on the grid and aligning with time of use (TOU) rates. The study assessed two different water heater technologies: smart control...

The problem of accurately baselining loads is an increasingly complex problem. This report describes and evaluates the several baselining methods for demand response events. Seven different methods are explored during this study, including Ten-in-Ten and Three-in-Ten with and without adjustments as...

This solar control system is a load shifting technology that shifts power loads for A/C motors back and forth between solar PV panels during the day-time hours and the power-grid during the night-time. Evaluate the effectiveness and efficiency of a new proprietary solar control technology to...

Optimizing HVAC demands for residential cooling systems is becoming increasingly important in California as the electric grid becomes increasingly powered by renewable energy generation. Hydronic systems in general are particularly amenable to load shifting because they can be coupled to thermal...

The use of physical water treatment technologies for water-cooled cooling towers is growing the U.S. and has been more widely used primarily in the EU where restrictions on chemical discharge and environmental policies encouraging lower chemical usage are wide spread. Physical Water Treatment...

The motor technology examined in this study is an evaporator fan that uses a permanent magnet, synchronous AC motor (PMSM) with a new control design. These motors are inherently more energy efficient than all of the previously discussed motor technologies due to a number of design improvements....