Profitability of household photovoltaic self-consumption in Spain

Fernández, Juan Manuel Roldán; Payán, Manuel Burgos; Santos, J.R.

doi:10.1016/j.jclepro.2020.123439

Cited by 49 publications

(28 citation statements)

References 15 publications

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“…Moreover, regarding energy demand, household consumption data representative of all Spanish households during 2019 was used. Likewise, it was considered that the average Spanish household is covered by the type of regulated contract 2.0 without hourly discrimination, which contracted a power of 3.27 kW and which consumed 2240 kWh/year [25]. For this case, the hourly profiles of demand are characterised and published by Red Eléctrica Española [43].…”

Section: Resultsmentioning

confidence: 99%

“…Since the Spanish regulation came into force, there have been several studies that present a changing and hopeful horizon regarding the increase and profitability of selfconsumption in Spain. For an average household, it is more profitable to become a prosumer (1.5-2.0 kWp) than to remain just a consumer [25]. At the same time, another study [10] shows the different options that a prosumer can currently implement to increase the profitability of their installation, detailing the level of increase based on the percentage of self-consumption implemented.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

et al. 2021

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PV self-consumption can contribute positively to the spread of PV and, therefore, to the progress of renewable energies as a key element in a decarbonized energy model. However, the policies of each country regarding the promotion of this type of renewable technology is fundamental for their growth. Despite the high number of sunshine hours registered in Spain, self-consumption in this country has not been authorized until recently. In this new context, this work presents a systematic study of the profitability limits of a self-consumption PV installation under different conditions of installed peak power, orientation and inclination of the PV panels and level of obstruction of the installation. It was proved that, for the case of study (Córdoba, Spain), the maximum profitability was achieved for PV panels oriented to the south and with an inclination of 15° whereas the most unfavourable conditions are those of PV panels with an orientation and inclination of 180° and 90°, respectively. Furthermore, when the level of obstruction increases the maximum of the Net Present Value of self-consumptions PV installations decreases and this optimal value is achieved for installations with lower power. Finally, empirical adjustment equations have been developed to estimate the profitability parameters of self-consumptions PV installations as a function of their design variables.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

et al. 2021

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“…However, less attention has been paid to the impact of low compensation rates on both the value and sizing of PV-battery systems. In Spain, there are profitability assessments that study the impact of the current regulation on self-consumption in residential buildings [24,40] (see Table 1). These studies analyse the profitability of a representative Spanish house under average conditions, maximising an economic objective (the net present value or the internal rate of return).…”

Section: Literature Reviewmentioning

confidence: 99%

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

Domenech¹,

Calleja²,

Olivella³

2021

Energies

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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.

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“…Interest in LECs rises from the various benefits the concept of LEC presents. First of all, on the economical side, LECs produce reductions on the electric bills of residential and commercial consumers [3]; this even has the potential to fight against energy poverty [4][5][6]. In addition, deployment of self-generation installations enhances competition and reduces wholesale market prices [7].…”

Section: Introductionmentioning

confidence: 99%

“…On the technical side, LECs produce power generation closer to the consumption point. Thus, reducing power losses [3], leverages the potential flexibility existing at the residential level [7], and increasing the resilience of the users without having to overinvest in grid expansions [11,12].…”

Section: Introductionmentioning

confidence: 99%

Local Energy Communities in Spain: Economic Implications of the New Tariff and Variable Coefficients

et al. 2021

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The European Union advocates for legislative support to local energy communities. Measures include the promotion of dynamic energy allocation and discriminatory electricity tariffs such as the recent Spanish framework. However, the impact of these normative changes is not yet evaluated. This paper inquires into the impact of dynamic allocation coefficient and different electricity tariffs on the profitability of local energy communities. To do so, a linear optimisation model is developed and applied to real consumer data in Spain around a variable capacity photovoltaic generation plant. Comparing the economic performance of the static or variable power allocation under the effect of changing electricity tariffs. While both measures are beneficial, the new electricity tariffs result in larger profitability increases than the planned variable coefficients. The combination of measures allows for profitability improvements of up to 25% being complementary measures. However, installations that maximise the potential for electricity generation are still not as profitable due to the low purchase price of surplus energy. While discriminatory electricity price tariffs and variable allocation coefficients are positive measures, further measures are needed for these communities to install generation plants as large as the potential that each case allows.

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Profitability of household photovoltaic self-consumption in Spain

Cited by 49 publications

References 15 publications

Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

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

Local Energy Communities in Spain: Economic Implications of the New Tariff and Variable Coefficients

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