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Guillermo Escrivá-Escrivá received his PhD in Industrial Engineering in 2009 from the Universitat Politècnica de València (UPV), Spain, where he has been a Professor in the Electrical Engineering Department since 2005. His research lines include energy efficiency, renewable energies and quality problems in power systems. Between 2000 and 2005, he worked in a large construction company as a facilities engineer. During his time as a university professor, he has collaborated in various national and European projects. He has also taught courses such circuit theory, power generation, transmission and distribution and energy systems. He has collaborated with entities from Spain and from countries such as the United States, Holland and Ecuador in different research projects. Among his publications are several teaching books, more than 20 papers in high impact research journals, and communications in international congresses. His teaching work is aimed at teaching classes as well as tutoring final degree and master projects linked to energy efficiency, energy resource management, electrical installations and intelligent management and control systems.
This paper evaluates the energy efficiency in the bakery industry toward competitiveness and sustainability through energy audits that were carried out on six bakeries located in Quito, Ecuador. Firstly, an initial meeting was held. After this, an energy survey was carried out in all areas of the bakeries. The information of the energy consumption of the facilities was collected. This was based on electricity bills, power data, equipment usage time, habits, and monthly consumption. With the energy balances, the critical points were identified, resulting in the baking process and the production activity, as those with the highest energy consumption within each establishment. Subsequently, with the indicator of electrical energy consumed per unit produced, the energy consumption by production processes and the bakery’s total energy consumption were determined. Several improvement proposals were generated for the bakery industry based on the results. Finally, it is concluded that the consumption of electrical energy in the bakery industry in Quito is efficient when compared to other bakeries, since they use less energy per unit of mass processed to produce products.
Marco Briceño-León; Dennys Pazmiño-Quishpe; Jean-Michel Clairand; Guillermo Escrivá-Escrivá. Energy Efficiency Measures in Bakeries toward Competitiveness and Sustainability—Case Studies in Quito, Ecuador. Sustainability 2021, 13, 5209 .
AMA StyleMarco Briceño-León, Dennys Pazmiño-Quishpe, Jean-Michel Clairand, Guillermo Escrivá-Escrivá. Energy Efficiency Measures in Bakeries toward Competitiveness and Sustainability—Case Studies in Quito, Ecuador. Sustainability. 2021; 13 (9):5209.
Chicago/Turabian StyleMarco Briceño-León; Dennys Pazmiño-Quishpe; Jean-Michel Clairand; Guillermo Escrivá-Escrivá. 2021. "Energy Efficiency Measures in Bakeries toward Competitiveness and Sustainability—Case Studies in Quito, Ecuador." Sustainability 13, no. 9: 5209.
Several efforts have been devoted to developing sustainable cities to address global environmental challenges and the growth of urban areas. In particular, transportation has various issues such as air pollution, noise, and traffic, which have to be addressed by collecting significant information of the traffic and road conditions of the cities. Automating the data extraction process and street network construction will allow building more useful models to study traffic behavior. This work presents a network modeling approach to identify interest points (extreme and internal) of the city, through a winner-takes-all edge trimming, and mapping the traffic flow between them. Such points can be considered as entries of an Origin-Destination matrix, where such information can be used to model traffic behavior between interest points. The case study of Quito, Ecuador is considered. Besides, to address environmental issues, this paper encourages the replacement of internal combustion taxis with electric vehicles. From the understanding of the vehicle traffic behavior, a pre-feasibility siting of electric taxi (ET) charging stations was carried out. The results will allow performing the sizing of each charging station considering electric power network constraints. This work aims to ensure a sustainable transportation system based on this crucial information.
Mario Salvador González-Rodríguez; Jean-Michel Clairand; Kevin Soto-Espinosa; Josue Jaramillo-Fuelantala; Guillermo Escriva-Escriva. Urban Traffic Flow Mapping of an Andean Capital: Quito, Ecuador. IEEE Access 2020, 8, 1 -1.
AMA StyleMario Salvador González-Rodríguez, Jean-Michel Clairand, Kevin Soto-Espinosa, Josue Jaramillo-Fuelantala, Guillermo Escriva-Escriva. Urban Traffic Flow Mapping of an Andean Capital: Quito, Ecuador. IEEE Access. 2020; 8 ():1-1.
Chicago/Turabian StyleMario Salvador González-Rodríguez; Jean-Michel Clairand; Kevin Soto-Espinosa; Josue Jaramillo-Fuelantala; Guillermo Escriva-Escriva. 2020. "Urban Traffic Flow Mapping of an Andean Capital: Quito, Ecuador." IEEE Access 8, no. : 1-1.
Microgrids have emerged as a solution to address new challenges in power systems with the integration of distributed energy resources (DER). Inverter-based microgrids (IBMG) need to implement proper control systems to avoid stability and reliability issues. Thus, several researchers have introduced multi-objective control strategies for distributed generation on IBMG. This paper presents a review of the different approaches that have been proposed by several authors of multi-objective control. This work describes the main features of the inverter as a key component of microgrids. Details related to accomplishing efficient generation from a control systems’ view have been observed. This study addresses the potential of multi-objective control to overcome conflicting objectives with balanced results. Finally, this paper shows future trends in control objectives and discussion of the different multi-objective approaches.
Óscar Gonzales-Zurita; Jean-Michel Clairand; Elisa Peñalvo-López; Guillermo Escrivá-Escrivá. Review on Multi-Objective Control Strategies for Distributed Generation on Inverter-Based Microgrids. Energies 2020, 13, 3483 .
AMA StyleÓscar Gonzales-Zurita, Jean-Michel Clairand, Elisa Peñalvo-López, Guillermo Escrivá-Escrivá. Review on Multi-Objective Control Strategies for Distributed Generation on Inverter-Based Microgrids. Energies. 2020; 13 (13):3483.
Chicago/Turabian StyleÓscar Gonzales-Zurita; Jean-Michel Clairand; Elisa Peñalvo-López; Guillermo Escrivá-Escrivá. 2020. "Review on Multi-Objective Control Strategies for Distributed Generation on Inverter-Based Microgrids." Energies 13, no. 13: 3483.
Isolated microgrids, such as islands, rely on fossil fuels for electricity generation and include vehicle fleets, which poses significant environmental challenges. To address this, distributed energy resources based on renewable energy and electric vehicles (EVs) have been deployed in several places. However, they present operational and planning concerns. Hence, the aim of this paper is to propose a two-level microgrid problem. The first problem considers an EV charging strategy that minimizes charging costs and maximizes the renewable energy use. The second level evaluates the impact of this charging strategy on the power generation planning of Santa Cruz Island, Galapagos, Ecuador. This planning model is simulated in HOMER Energy. The results demonstrate the economic and environmental benefits of investing in additional photovoltaic (PV) generation and in the EV charging strategy. Investing in PV and smart charging for EVs could reduce the N P C by 13.58%, but a reduction in the N P C of the EV charging strategy would result in up to 3.12%.
Jean-Michel Clairand; Carlos Álvarez-Bel; Javier Rodríguez-García; Guillermo Escrivá-Escrivá. Impact of Electric Vehicle Charging Strategy on the Long-Term Planning of an Isolated Microgrid. Energies 2020, 13, 3455 .
AMA StyleJean-Michel Clairand, Carlos Álvarez-Bel, Javier Rodríguez-García, Guillermo Escrivá-Escrivá. Impact of Electric Vehicle Charging Strategy on the Long-Term Planning of an Isolated Microgrid. Energies. 2020; 13 (13):3455.
Chicago/Turabian StyleJean-Michel Clairand; Carlos Álvarez-Bel; Javier Rodríguez-García; Guillermo Escrivá-Escrivá. 2020. "Impact of Electric Vehicle Charging Strategy on the Long-Term Planning of an Isolated Microgrid." Energies 13, no. 13: 3455.
The industry sector has a significant responsibility for the depletion of fossil fuels and emission of carbon dioxide. Thus, several initiatives have been implemented by the industry sector to mitigate those issues. One initiative corresponds to the implementation of energy efficiency strategies. In particular, the food industry is heavily dependent on fossil fuels, and the food demand is expected to grow significantly in the coming years. Therefore, developing energy efficiency strategies for this particular industrial sector is crucial. This paper investigates the different opportunities for energy efficiency in the food industry. It first provides a brief overview of the various food industries and related energy consumption. Then, the different options for energy efficiency in the thermal and electric sector are discussed. New trends and opportunities, arising from industry 4.0 and demand response, are also presented.
Jean-Michel Clairand; Marco Briceno-Leon; Guillermo Escriva-Escriva; Antonio Marco Pantaleo. Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities. IEEE Access 2020, 8, 48015 -48029.
AMA StyleJean-Michel Clairand, Marco Briceno-Leon, Guillermo Escriva-Escriva, Antonio Marco Pantaleo. Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities. IEEE Access. 2020; 8 (99):48015-48029.
Chicago/Turabian StyleJean-Michel Clairand; Marco Briceno-Leon; Guillermo Escriva-Escriva; Antonio Marco Pantaleo. 2020. "Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities." IEEE Access 8, no. 99: 48015-48029.
Electricity consumption patterns reveal energy demand behaviors and enable strategY implementation to increase efficiency using monitoring systems. However, incorrect patterns can be obtained when the time-series components of electricity demand are not considered. Hence, this research proposes a new method for handling time-series components that significantly improves the ability to obtain patterns and detect anomalies in electrical consumption profiles. Patterns are found using the proposed method and two widespread methods for handling the time-series components, in order to compare the results. Through this study, the conditions that electricity demand data must meet for making the time-series analysis useful are established. Finally, one year of real electricity consumption is analyzed for two different cases to evaluate the effect of time-series treatment in the detection of anomalies. The proposed method differentiates between periods of high or low energy demand, identifying contextual anomalies. The results indicate that it is possible to reduce time and effort involved in data analysis, and improve the reliability of monitoring systems, without adding complex procedures.
Xavier Serrano-Guerrero; Guillermo Escrivá-Escrivá; Santiago Luna-Romero; And Jean-Michel Clairand. A Time-Series Treatment Method to Obtain Electrical Consumption Patterns for Anomalies Detection Improvement in Electrical Consumption Profiles. Energies 2020, 13, 1046 .
AMA StyleXavier Serrano-Guerrero, Guillermo Escrivá-Escrivá, Santiago Luna-Romero, And Jean-Michel Clairand. A Time-Series Treatment Method to Obtain Electrical Consumption Patterns for Anomalies Detection Improvement in Electrical Consumption Profiles. Energies. 2020; 13 (5):1046.
Chicago/Turabian StyleXavier Serrano-Guerrero; Guillermo Escrivá-Escrivá; Santiago Luna-Romero; And Jean-Michel Clairand. 2020. "A Time-Series Treatment Method to Obtain Electrical Consumption Patterns for Anomalies Detection Improvement in Electrical Consumption Profiles." Energies 13, no. 5: 1046.
In rural areas or in isolated communities in developing countries it is increasingly common to install micro-renewable sources, such as photovoltaic (PV) systems, by residential consumers without access to the utility distribution network. The reliability of the supply provided by these stand-alone generators is a key issue when designing the PV system. The proper system sizing for a minimum level of reliability avoids unacceptable continuity of supply (undersized system) and unnecessary costs (oversized system). This paper presents a method for the accurate sizing of stand-alone photovoltaic (SAPV) residential generation systems for a pre-established reliability level. The proposed method is based on the application of a sequential random Monte Carlo simulation to the system model. Uncertainties of solar radiation, energy demand, and component failures are simultaneously considered. The results of the case study facilitate the sizing of the main energy elements (solar panels and battery) depending on the required level of reliability, taking into account the uncertainties that affect this type of facility. The analysis carried out demonstrates that deterministic designs of SAPV systems based on average demand and radiation values or the average number of consecutive cloudy days can lead to inadequate levels of continuity of supply.
Eduardo Quiles; Carlos Roldán-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta. Accurate Sizing of Residential Stand-Alone Photovoltaic Systems Considering System Reliability. Sustainability 2020, 12, 1274 .
AMA StyleEduardo Quiles, Carlos Roldán-Blay, Guillermo Escrivá-Escrivá, Carlos Roldán-Porta. Accurate Sizing of Residential Stand-Alone Photovoltaic Systems Considering System Reliability. Sustainability. 2020; 12 (3):1274.
Chicago/Turabian StyleEduardo Quiles; Carlos Roldán-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta. 2020. "Accurate Sizing of Residential Stand-Alone Photovoltaic Systems Considering System Reliability." Sustainability 12, no. 3: 1274.
The development of microgrids is of great interest to facilitate the integration of distributed generation in electricity networks, improving the sustainability of energy production. Microgrids in DC (DC-MG) provide advantages for the use of some types of renewable generation and energy storage systems, such as batteries. In this article, a possible practical implementation of an isolated DC-MG for residential use with a cooperative operation of the different nodes is proposed. The main criterion is to achieve a very simple design with only primary control in a residential area. This application achieves a simple system, with low implementation costs, in which each user has autonomy but benefits from the support of the other users connected to the microgrid, which improves its reliability. The description of the elements necessary to create this cooperative system is one of the contributions of the work. Another important contribution is the analysis of the operation of the microgrid as a whole, where each node can be, arbitrarily, a consumer or an energy generator. The proposed structures could promote the use of small distributed generation and energy storage systems as the basis for a new paradigm of a more sustainable electricity grid of the future.
Carlos Roldán-Porta; Carlos Roldán-Blay; Guillermo Escrivá-Escrivá; Eduardo Quiles. Improving the Sustainability of Self-Consumption with Cooperative DC Microgrids. Sustainability 2019, 11, 5472 .
AMA StyleCarlos Roldán-Porta, Carlos Roldán-Blay, Guillermo Escrivá-Escrivá, Eduardo Quiles. Improving the Sustainability of Self-Consumption with Cooperative DC Microgrids. Sustainability. 2019; 11 (19):5472.
Chicago/Turabian StyleCarlos Roldán-Porta; Carlos Roldán-Blay; Guillermo Escrivá-Escrivá; Eduardo Quiles. 2019. "Improving the Sustainability of Self-Consumption with Cooperative DC Microgrids." Sustainability 11, no. 19: 5472.
The market for electric vehicles (EVs) has grown with each year, and EVs are considered to be a proper solution for the mitigation of urban pollution. So far, not much attention has been devoted to the use of EVs for public transportation, such as taxis and buses. However, a massive introduction of electric taxis (ETs) and electric buses (EBs) could generate issues in the grid. The challenges are different from those of private EVs, as their required load is much higher and the related time constraints must be considered with much more attention. These issues have begun to be studied within the last few years. This paper presents a review of the different approaches that have been proposed by various authors, to mitigate the impact of EBs and ETs on the future smart grid. Furthermore, some projects with regard to the integration of ETs and EBs around the world are presented. Some guidelines for future works are also proposed.
Jean-Michel Clairand; Paulo Guerra-Terán; Xavier Serrano-Guerrero; Mario González-Rodríguez; Guillermo Escrivá-Escrivá. Electric Vehicles for Public Transportation in Power Systems: A Review of Methodologies. Energies 2019, 12, 3114 .
AMA StyleJean-Michel Clairand, Paulo Guerra-Terán, Xavier Serrano-Guerrero, Mario González-Rodríguez, Guillermo Escrivá-Escrivá. Electric Vehicles for Public Transportation in Power Systems: A Review of Methodologies. Energies. 2019; 12 (16):3114.
Chicago/Turabian StyleJean-Michel Clairand; Paulo Guerra-Terán; Xavier Serrano-Guerrero; Mario González-Rodríguez; Guillermo Escrivá-Escrivá. 2019. "Electric Vehicles for Public Transportation in Power Systems: A Review of Methodologies." Energies 12, no. 16: 3114.
Energy supply is becoming an important issue and electricity system reliability is sometimes difficult to ensure. Energy efficiency in buildings in use is a key element in the search for solutions to current energy problems. Many buildings in use can improve their energy consumption performance by implementing simple energy efficiency measures (EEM) in their facilities. After carrying out such actions, savings may be continued with just minimal maintenance. An additional key phase in classical energy studies is to define EEM to be implemented by the intervention of an external energy expert, since resident staff may not have the time, sufficient knowledge, nor experience in EEM. The energy expert intervention is of short duration (several days), and the total cost of the action may be moderate. In this paper, authors present several real examples implemented in three buildings on the Universitat Politècnica de València (UPV) campus after an external energy expert review. Savings, certified using real measured consumption before and after the action, represent around 10% of the total annual energy consumption in the buildings, and the payback of the EEM is approximately a few months.
Guillermo Escrivá-Escrivá; Carlos Roldán-Blay; Carlos Roldán-Porta; Xavier Serrano-Guerrero; Escrivá- Escrivá; Roldán- Blay; Roldán- Porta; Serrano- Guerrero. Occasional Energy Reviews from an External Expert Help to Reduce Building Energy Consumption at a Reduced Cost. Energies 2019, 12, 2929 .
AMA StyleGuillermo Escrivá-Escrivá, Carlos Roldán-Blay, Carlos Roldán-Porta, Xavier Serrano-Guerrero, Escrivá- Escrivá, Roldán- Blay, Roldán- Porta, Serrano- Guerrero. Occasional Energy Reviews from an External Expert Help to Reduce Building Energy Consumption at a Reduced Cost. Energies. 2019; 12 (15):2929.
Chicago/Turabian StyleGuillermo Escrivá-Escrivá; Carlos Roldán-Blay; Carlos Roldán-Porta; Xavier Serrano-Guerrero; Escrivá- Escrivá; Roldán- Blay; Roldán- Porta; Serrano- Guerrero. 2019. "Occasional Energy Reviews from an External Expert Help to Reduce Building Energy Consumption at a Reduced Cost." Energies 12, no. 15: 2929.
Demand response has proven to be a distributed energy resource of great potential over the last decades for electrical systems operation. However, small or medium size facilities generally have a very limited ability to participate in demand response programs. When a facility includes several generation resources, energy storage systems, or even demand flexibility, the decision-making becomes considerably harder because of the amount of variables to be considered. This paper presents a method to facilitate end users’ decision-making in demand response participation. The method consists of an algorithm that uses demand and generation forecasts and costs of the available resources. Depending on the energy to be reduced in a program, the algorithm obtains the optimal schedule and facilitates decision making, helping end users to decide when and how to participate. With this method, end users’ capability to participate in these programs is clearly increased. In addition, the method is contrasted by simulations based on real programs developed at the Campus de Vera of the Universitat Politècnica de València. The simulations carried out show that the developed method allows end users to take advantage of the potential of their facilities to provide demand response services and obtain the maximum possible benefit.
Carlos Roldán-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta. Improving the benefits of demand response participation in facilities with distributed energy resources. Energy 2018, 169, 710 -718.
AMA StyleCarlos Roldán-Blay, Guillermo Escrivá-Escrivá, Carlos Roldán-Porta. Improving the benefits of demand response participation in facilities with distributed energy resources. Energy. 2018; 169 ():710-718.
Chicago/Turabian StyleCarlos Roldán-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta. 2018. "Improving the benefits of demand response participation in facilities with distributed energy resources." Energy 169, no. : 710-718.
Current energy policies around the world are encouraging integration of renewable electricity generation into the power system. However, these resources are so unpredictable and variable that the need of more flexible resources increases. Demand Response (DR) resources may be a realistic solution, but increasing the credibility among agents by means of the standardization of DR procedures is necessary. This paper proposes a methodology based on an energy analysis of industrial processes to quantify and validate the flexibility potential of industrial customers in order to contribute to create a certification procedure. This methodology can be helpful for industrial customers themselves, energy service companies (ESCO) and DR aggregators, among others. The methodology was validated in three different factories whose industrial segments have a high-energy intensity in Europe: a paper factory (Klingele, Germany), a meat factory and a refrigerated logistics centre (Campofrio, Spain).
Javier Rodríguez-García; Carlos Álvarez-Bel; José-Francisco Carbonell-Carretero; Guillermo Escrivá-Escrivá; Carmen Calpe-Esteve. Design and validation of a methodology for standardizing prequalification of industrial demand response resources. Electric Power Systems Research 2018, 164, 220 -229.
AMA StyleJavier Rodríguez-García, Carlos Álvarez-Bel, José-Francisco Carbonell-Carretero, Guillermo Escrivá-Escrivá, Carmen Calpe-Esteve. Design and validation of a methodology for standardizing prequalification of industrial demand response resources. Electric Power Systems Research. 2018; 164 ():220-229.
Chicago/Turabian StyleJavier Rodríguez-García; Carlos Álvarez-Bel; José-Francisco Carbonell-Carretero; Guillermo Escrivá-Escrivá; Carmen Calpe-Esteve. 2018. "Design and validation of a methodology for standardizing prequalification of industrial demand response resources." Electric Power Systems Research 164, no. : 220-229.
Xavier Serrano-Guerrero; Guillermo Escrivá-Escrivá; Carlos Roldan-Blay. Statistical methodology to assess changes in the electrical consumption profile of buildings. Energy and Buildings 2018, 164, 99 -108.
AMA StyleXavier Serrano-Guerrero, Guillermo Escrivá-Escrivá, Carlos Roldan-Blay. Statistical methodology to assess changes in the electrical consumption profile of buildings. Energy and Buildings. 2018; 164 ():99-108.
Chicago/Turabian StyleXavier Serrano-Guerrero; Guillermo Escrivá-Escrivá; Carlos Roldan-Blay. 2018. "Statistical methodology to assess changes in the electrical consumption profile of buildings." Energy and Buildings 164, no. : 99-108.
Forecasting of electricity demand is a fundamental requirement for the energy sector since from its results important decisions are taken. The areas involved are maintenance of electrical networks, demand growth, increased installed capacity, among others, whose lack of precision can take high economic costs. In this work, we propose a method based on backpropagation neural networks and election of key variables as inputs. The number of neurons in the hidden layer was optimized. To avoid the overtraining the best time range of data was defined. The results show that the method works particularly well for short-term forecasting (24 or 48 hours).
Xavier Serrano-Guerrero; Ricardo Prieto-Galarza; Esteban Huilcatanda; Juan Cabrera-Zeas; Guillermo Escriva-Escriva. Election of variables and short-term forecasting of electricity demand based on backpropagation artificial neural networks. 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) 2017, 1 .
AMA StyleXavier Serrano-Guerrero, Ricardo Prieto-Galarza, Esteban Huilcatanda, Juan Cabrera-Zeas, Guillermo Escriva-Escriva. Election of variables and short-term forecasting of electricity demand based on backpropagation artificial neural networks. 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). 2017; ():1.
Chicago/Turabian StyleXavier Serrano-Guerrero; Ricardo Prieto-Galarza; Esteban Huilcatanda; Juan Cabrera-Zeas; Guillermo Escriva-Escriva. 2017. "Election of variables and short-term forecasting of electricity demand based on backpropagation artificial neural networks." 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) , no. : 1.
In this article, a digital control systems for Lighting Energy Consumption Efficiency (LECE), based on a proportional-integral-derivative (PID) controller, is proposed. In this approach, the designed microcontroller system interacts with natural lighting and controls led light bulbs. In this sense, this system is able to automatically reduce, in a smart appropriate manner, the consumption of energy without affecting the comfort of people visualization. The proposed system was tested during three months and located in four physical spaces at Universidad Politécnica Salesiana (UPS) in Cuenca. In order to perform a quality analysis of the smart system, three items were selected to study: illumination, luminance and consumed electrical power. According to the results, the electronic system was able to save approximately 70% of lighting energy consumption.
F. Pesantez-Pesantez; A. Valdez-Salamea; X. Serrano-Guerreo; W. Orozco-Tupacyupanqui; G. Escrivá-Escrivá. A digital control system for Lighting Energy Consumption Efficiency (LECE). 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) 2017, 1 -6.
AMA StyleF. Pesantez-Pesantez, A. Valdez-Salamea, X. Serrano-Guerreo, W. Orozco-Tupacyupanqui, G. Escrivá-Escrivá. A digital control system for Lighting Energy Consumption Efficiency (LECE). 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). 2017; ():1-6.
Chicago/Turabian StyleF. Pesantez-Pesantez; A. Valdez-Salamea; X. Serrano-Guerreo; W. Orozco-Tupacyupanqui; G. Escrivá-Escrivá. 2017. "A digital control system for Lighting Energy Consumption Efficiency (LECE)." 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) , no. : 1-6.
Carlos Roldan-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta; Carlos Álvarez-Bel. An optimisation algorithm for distributed energy resources management in micro-scale energy hubs. Energy 2017, 132, 126 -135.
AMA StyleCarlos Roldan-Blay, Guillermo Escrivá-Escrivá, Carlos Roldán-Porta, Carlos Álvarez-Bel. An optimisation algorithm for distributed energy resources management in micro-scale energy hubs. Energy. 2017; 132 ():126-135.
Chicago/Turabian StyleCarlos Roldan-Blay; Guillermo Escrivá-Escrivá; Carlos Roldán-Porta; Carlos Álvarez-Bel. 2017. "An optimisation algorithm for distributed energy resources management in micro-scale energy hubs." Energy 132, no. : 126-135.
In this paper, an optimisation algorithm is used to simulate the management of distributed energy resources in an academic building. This optimisation algorithm, called DEROP, consists of an iterative procedure reach a supply schedule with the minimum energy cost. The inputs to the algorithm are the demand forecast, the availability of each resource, the level of storage in energy storage systems and prices and efficiencies of each resource. With these data, the algorithm proposes the optimal schedule to minimise costs of energy supply. The main advantages of this algorithm are that it is fast, easy to be implemented in real buildings and flexible. The algorithm is simulated with real data to optimise management of distributed energy resources and energy storage systems in an academic building. The management of these resources is optimised for a tariff with hourly discrimination and for a tariff with no time restrictions. One of the main conclusions drawn from these simulations are that significant savings are obtained with this algorithm. Also, DEROP allows taking advantage of tariffs with hourly discrimination, even in an academic building with low night-time consumption in which, a priori, these tariffs are not profitable.
C Roldán-Blay; C Roldán-Porta; E Peñalvo-López; G Escrivá-Escrivá. Optimal Energy Management of an Academic Building with Distributed Generation and Energy Storage Systems. IOP Conference Series: Earth and Environmental Science 2017, 78, 012018 .
AMA StyleC Roldán-Blay, C Roldán-Porta, E Peñalvo-López, G Escrivá-Escrivá. Optimal Energy Management of an Academic Building with Distributed Generation and Energy Storage Systems. IOP Conference Series: Earth and Environmental Science. 2017; 78 (1):012018.
Chicago/Turabian StyleC Roldán-Blay; C Roldán-Porta; E Peñalvo-López; G Escrivá-Escrivá. 2017. "Optimal Energy Management of an Academic Building with Distributed Generation and Energy Storage Systems." IOP Conference Series: Earth and Environmental Science 78, no. 1: 012018.
The domestic hot water systems (DHW) used in Ecuador work with electrical energy and liquefied petroleum gas (LPG). Nowadays, Ecuador is in a process of changing its energy matrix, which involves the elimination of LPG in the residential sector. In this context, gas cooker will be replaced by induction cookers and also the gas water heaters by electrical heaters. This will cause a significant problem: high peaks in the power demand curve in the country. This work shows a quantitative assessment of different hybrid solar systems used for DHW to mitigate the electric energy consumption and LPG, showing the economic and environmental benefits. This paper presents a simulation of a solar thermal system and a photovoltaic system, each one of them supported by an auxiliary heating system. Demand for hot water is considered for a typical family of 4 members in Ecuador. TRNSYS software was used to evaluate the behavior of the systems in a whole year, whereas an analytical method was used to contrast the results. The results suggest that the solar thermal systems are more profitable due to their greater efficiency with respect to photovoltaic systems. On the other hand, the costs of solar collectors and photovoltaic panels influence in a great way in the economic survey. In regard to the auxiliary systems, economic analysis shows that a system based on LPG is more profitable than an electrical auxiliary system because it presents a saving of 17.04 % of the total expenditure required. The study also shows the economic and environmental benefits for the user and the Ecuadorian government.
Xavier Serrano-Guerrero; Mario Narvaez; Christian Uriguen; Guillermo Escrivá-Escrivá. Quantitative assessment of hybrid systems of heating domestic water based on solar energy in andean zones of Ecuador. 2016 51st International Universities Power Engineering Conference (UPEC) 2016, 1 -6.
AMA StyleXavier Serrano-Guerrero, Mario Narvaez, Christian Uriguen, Guillermo Escrivá-Escrivá. Quantitative assessment of hybrid systems of heating domestic water based on solar energy in andean zones of Ecuador. 2016 51st International Universities Power Engineering Conference (UPEC). 2016; ():1-6.
Chicago/Turabian StyleXavier Serrano-Guerrero; Mario Narvaez; Christian Uriguen; Guillermo Escrivá-Escrivá. 2016. "Quantitative assessment of hybrid systems of heating domestic water based on solar energy in andean zones of Ecuador." 2016 51st International Universities Power Engineering Conference (UPEC) , no. : 1-6.
Guillermo Escrivá-Escrivá; Carlos Roldán Porta; E.C.W. De Jong. Nuisance tripping of residual current circuit breakers in circuits supplying electronic loads. Electric Power Systems Research 2016, 131, 139 -146.
AMA StyleGuillermo Escrivá-Escrivá, Carlos Roldán Porta, E.C.W. De Jong. Nuisance tripping of residual current circuit breakers in circuits supplying electronic loads. Electric Power Systems Research. 2016; 131 ():139-146.
Chicago/Turabian StyleGuillermo Escrivá-Escrivá; Carlos Roldán Porta; E.C.W. De Jong. 2016. "Nuisance tripping of residual current circuit breakers in circuits supplying electronic loads." Electric Power Systems Research 131, no. : 139-146.
Renewable energies are a central element in the search for energy sustainability, so they are becoming a substantial component of the energy scenario of every country, both as systems connected to the grid or in stand-alone applications. Feasibility of these renewable energy systems could be necessary not only in their application in isolated areas, but also in systems connected to the grid, in this last case when their contribution reaches a substantial fraction of the total electricity demand. To overcome this reliability problem, hybrid renewable systems could become essential and activities to optimize their design should be addressed, both in the simulation and in the experimental areas. In this paper, a laboratory to simulate and verify the reliability of hybrid renewable systems is presented and its application to the feasibility analysis of multicomponent systems including photovoltaic panels, wind generator and biomass gasification plant, plus energy storage in a battery bank, are described.
A. Pérez-Navarro; D. Alfonso; H.E. Ariza; J. Cárcel; A. Correcher; G. Escrivá-Escrivá; E. Hurtado; F. Ibáñez; E. Peñalvo; R. Roig; C. Roldán; C. Sánchez; I. Segura; C. Vargas. Experimental verification of hybrid renewable systems as feasible energy sources. Renewable Energy 2015, 86, 384 -391.
AMA StyleA. Pérez-Navarro, D. Alfonso, H.E. Ariza, J. Cárcel, A. Correcher, G. Escrivá-Escrivá, E. Hurtado, F. Ibáñez, E. Peñalvo, R. Roig, C. Roldán, C. Sánchez, I. Segura, C. Vargas. Experimental verification of hybrid renewable systems as feasible energy sources. Renewable Energy. 2015; 86 ():384-391.
Chicago/Turabian StyleA. Pérez-Navarro; D. Alfonso; H.E. Ariza; J. Cárcel; A. Correcher; G. Escrivá-Escrivá; E. Hurtado; F. Ibáñez; E. Peñalvo; R. Roig; C. Roldán; C. Sánchez; I. Segura; C. Vargas. 2015. "Experimental verification of hybrid renewable systems as feasible energy sources." Renewable Energy 86, no. : 384-391.