Connected Water Heater Load Shifting and Energy Efficiency Evaluation for the Southeast: Winter Laboratory Assessment, Final Report

Primary Author(s)

• Florida Solar Energy Center
• Karen Fenaughty, Florida Solar Energy CenterFollow

Secondary Author(s)

Parker, Danny; Colon, Carlos; Vieira, Robin

Report Number

FSEC-CR-2114-21

URL

https://publications.energyresearch.ucf.edu/wp-content/uploads/2021/06/FSEC%E2%80%90CR%E2%80%902114%E2%80%9021.pdf

Keywords

Heat Pumps; Water Heating; Peak Demand; Water heater; Load shifting; Energy efficiency; Heat pump water heaters; Electric resistance water heaters

Abstract

The University of Central Florida's FSEC Energy Research Center (FSEC) and Pacific Northwest National Laboratory (PNNL) are conducting laboratory electrical load shifting experiments using the CTA-2045-A standard to demonstrate the viability of grid-connected heat pump water heaters (HPWH), compared to electric resistance water heaters (ERWH), in providing load shifting in the Southeastern United States (U.S.). The investigation applied different CTA-2045 shed and critical peak (CP) control command designs under two different water draw profiles. The highly-controlled laboratory experiments were conducted on four HPWHs and one ERWH from December 2020 through February 2021.

The research aimed to evaluate the load shifting potential of grid-connected HPWHs in a high-impact region. A secondary objective was to evaluate energy efficiency implications of HPWHs compared with ERWHs that comprise greater than 73% of water heaters in the Southeastern U.S. (DOE/EIA, 2015).

Date Published

6-30-2021

Identifiers

1

Subjects

Water heaters; Electric power consumption; Energy consumption; Heat pumps; Resistance heating

Local Subjects

Heat Pumps; Buildings - Peak Demand; Water Heating

Type

Text; Document

Format

application/pdf

Collection

FSEC Energy Research Center® Collection

STARS Citation

Florida Solar Energy Center and Fenaughty, Karen, "Connected Water Heater Load Shifting and Energy Efficiency Evaluation for the Southeast: Winter Laboratory Assessment, Final Report" (2021). FSEC Energy Research Center®. 1.
https://stars.library.ucf.edu/fsec/1