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Instrumentation for Assessing DC Electrical Distribution Systems in Buildings

Conference ·
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Direct current (DC) distribution systems is emerging as a favorable option over alternating current in buildings due to its energy and non-energy benefits (e.g., efficiency, resilience, safety). However, limited guidelines exist to evaluate the DC electrical distribution infrastructure. This paper aims to fill that gap by detailing our experience with metering a building-level electrical DC distribution system. Our case study is a DC microgrid at the Direct Energy Partners Research & Development facility located in Charlotte, North Carolina. This paper presents our approach, technical challenges, and lessons learned with DC metering and instrumentation.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1882195
Report Number(s):
NREL/CP-5500-81514; MainId:82287; UUID:077b30a8-d907-41ac-a3e5-7e4961ea8d2b; MainAdminID:65114
Country of Publication:
United States
Language:
English

References (11)

Instrumentation for monitoring energy usage in buildings at Twin Rivers journal April 1978
Electrical Measurement and Verification of Energy in DC Buildings conference July 2021
Techno-economic analysis of DC power distribution in commercial buildings journal November 2018
Opportunities of Wireless Sensors and Controls for Building Operation journal September 2005
A review of trends and drivers of greenhouse gas emissions by sector from 1990 to 2018 journal June 2021
An Overview of Direct Current Distribution System Architectures & Benefits journal September 2018
Instrumentation systems for commercial building energy efficiency conference November 2011
Sensing Technologies for Monitoring Intelligent Buildings: A Review journal June 2018
Nonintrusive Load Monitoring and Diagnostics in Power Systems journal July 2008
Efficiency of DC microgrid on DC distribution system conference November 2015
A comparative study of DC and AC microgrids in commercial buildings across different climates and operating profiles conference June 2015

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Related Subjects

DC microgrids
ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
buildings
energy efficiency
instrumentation