Relationship Between Load Profiles and Grid Parity in the Residential Solar Energy

Sanz, Gema Calleja; Domenech, Bruno; Nadal, Jordi Olivella

doi:10.6036/9279

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to analyse the techno-economic performance of PV-battery residential facilities, a simulation model is developed based on previous works [41]. As input data, the model considers the household characteristics, including the solar radiation and the load profile, as well as techno-economic details about the equipment to be installed, the utility grid tariff and global indicators such as the interest rate and the technology devaluation.…”

Section: Overall Perspectivementioning

confidence: 99%

Residential Photovoltaic Profitability with Storage under the New Spanish Regulation: A Multi-Scenario Analysis

Domenech¹,

Calleja²,

Olivella³

2021

Energies

View full text Add to dashboard Cite

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.

show abstract

Section: Overall Perspectivementioning

confidence: 99%