Current state and optimal development of the renewable electricity generation mix in Spain

Gómez-Calvet, Roberto; Martı́nez-Duart, J.M.; Serrano-Calle, Silvia

doi:10.1016/j.renene.2018.12.072

Cited by 22 publications

(9 citation statements)

References 47 publications

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“…In the following analysis, we propose the total substitution of coal, which is currently in the European agenda policies. This methology has already been used in a different context by us [36].…”

Section: A Proposed Optimal Model Towards the Total Phaseout Of Coal mentioning

confidence: 99%

On the Assessment of the 2030 Power Sector Transition in Spain

Gómez-Calvet

Martı́nez-Duart

2019

Energies

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Recently, the European Union has recognized that more ambitious plans in reducing emissions are needed in order to comply with the target 1.5–2° warming limit for this century. Along this line, the main objective of this paper is to study the evolution of the power sector in Spain, taking into account the Paris Agreement and the further European Union Directives. In particular, we have studied the substitution by renewable energies of all coal power plants before 2030. For this study, we have applied linear programming techniques to optimize the deployment of the additional wind and solar resources. If, in addition to the substitution of coal power plants, we also consider the expected increase in demand for the period 2019–2030, we find that the present park of renewables should be increased by a factor of about 115%. We have also statistically analyzed the amount of surpluses and shortages in energy, assuming that the demand curve would have a daily shape similar to the present one. As a result, we have found that additional storage capabilities of around 55 GWh for 11 h would be needed in order not to waste more than 25% surplus energy by curtailment. As for backup, we propose in a first step to use the overwhelming amount of gas combined cycle units which are available.

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Section: A Proposed Optimal Model Towards the Total Phaseout Of Coal mentioning

confidence: 99%

On the Assessment of the 2030 Power Sector Transition in Spain

Gómez-Calvet

Martı́nez-Duart

2019

Energies

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“…Many national energy system studies are being conducted in order to find the optimal generation mix under conditions of large RES penetration. Some of them can be found in [14][15][16][17][18][19][20][21][22][23][24][25][26][27]. The most recent research on long-term electricity resource planning models is concerned with including operational aspects (generation constraints regarding ramping, minimum stable output levels, cycling costs, operating reserves) [14,15,[28][29][30][31][32][33][34][35], transmission network expansion [14][15][16]26,36], environmental policy requirements [15,17,24], higher temporal resolution of chronologically ordered generation and consumption data [15,26,34,36,37], and modelling linkages between the electricity and the transportation and heating sectors [17,25,38] with different levels of detail depending on the planning goal and the computational tractability of the problem.…”

Section: Introductionmentioning

confidence: 99%

“…Energy models which incorporate modelling of flexibility requirements are the models implemented in commercial software such as TIMES [49], OSeMOSYS [50] and PLEXOS [51]. National-scale energy system optimization models (ESOMs) are usually modeled as single-region systems which use aggregated representation of energy resources, as in [14,[16][17][18][19][20][21][22][23][24][25]27]. In [14], the generation and transmission expansion planning model, which includes an effective embedded linear relaxation of the unit commitment problem and representative days, is used to find the optimal RE mix which minimizes both investment and operational costs over a planning horizon divided into discrete planning periods.…”

Section: Introductionmentioning

confidence: 99%

Novel Planning Methodology for Spatially Optimized RES Development Which Minimizes Flexibility Requirements for Their Integration into the Power System

Škrbić

Đurišić

2023

Energies

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An optimization model which determines optimal spatial allocation of wind (WPPs) and PV power plants (PVPPs) for an energy independent power system is developed in this paper. Complementarity of the natural generation profiles of WPPs and PVPPs, as well as differences between generation profiles of WPPs and PVPPs located in different regions, gives us opportunity to optimize the generation capacity structure and spatial allocation of renewable energy sources (RES) in order to satisfy the energy needs while alleviating the total flexibility requirements in the power system. The optimization model is based on least squared error minimization under constraints where the error represents the difference between total wind and solar generation and the referent consumption profile. This model leverages between total energy and total power requirements that flexibility resources in the considered power system need to provide in the sense that the total balancing energy minimization implicitly bounds the power imbalances over the considered time period. Bounding the power imbalances is important for minimizing investment costs for additional flexibility resources. The optimization constraints bound the installed power plant capacity in each region according to the estimated technically available area and force the total energy production to equal the targeted energy needs. The proposed methodology is demonstrated through the example of long-term RES planning development for complete decarbonization of electric energy generation in Serbia. These results could be used as a foundation for the development of the national energy strategy by serving as a guidance for defining capacity targets for regional capacity auctions in order to direct the investments in wind and solar power plants and achieve transition to dominantly renewable electricity production.

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“…Garcı́a-Gusano et al developed a set of prospective LCA studies of electricity production technologies of the Spanish mix from 2014 to 2050, where the characteristics of new power plants are assumed as a set of integer values. Gómez-Calvet et al studied the optimal development of the renewable electricity generation mix in Spain (2030) using linear programming optimization, and they found that intensive participation of renewable energies with uncertain energy sources requires robust backup. It is important to be aware that although the use of renewables may be environmentally attractive and economically feasible if a power system has a large share of intermittent renewable technologies, it can pose significant operational challenges and stress on other natural resources. − …”

Section: Introductionmentioning

confidence: 99%

Sustainable Energy Transition Considering the Water–Energy Nexus: A Multiobjective Optimization Framework

Tovar-Facio

Guerras

Ponce-Ortega

et al. 2021

ACS Sustainable Chem. Eng.

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Electricity is becoming one of the main forms of the final energy demand in the world; therefore, energy transition is one of the most important issues to achieve the internationally agreed target to limit global warming below 2 °C. This work addressed the optimal mix of renewable energy technologies to substitute any existing power system. A flexible multiobjective mixed-integer linear programming model was developed that can be adapted to any national power system. The proposed optimization framework considers simultaneously technical operating constraints, availability of renewable energy sources in different places, freshwater consumption as a function of technologies and location characteristics, direct and lifecycle greenhouse gas emissions, and total annual costs. The peninsular electricity system (PES) of Spain was chosen to show the applicability of the model due to the imminent decommission of its coal and nuclear thermal plants and its ambitious CO2 reduction targets. Results show the location, type, capacity, and generation structure of the optimal energy mix with existing and new power plants. The proposed energy transition shows a potential reduction of up to 37.5 and 49.7% in water consumption and greenhouse gas emission, respectively, with respect to the current system.

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Current state and optimal development of the renewable electricity generation mix in Spain

Cited by 22 publications

References 47 publications

On the Assessment of the 2030 Power Sector Transition in Spain

On the Assessment of the 2030 Power Sector Transition in Spain

Novel Planning Methodology for Spatially Optimized RES Development Which Minimizes Flexibility Requirements for Their Integration into the Power System

Sustainable Energy Transition Considering the Water–Energy Nexus: A Multiobjective Optimization Framework

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