Next Article in Journal
Large Eddy Simulations of a Low-Swirl Gaseous Partially Premixed Lifted Flame in Presence of Wall Heat Losses
Next Article in Special Issue
Power Ripple Control Method for Modular Multilevel Converter under Grid Imbalances
Previous Article in Journal
Heat Loss Reduction Approach in Cavity Receiver Design Based on Performance Investigation of a Novel Positive Conical Scheme
Previous Article in Special Issue
A Transformerless AC-AC Converter with Improved Power Quality Employed to Step-Down Power Frequency at Output

Adoption Pathways for DC Power Distribution in Buildings †

Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720, USA
National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA
Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA
Author to whom correspondence should be addressed.
This paper is a technically extended version of a conference paper entitled “Direct-DC Power in Buildings: Identifying the Best Applications Today for Tomorrow’s Building Sector”, by a subset of the authors above, presented at the 2020 ACEEE Summer Study on Energy Efficiency in Buildings.
Academic Editor: Waqar Uddin
Energies 2022, 15(3), 786;
Received: 13 December 2021 / Revised: 15 January 2022 / Accepted: 19 January 2022 / Published: 21 January 2022
Driven by the proliferation of DC energy sources and DC end-use devices (e.g., photovoltaics, battery storage, solid-state lighting, and consumer electronics), DC power distribution in buildings has recently emerged as a path to improved efficiency, resilience, and cost savings in the transitioning building sector. Despite these important benefits, there are several technological and market barriers impeding the development of DC distribution, which have kept this technology at the demonstration phase. This paper identifies specific end-use cases for which DC distribution in buildings is viable today. We evaluate their technology and market readiness, as well as their efficiency, cost, and resiliency benefits while addressing implementation barriers. The paper starts with a technology review, followed by a comprehensive market assessment, in which we analyze DC distribution field deployments and their end-use characteristics. We also conduct a survey of DC power and building professionals through on-site visits and phone interviews and summarize lessons learned and recommendations. In addition, the paper includes a novel efficiency analysis, in which we quantify energy savings from DC distribution for different end-use categories. Based on our findings, we present specific adoption pathways for DC in buildings that can be implemented today, and for each pathway we identify challenges and offer recommendations for the research and building community. View Full-Text
Keywords: feasibility of DC power distribution; efficient buildings; direct-DC; microgrids; renewable energy feasibility of DC power distribution; efficient buildings; direct-DC; microgrids; renewable energy
Show Figures

Figure 1

MDPI and ACS Style

Vossos, V.; Gerber, D.L.; Gaillet-Tournier, M.; Nordman, B.; Brown, R.; Bernal Heredia, W.; Ghatpande, O.; Saha, A.; Arnold, G.; Frank, S.M. Adoption Pathways for DC Power Distribution in Buildings. Energies 2022, 15, 786.

AMA Style

Vossos V, Gerber DL, Gaillet-Tournier M, Nordman B, Brown R, Bernal Heredia W, Ghatpande O, Saha A, Arnold G, Frank SM. Adoption Pathways for DC Power Distribution in Buildings. Energies. 2022; 15(3):786.

Chicago/Turabian Style

Vossos, Vagelis, Daniel L. Gerber, Melanie Gaillet-Tournier, Bruce Nordman, Richard Brown, Willy Bernal Heredia, Omkar Ghatpande, Avijit Saha, Gabe Arnold, and Stephen M. Frank. 2022. "Adoption Pathways for DC Power Distribution in Buildings" Energies 15, no. 3: 786.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop