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Residential Photovoltaic Profitability with Storage under the New Spanish Regulation: A Multi-Scenario Analysis
Content Provider | MDPI |
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Author | Domenech, Bruno Calleja, Gema Olivella, Jordi |
Copyright Year | 2021 |
Description | In recent years, solar price drops and regulations have helped residential users to invest in grid-connected photovoltaic (PV) facilities. In Spain, a novel law promotes self-consumption by discounting electricity fed into the grid from the utility bill. However, the performance of PV-based facilities depends on diverse factors. The contribution of this paper is to evaluate the techno-economic performance of such installations for different considerations linked to the Spanish law. A simulation model is used to examine different representative cities, load profiles and alternative objectives: maximising profitability and self-sufficiency. For profit maximisation, results show that load profile variations entail PV size changes up to 5 kWp for the same location, together with huge economic and self-sufficiency differences. In contrast, the solar radiation and compensation rate have a more limited influence. For self-sufficiency maximisation, the economic performance drops close to EUR 0, as benefits are used to double the PV size, buy batteries and reach close to 70% self-sufficiency. Finally, a sensitivity analysis shows a limited impact of the utility tariff and the technology cost on the PV size, but a relevant influence on the benefits. These results can help investors and families to quantify the risks and benefits of domestic self-consumption facilities. |
Starting Page | 1987 |
e-ISSN | 19961073 |
DOI | 10.3390/en14071987 |
Journal | Energies |
Issue Number | 7 |
Volume Number | 14 |
Language | English |
Publisher | MDPI |
Publisher Date | 2021-04-03 |
Access Restriction | Open |
Subject Keyword | Energies Industrial Engineering Residential Solar Photovoltaic Self-consumption Battery Storage Self-sufficiency Techno-economic Analysis Spain |
Content Type | Text |
Resource Type | Article |