Alberto González-Martínez

• PhD
• University of Leon

A resilient photovoltaic system, which comprises the joint use of photovoltaic solar panels and electrochemical storage that is capable of operating both with and without grid connection, is capable of providing an added service both during normal grid-connected operation and when a blackout occurs (as opposed to a traditional solar system, which i...

This manuscript proposes to study different cases that require the use of renewable energies in addition to diesel generators and energy storage systems with the aim of increasing the resilience of a microgrid feeding critical facilities. The aim of the work here presented is to quantify the benefits provided by an improvement of the energy resilie...

By using various smart sensors integrated in a global domotic system, a proper solar thermal management is executed. The goal is to properly manage solar energy for heating swimming pool using various devices installed at home. Swimming pools are a necessity in many communities. In summer, they are a source of refreshment. However, maintaining a sw...

Microgrids integrate various renewable resources, such as photovoltaic and wind energy, and battery energy storage systems. The latter is an important component of a modern energy system, as it allows the seamless integration of renewable energy sources in the grid. The research here presented aimed to develop an integrated review using a systemati...

Spain was one of the pioneers in the deployment of wind energy systems worldwide and thus since 2014 has a potential for repowering that reaches between 3.3 and 8.7 GW in 2021 (12%–32% of its current installed wind capacity). However, despite the technical and economic advantages, we have observed little interest from promoters in the repowering of...

The success of the Energy Communities not only relies on technology development, where impressive improvements have been made in the last few years, but also in the economic feasibility. Otherwise, the sustainability of any project can be compromised. It is well known that, in the power systems and energy management field, techno-economic decisions...

In this chapter we present the fundamentals of the Levelized Cost of Energy (LCOEn) focusing on renewable power plants and multi-vector energy systems. After having introduced the basic formulation for the LCOEn, we extend its definition to polygeneration systems, hybrid systems (generators working in parallel with energy storage devices as a singl...

In this chapter we present the results of the calculation of the LCOEn for three representative case studies. The first case study is the Smart Polygeneration Microgrid (SPM) at the Savona Campus of the University of Genoa (Italy), a low voltage microgrid which includes both thermal and electrical generators and loads. The second case study is the...

Energy Communities can help to satisfy our energy needs in a more sustainable and efficient manner. Since 2019, the European Union is strongly promoting their development; amoung the European countries, Spain and Italy are taking a leading role in this paradigm change. However, additional regulatory and technical steps must be carried out to move i...

In the current context of mandatory growth of renewable energy sources for electrical supply, in order to reduce CO2 emissions in the process of electricity generation, it is worth interest to evaluate the feasibility of the deployment of new large solar photovoltaic production facilities. This study seeks to analyze the costs and benefits of this...

Fracking is a technology used for the extraction of shale gas contained in rocks on the Earth’s surface. The main characteristic of this method is that it consists of injecting pressurized water into the ground, thus creating a series of fractures through which the gas comes out to be collected later. Fracking has a number of both socio-economic an...

Currently, district energy systems allow long-distance distribution of energy and the use of renewable energies, increasing their interest in the fight against global warming and the energy crisis. This paper presents the current deployment of heat and cold distribution networks in Spain in order to analyze their technical and economic potential, o...

This paper focuses on an analysis of the current situation of distillation and reverse osmosis technologies and their relationship with renewable energies, to the extent that there is a strong trend in the use of distillation and reverse osmosis technologies. Large-scale seawater desalination using renewable energy is not developed, so a detailed s...

This manuscript proposes to study different cases that require the use of renewable energies in addition to diesel generators and energy storage systems with the aim of increasing the resilience of a microgrid feeding critical facilities. The aim of the work here presented is to quantify the benefits provided by an improvement of the energy resilie...

Solar photovoltaic (PV) plants coupled with storage for domestic self-consumption purposes seem to be a promising technology in the next years, as PV costs have decreased significantly, and national regulations in many countries promote their installation in order to relax the energy requirements of power distribution grids. However, electrochemica...

Climate change conditions in the last decades have derived in a significant reduction of rivers’ levels, irregularity of rainfall and, thus, difficulties in accessing to drinkable water. This situation is especially dramatical in islanded environments, such as the Canary Islands in Spain, where these restrictions to water resources have conducted t...

Solar Photovoltaic (PV) energy generation will be one of the main energy generation technologies in the inner future thanks to the recent and significant reduction of involved costs. One of the most promising and lowest cost technologies is the thin-film PV modules technology. Their currently lower performance than single-Si PV modules is compensat...

Agricultural and livestock biogas exploitation trough co-digestion power plants is still poorly deployed in Europe -e.g., in Spain, this Renewable Energy Source (RES) represents only the 0.17% of installed RES capacity- although most authors agree and even EU Directive 2009/28/EU stipulates that biogas and this type of energy can contribute to a re...

The aim of this study is to evaluate the application of the main hazardous waste management techniques in mining operations and in dumping sites being conscious of the inter-linkages and inter-compartment of the contaminated soils and sediments. For this purpose, a systematic review of the literature on the reduction or elimination of different pot...

Most countries in Europe are going under a significant transformation process from carbonized power energy sources to renewable and sustainable ones to feed their increasing demands. European Union targets on its energy roadmap states that by 2030, a reduction of 40% of CO2 emissions regarding the 1990 levels must be done and full transition must b...

The latest revisions in April 2018 of the 2010/31/UE and 2012/27/UE Directives on Energy Efficiency and Energy Savings respectively, point out the need of the development of smart energy indexes for buildings with the aim to (i) supervise the energy consumption on the building sector -that currently represents up to one third of the total final ene...

The promotion of the development of co-digestion power plants will be intensified in many European Union member states as the main target of the Union concerning energy generation is complete decarbonisation by 2050. This potential expansion prompts the need for optimal resources allocation according to several techno-economical parameters, highlig...

Health Services building stock is usually the top energy consumer in the Administrative sector, by a considerable margin. Therefore, energy consumption supervision, prediction, and improvement should be carried out for this group in a preferential manner. Most prior studies in this field have characterized the energy consumption of buildings based...

Municipal waste management has a great impact on the sustainability of human processes and green policies, especially in urban sites. Although it could be achieved the full separation of the reusable and recyclable items and the complete elimination of the organic material present in it, many waste components must still be processed in waste treatm...

It is well known that working photovoltaic (PV) plants show several maintenance needs due to wiring and module degradation, mismatches, dust, and PV cell defects and faults. There are a wide range of theoretical studies as well as some laboratory tests that show how these circumstances may affect the PV production. Thus, it is mandatory to evaluate...

It is well known that working PV plants show several maintenance needs due to wiring and modules degradation, mismatches, dust and PV cells defects and faults. There are a wide range of studies that show the theoretical and some laboratory tests of how these circumstances may affect the PV production. Thus, it results mandatory to evaluate the whol...

The European Higher Education Framework makes mandatory the teaching of practical skills to university students at all competence levels. This implies a review of the traditional teaching methodologies and the adoption of active ones where the student plays the main role in the teaching-learning process. However, this is not an easy task and we req...

Como profesores de enseñanzas técnicas en las ramas energética y eléctrica, hemos detectado un descenso del rendimiento del alumnado motivado principalmente por una falta de interés y compromiso con las asignaturas y sus contenidos. Además venimos observando que los alumnos no relacionan de forma adecuada los contenidos abordados en las diferentes...

This paper presents a self-designed simulator cabinet intended to analyse the electrical properties and various types of electrical faults in Very High Voltage AC Power Transmission Lines (400 kV) through a Low Voltage (400 V) Pi model. Three different lengths of aerial power line (46 km, 92 km and 138 km) are modelled and simulated by calculating...

Different countries all around the world are modernizing their irrigation infrastructures to provide more effective and efficient solutions for irrigation. Modernized systems can save up to 50% of used water in traditional systems and improve harvest production. These systems work as pressurized systems requiring pumping stations for the operation....

Con objeto de poder garantizar el abastecimiento de energía a su nueva planta de fabricación de papel, dentro de las instalaciones actuales que la planta papelera posee y dado que la cogeneración existente para dicha planta es insuficiente, necesitando del aporte de la red exterior, es por lo que la planta papelera ha decidido, de acuerdo con la co...