Article
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Increasing Energy Self-Consumption in Residential Photovoltaic Systems
Version 1
: Received: 16 April 2023 / Approved: 17 April 2023 / Online: 17 April 2023 (10:58:53 CEST)
A peer-reviewed article of this Preprint also exists.
Pater, S. Increasing Energy Self-Consumption in Residential Photovoltaic Systems with Heat Pumps in Poland. Energies 2023, 16, 4003. Pater, S. Increasing Energy Self-Consumption in Residential Photovoltaic Systems with Heat Pumps in Poland. Energies 2023, 16, 4003.
Abstract
Nowadays Air-Source Heat Pumps (ASHP) in combination with a Photovoltaic (PV) installation are a very promising option for a necessary and urgent energy transformation in European Union (EU). It is extremely important to develop solutions that will help maximize the use of energy generated from renewable energy sources (RES). Such issues include the problem of insufficient use of generated electricity in PV on-grid microinstallations in residential buildings. This paper's aim is to analyze the results of one-year-round operation of a PV array grid-connected hybrid installation with ASHP for domestic hot water (DHW) preparation in a residential building in Cracow, Poland in the context of increasing self-consumption (SC) of PV energy. Models of systems are built and simulated in Transient System Simulation Tool 18 (TRNSYS) software. Simulations were carried out for different scenarios involving different building electricity consumption profiles, PV system capacity and specified runtime management of ASHP. The novelty of this study lies in the evaluation of the impact of a certain range of conditions on the energy performance of the system, in particular on SC. The results showed that the use of ASHP, with specified runtime management, results in an increase in monthly SC values from 7 to 18%, and annual SC values up to 13%. Also determining the appropriate size of the used PV system depending on whether it is present ASHP in the installation is crucial to increase the value of the SC parameter. Overall, this study provides valuable insights into the potential benefits of PV panels and ASHP operating together, in particular on SC values.
Keywords
photovoltaics; air-source heat pumps; self-consumption; TRNSYS; hybrid installations
Subject
Chemistry and Materials Science, Chemical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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