Increased PV Utilisation from DC Distribution: Quantification of Geographical Location Impact
Paper in proceeding, 2020

In this paper, the performance of a direct current (DC) distribution system is modelled and compared for a single-family residential building with a conventional alternating current (AC) system to quantify the potential energy savings and gains in PV utilization. The modelling is also made for two different climates to quantify the impact of the geographical location. Results show that the system losses are reduced by 19-46% and the PV utilization increased by 3.9-7.4% when using a DC distribution system compared to an AC equivalent, resulting in system efficiency gains in the range of 1.3-8.8%. Furthermore, it is shown that the geographical location has some effect on the system's performance and PV utilization, but most importantly the grid interaction is paramount for the performance of the DC topology.



System Performance

DC-DC Converter

Grid Interaction


Patrik Ollas

Chalmers, Electrical Engineering, Electric Power Engineering

Torbjörn Thiringer

Chalmers, Electrical Engineering, Electric Power Engineering

Caroline S Markusson

Building Services Engineering

EU PVSEC Proceedings

3-936338-73-6 (ISBN)

37th European Photovoltaic Solar Energy Conference and Exhibition
Online, Portugal,

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance




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