Photovoltaic self-consumption regulation in Spain: Profitability analysis and alternative regulation schemes

Prol, Javier López; Steininger, Karl W.

doi:10.1016/j.enpol.2017.06.019

Cited by 94 publications

(27 citation statements)

References 14 publications

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“…In the present analysis, the share of self-consumption was a critical variable that had already been analyzed by previous research. According to literature ( Choudhary and Srivastava, 2019 ; Coria et al, 2019 ; D'Adamo, 2018 ; López Prol and Steininger, 2017 ), the following parameters were selected: Purchase price of electricity (p c ) increased/decreased by 2 cent€/kWh. The optimistic scenario had a value of 21 cent€/kWh, while the pessimistic scenario was equal to 17 cent€/kWh.…”

Section: Resultsmentioning

confidence: 99%

“…While there have been numerous economic analyses of PV plants in the literature, attention should turn now to new solutions to support their development. Low profitability presents a challenge to the realization of new PV systems ( Mah et al, 2018 ), and profits in mature markets depend mainly on the share of self-consumption ( Chiaroni et al, 2014 ; López Prol and Steininger, 2017 ; McKenna et al, 2018 ; Reis et al, 2019 ). In fact, avoided energy costs are typically more profitable than the produced electricity, itself.…”

Section: Introductionmentioning

confidence: 99%

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The post COVID-19 green recovery in practice: Assessing the profitability of a policy proposal on residential photovoltaic plants

2020

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The development of photovoltaic (PV) energy has been very significant in the last years, thanks to cost reductions brought about by policy actions favouring the transition from a fossil to a green society. As this transition is likely to stretch over the long term, policy support must be programmed accordingly. In light of the human and economic shock effected by COVID-19, the Italian government has offered a tax deduction of 110% over 5 years for the realization of new PV residential plants. We propose to integrate this tool with the application of a bonus for energy produced and self-consumed, in order to support the development of decentralized systems. In this paper, we provide an economic assessment of a 3 kW plant in the context of several policy scenarios. The results underline the great opportunity for consumers to tackle climate change whilst obtaining relevant economic profits. The study can be replicated on a global scale.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The post COVID-19 green recovery in practice: Assessing the profitability of a policy proposal on residential photovoltaic plants

2020

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“…Concerning the revenue calculation, since there is a diversity of regulations and incentives among the examined locations, the selected scenario for all countries is that the price the prosumer gets for selling to the grid is the spot market price. This does not reflect current reality; for example, France has a feed-in tariff instead of net metering, Spain removed subsidies for excess electricity to the grid for residential consumers in 2015 [39], and Sweden currently has a tax rebate for electricity fed into the grid. However, it allows for a clearer intercomparison and is a possible future scenario for all locations.…”

Section: Discussionmentioning

confidence: 99%

Impact of Boundary Conditions on the Performance Enhancement of Advanced Control Strategies for a Residential Building with a Heat Pump and PV System with Energy Storage

et al. 2020

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Operational control strategies for the heating system of a single-family house with exhaust air heat pump and photovoltaic system and "smart" utilization of energy storage have been developed and evaluated in a simulation study. The main aim and novelty of this study is to evaluate the impact on the benefit of these advanced control strategies in terms of performance (energy use and economic) for a wide range of boundary conditions (country/climate, occupancy and appliance loads). Short-term weather data and historic price data for the same year as well as stochastic occupancy profiles that include the domestic hot water load are used as boundary for a parametric simulation study for the system modeled in detail in TRNSYS 17. Results show that the control using a forecast of dynamic electricity price leads to greater final energy savings than those due to the control using thermal storage for excess PV production in all of the examined locations except Sweden. The impact on self-consumption using thermal storage of heat produced by the heat pump using excess PV production is found to decrease linearly with increasing household electricity for all locations. A reduction in final energy of up to 842 kWh year −1 can be achieved just by the use of these algorithms. The net energy cost for the end-user follows the same trend as for final energy and can result in cost savings up to 175 € year −1 in Germany and Spain due to the use of the advanced control.Energies 2020, 13, 1413 2 of 25 increase the renewable share of the heating system by means of increasing the self-consumption (SC) of electricity produced by photovoltaics (PV), and by reducing the final energy (FE) purchased from the grid. Moreover, another objective is to reduce the net cost of the final energy using smart control based on forecasts of dynamic electricity price and short-time horizon weather data. In a larger context, at the grid level, the main objective is to match the electricity load of the heating system with the electricity production from renewable sources in order to limit power exchange and reduce the stress to the grid.A number of studies have been conducted in order to propose technical solutions about how to utilize the renewable electricity production in a smart way and how to control the heating or cooling demand. Psimopoulos et al. [4] developed predictive rule-based controls for smart utilization of thermal and electrical storages and analyzed the results for a case study in Sweden. Arteconi et al.[5] utilized the thermal energy storage (TES) of hot water tank, in particular, with heating distribution systems that have a low thermal inertia as radiators, and implemented demand response algorithms based on real-time electricity prices to improve the system operation. However, despite their achievements in load curtailment, higher use of energy and accordingly higher cost of electricity resulted. Thur et al. [6] showed the potential of overheating control using the thermal mass of the building with radiant floor heating together with s...

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“…In this case study, the energy demand of the separate units was considered as one combined demand (as in Action 2), which would be partially covered by the PV panels (the grid will provide the rest). The exportation to the grid of the energy excess produced by the PVs (surplus) is discussed considering the most common FiT (feed-in tariff) approaches, named as net metering and net billing [27].…”

Section: Action 3: Integration Of Photovoltaic Panels (Pv)mentioning

confidence: 99%

Economic Optimization of the Energy Supply for a Logistics Center Considering Variable-Rate Energy Tariffs and Integration of Photovoltaics

et al. 2019

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The energy supplied by photovoltaic (PV) panels connected to the grid creates more flexibility for energy management; however, oversizing the PV system may result in an energy surplus, an essential factor to be considered during energy efficiency optimization. The economic analysis of energy supply systems for buildings and industry should include a detailed feasibility analysis and a life cycle perspective. Simulations were performed to quantify the potential savings when the excess of PV energy (surplus) is supposed to be exported to the grid by considering the net metering and net billing approaches. Our objective was to evaluate the electrical demand of a logistics center with pre-design modeling and simulation, and determine the adequate system configurations by considering the life cycle costing (LCC). We established a baseline and three alternative economic scenarios for optimization. Combining the use of TRNSYS 180 Simulation Studio and its optimization library component, GenOp (Generic Optimization Program), we simulated different options of grid energy contracts considering the variable tariffs and the integration with PVs. Based on the LCC, a single-objective optimization (SOO) process was performed. This approach allowed us to envisage possible configurations, reducing up to a quarter of annual grid energy consumption that represents savings of around 21% for the LCC in a timeframe of 20 years, reaching up to 39% when the export of the PV surplus energy is considered. The payback period of investments is below six years for the optimal scenarios.

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Photovoltaic self-consumption regulation in Spain: Profitability analysis and alternative regulation schemes

Cited by 94 publications

References 14 publications

The post COVID-19 green recovery in practice: Assessing the profitability of a policy proposal on residential photovoltaic plants

The post COVID-19 green recovery in practice: Assessing the profitability of a policy proposal on residential photovoltaic plants

Impact of Boundary Conditions on the Performance Enhancement of Advanced Control Strategies for a Residential Building with a Heat Pump and PV System with Energy Storage

Economic Optimization of the Energy Supply for a Logistics Center Considering Variable-Rate Energy Tariffs and Integration of Photovoltaics

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