Techno-economic analysis of DC power distribution in commercial buildings

Vagelis Vossos, Daniel Gerber, Youness Bennani, Richard Brown and Chris Marnay

Applied Energy, 2018, vol. 230, issue C, 663-678

Abstract: Improvements in building end-use efficiency have significantly reduced the energy intensity of new buildings, but diminishing returns make it a challenge to build very-low energy buildings cost-effectively. A largely untapped efficiency strategy is to improve the efficiency of power distribution within buildings. Direct current (DC) distribution with modern power electronics has the potential to eliminate much of the power conversion loss in alternating current (AC) building distribution networks that include photovoltaics and DC end uses. Previous literature suggests up to 15% energy savings from DC power distribution in very energy efficient buildings with onsite generation and battery storage. This paper extends prior energy modeling of DC versus AC distribution in buildings, to consider the cost of implementing DC systems on a life-cycle basis.

Keywords: Direct current; DC distribution; Techno-economic analysis; Commercial building; DC microgrid (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (13)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:230:y:2018:i:c:p:663-678

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DOI: 10.1016/j.apenergy.2018.08.069

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