scholarly journals A Review of Key Performance Indicators for Building Flexibility Quantification to Support the Clean Energy Transition

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5676
Author(s):  
Girolama Airò Farulla ◽  
Giovanni Tumminia ◽  
Francesco Sergi ◽  
Davide Aloisio ◽  
Maurizio Cellura ◽  
...  
Keyword(s):  
Performance Indicators ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
Clean Energy ◽  
Key Performance Indicators ◽  
Electric Power System ◽  
Power Grids ◽  
Current Status ◽  
Future Perspective ◽  
The Stability

The transition to a sustainable society and a carbon-neutral economy by 2050 requires extensive deployment of renewable energy sources that, due to the aleatority and non-programmability of most of them, may seriously affect the stability of existing power grids. In this context, buildings are increasingly being seen as a potential source of energy flexibility for the power grid. In literature, key performance indicators, allowing different aspects of the load management, are used to investigate buildings’ energy flexibility. The paper reviews existing indicators developed in the context of theoretical, experimental and numerical studies on flexible buildings, outlining the current status and the potential future perspective. Moreover, the paper briefly reviews the range of grid services that flexible buildings can provide to support the reliability of the electric power system which is potentially challenged by the increasing interconnection of distributed variable renewable generation.

scholarly journals Key Performance Indicators for an Energy Community Based on Sustainable Technologies

2021 ◽  
Vol 13 (16) ◽  
pp. 8789
Author(s):  
Giovanni Bianco ◽  
Barbara Bonvini ◽  
Stefano Bracco ◽  
Federico Delfino ◽  
Paola Laiolo ◽  
...  
Keyword(s):  
Performance Indicators ◽  
Urban Areas ◽  
High Performance ◽  
Power Plants ◽  
New Technologies ◽  
Storage Systems ◽  
Clean Energy ◽  
Key Performance Indicators ◽  
Energy Performance ◽  
Green Energy

As reported in the “Clean energy for all Europeans package” set by the EU, a sustainable transition from fossil fuels towards cleaner energy is necessary to improve the quality of life of citizens and the livability in cities. The exploitation of renewable sources, the improvement of energy performance in buildings and the need for cutting-edge national energy and climate plans represent important and urgent topics to be faced in order to implement the sustainability concept in urban areas. In addition, the spread of polygeneration microgrids and the recent development of energy communities enable a massive installation of renewable power plants, high-performance small-size cogeneration units, and electrical storage systems; moreover, properly designed local energy production systems make it possible to optimize the exploitation of green energy sources and reduce both energy supply costs and emissions. In the present paper, a set of key performance indicators is introduced in order to evaluate and compare different energy communities both from a technical and environmental point of view. The proposed methodology was used in order to assess and compare two sites characterized by the presence of sustainable energy infrastructures: the Savona Campus of the University of Genoa in Italy, where a polygeneration microgrid has been in operation since 2014 and new technologies will be installed in the near future, and the SPEED2030 District, an urban area near the Campus where renewable energy power plants (solar and wind), cogeneration units fed by hydrogen and storage systems are planned to be installed.

Territorial Governance of EU Cross-Border Renewable Energy Cooperation: A Soluble or Turbulent Model in the Current Framework?

2021 ◽  
Vol 2 (1) ◽  
pp. 79-97
Author(s):  
Melis Aras
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Planning Process ◽  
Renewable Energy Sources ◽  
Local Level ◽  
Energy Transition ◽  
Clean Energy ◽  
Legal Framework ◽  
Development Planning ◽  
Cross Border

The energy transition in Europe requires not only the implementation of technological innovations to reduce carbon emissions but also the decentralised extension of these innovations throughout the continent, as demonstrated by the ‘Clean Energy for All Europeans’ package. However, decentralised energy generation, and specifically electricity generation, as it gives rise to new players and interactions, also requires a review of the energy planning process. In this sense, governance becomes the key concept for understanding the implementation of the energy transition in a territory. This is particularly visible in a cross-border setting, especially considering cross-border cooperation in the development of renewable energy sources (RES) provides the necessary elements to determine the criteria of local regulation between the different levels of governance. In light of the current legal framework in France, this paper presents the institutional framework of the multi-level governance of the RES development planning process. It concludes that it is quite conceivable for the rationales of governance at the local level (decentralisation) and the large-scale operation of a large interconnected network (Europeanisation) to coexist.

scholarly journals A Methodology for Determination and Definition of Key Performance Indicators for Smart Grids Development in Island Energy Systems

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 242 ◽  
Author(s):  
Dionysios Pramangioulis ◽  
Konstantinos Atsonios ◽  
Nikos Nikolopoulos ◽  
Dimitrios Rakopoulos ◽  
Panagiotis Grammelis ◽  
...  
Keyword(s):  
Smart Grid ◽  
Performance Indicators ◽  
Smart Grids ◽  
State Of The Art ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Key Performance Indicators ◽  
Energy System ◽  
The European Union ◽  
Evaluation Approach

There is a growing interest over the last decades in the field of autonomous island grids that is driven mainly by climate reasons. The common objective among the members of the European Union (EU) is the increase of Renewable Energy Sources (RES) penetration in the energy mixture, as well as turning the grid into a smart grid. Consequently, more and more state-of-the-art solutions are being proposed for the electricity generation and the optimization of the energy system management, taking advantage of innovations in all energy related sectors. The evaluation of all available solutions requires quantitative assessment, through the adoption of representative Key Performance Indicators (KPIs) for the projects that are related to smart grid development in isolated energy systems, providing the relevant stakeholders with a useful comparison among the proposed solutions. The evaluation approach that is described in this paper emphasizes the role of the various stakeholder groups who face the proposed solutions by different points of view. Apart from the domains of interest that are also observed in previous approaches, the proposed list also contains a set of legal KPIs, since the regulatory framework can either represent a serious barrier or grant a strong incentive for the implementation of state-of-the-art energy technology and grid management solutions in different countries.

scholarly journals Do They Still Matter? – Impact of Fossil Fuels on Electricity Prices in the Light of Increased Renewable Generation

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Johannes Lips
Keyword(s):  
Electricity Market ◽  
Fossil Fuels ◽  
Structural Breaks ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
Electricity Production ◽  
Test Statistic ◽  
Electricity Prices ◽  
Bootstrap Approach ◽  
The Stability

AbstractDuring the last years, the German energy sector and especially its electricity market was affected by a major energy transition, the so called „Energiewende“. This transition led to an increase of electricity production from renewable sources and thereby affected the whole electricity market. Therefore, it provides lessons for countries, which are only beginning a similar transition away from fossil fuels to renewable energy sources. The aim of this analysis is to assess if there still exists a relationship between fossil fuel and electricity prices. Due to possible structural breaks in the time series a minimum Lagrange Multiplier (LM) stationarity test is applied, which endogenously determines possible structural breaks. Subsequently a bootstrap approach is used to estimate confidence intervals (C.I.s) for the test statistic and the possible break dates. Furthermore, the stability of the cointegration vector is assessed with the test by Hansen and Johansen (

scholarly journals EUROPEAN GREEN DEAL AND NEW OPPORTUNITIES FOR THE DEVELOPMENT OF RENEWABLE ENERGY

2021 ◽  
Vol 43 (1) ◽  
pp. 75-81
Author(s):  
T.A. Zheliezna
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Sustainable Use ◽  
Energy Transition ◽  
Clean Energy ◽  
Green Energy ◽  
Low Carbon ◽  
Climate Neutrality ◽  
Goals And Objectives

The aim of the work is to develop recommendations for Ukraine on setting long-term integrated climate and energy goals and identifying ways to achieve them. The preconditions, main goals and objectives of the European Green Deal, which was presented by the European Commission in December 2019, are analyzed. The European Green Deal is a comprehensive strategy for the transition to a sustainable economy, clean energy and climate neutrality, i.e., zero greenhouse gas emissions, in Europe by 2050. The adoption of this Deal was preceded by several stages of a coherent EU policy in the relevant sectors. Possibilities for renewable energy development within the framework of the European Green Deal are considered. It is determined that preference is given to the production of green electricity, mobilization of the potential of offshore renewable energy, production of biogas and biofuels from biomass of agricultural origin, sustainable use of low-carbon and renewable fuels, including biomass and hydrogen, in hard-to-electricity sectors. In Ukraine, the document that is closest by its contents to the European Green Deal is the draft Concept of green energy transition until 2050 presented in January 2020. The draft Concept states the goal of achieving 70% of renewable energy sources in electricity generation by 2050 and the climate-neutral economy of Ukraine by 2070. It is recommended that this document should be finalized and adopted formally as soon as possible.

scholarly journals From a Comprehensive Pool to a Project-Specific List of Key Performance Indicators for Monitoring the Positive Energy Transition of Smart Cities—An Experience-Based Approach

Smart Cities ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 705-735
Author(s):  
Komninos Angelakoglou ◽  
Konstantinos Kourtzanidis ◽  
Paraskevi Giourka ◽  
Vasilis Apostolopoulos ◽  
Nikos Nikolopoulos ◽  
...  
Keyword(s):  
Performance Indicators ◽  
Smart City ◽  
Smart Cities ◽  
Selection Procedure ◽  
Evaluation Process ◽  
Energy Transition ◽  
Key Performance Indicators ◽  
Lessons Learned ◽  
Positive Energy ◽  
Performance Framework

As cities grow rapidly and energy needs increase, shaping an effective energy transition is a top priority towards urban sustainability and smart development. This study attempts to answer three key research questions that can help city authorities, planners and interested agents simplify and increase the transparency of Key Performance Indicators (KPIs) selection for smart city and communities (SCC) projects focusing on energy transition and creation of Positive Energy Districts (PEDs): Question 1: “What resources are available for extracting such KPIs?”; Question 2: “Which of those KPIs are the most suitable for assessing the energy transition of smart city projects and PED-related developments?” and Question 3: “How can a project-specific shortlist of KPIs be developed?”. Answering these questions can also serve as a major first step towards a “universal” KPI selection procedure. In line with this purpose, an experiential approach is presented, capitalizing on knowledge and lessons learned from an ongoing smart city project in Europe (POCITYF) that focuses on PED deployment. Under this framework, a) a review of smart city KPI frameworks has been conducted, resulting in a pool of 258 indicators that can potentially be adopted by smart city projects; b) eight key dimensions of evaluations were extracted, setting a holistic performance framework relevant to SCCs; c) a detailed evaluation process including pre-determined criteria and city-needs feedback was applied to shortlist the KPI pool, leading to a ready-to-be-used, project-specific list of 63 KPIs and d) KPIs were sorted and analyzed in different granularity levels to further facilitate the monitoring procedure. The experiential procedure presented in this study can be easily adapted to the needs of every smart city project, serving as a recommendation guide.

scholarly journals Synergies between e-Mobility and Photovoltaic Potentials—A Case Study on an Urban Medium Voltage Grid

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3795 ◽  
Author(s):  
Julia Vopava ◽  
Ulrich Bergmann ◽  
Thomas Kienberger
Keyword(s):  
Renewable Energy ◽  
Performance Indicators ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Key Performance Indicators ◽  
Load Flow ◽  
Energy Sources ◽  
Grid Model ◽  
Synergy Effects

To reduce CO2 emissions, it is necessary to cover the increasing energy demand of e-mobility with renewable energy sources. Therefore, the influence of increasing e-mobility and synergy effects between e-mobility and renewable energy sources need to be investigated. The case study presented here shows results from the analysis of grid-side and energetic synergy effects between e-mobility charged only at work and photovoltaic (PV) potentials. The basis of the grid study is a simplified cell-based grid model. Following the determination of synthetic charging profiles for e-mobility, PV potential profiles, load and production profiles, we perform load flow calculations for different scenarios and a simulation period of one year using the grid model. After the grid study, the energy analyses are carried out using four key performance indicators. The grid study shows that line overloads caused by PV production are only reduced and not avoided by increasing e-mobility and vice versa. The increase in the power peak of e-mobility, by shifting the charging processes into the peak of PV potentials, leads to a reduction of the production surplus in summer, while in winter the line utilisation increases. By modelling PV potentials on real irradiation and temperature data, the investigation of key performance indicators can identify not only seasonal fluctuations but also daily fluctuations.

scholarly journals Key performance indicators of high-tech enterprises

2018 ◽  
Vol 44 ◽  
pp. 00077 ◽  
Author(s):  
Tatyana Verevka
Keyword(s):  
Strategic Management ◽  
Performance Indicators ◽  
Key Performance Indicators ◽  
High Tech ◽  
Practical Implementation ◽  
Innovative Development ◽  
The World ◽  
Basic Performance ◽  
The Stability ◽  
Intellectual Potential

In the conditions of the transition to innovative development and digital economy, the unconditional priority is shifted to restoration and transformation of high-tech enterprises. The stability of their strategic developing greatly depends on the efficiency of their business activity and the system of the enterprise strategic management. This article defines the basic performance indicators of high-tech enterprises, the particular features of the system to evaluate the efficiency of strategic management of a high-tech enterprise: innovative, scientific-technological and intellectual potential. On the basis of the analysis of the methods widely used all over the world, we developed a system key performance indicators to evaluate the efficiency of high-tech enterprises, with consideration of particular features of operation and development of high-tech enterprises, to enable evaluating the efficiency of their business activities and management through analyzing the inter-related financial and non-financial performance indicators. The practical implementation of this system will make it possible for high-tech enterprises to form a data base for making strategic solutions to ensure competitive advantage of these enterprises and, as a consequence, facilitate their steady development.

scholarly journals Analysis of the dynamic effect of the electrical interconnection on the stability of the rotor angle for synchronous generators in the electric power system of Syria

2021 ◽  
Vol 23 (4) ◽  
pp. 120-133
Author(s):  
A. Alzakkar ◽  
N. P. Mestnikov ◽  
F. Alhajj Hassan ◽  
I. M. Valeev
Keyword(s):  
Power System ◽  
Electric Power ◽  
Angular Position ◽  
Dynamic Effect ◽  
Electric Power System ◽  
Power Grids ◽  
Synchronous Generators ◽  
Electrical Systems ◽  
Dynamic Representation ◽  
The Stability

This article focuses on the study and analysis of the importance of interconnections between electricity systems, which increases with greater probability due to the dependence of all countries and States on electricity and the ease of its transfer between countries in order to supplement their economic and technical benefits. THE PURPOSE. This study analyzes the dynamic impact of interconnection on circuit stability for synchronous generators in Syrian power grids. In addition, the authors of the article analyzed the dynamic effect of interaction on the stability of the angle of rotation of the rotor of synchronous generators operated in the Syrian power system through the use of dynamic modeling of the country's power system. METHODS. In the course of the study, the authors used a technique based on the dynamic representation of the power system and the construction of its nonlinear equations, followed by the use of the PSS ® E program. 230-400 kV.RESULTS. The authors of the article obtained a solution and determination of the system parameters and the separation time of the boundaries of three-phase short circuits in a 400 kV network in addition to determining the angular position of the generator circuits, and thus, its stability was checked, regardless of whether it works independently in the electric power system of Syria or is part of a network. CONCLUSION. In the course of the study, the authors obtained the following conclusions, such as: an increase in CFCT was found for generating units in the power system of Syria due to connection activation, an increase in transmitted power, which leads to an increase in the stabilization zone after a failure and before the start of connecting electrical systems to the country's power system, as well as it is necessary to conduct in-depth dynamic studies of the entire system in order to represent the effect of the connection on the parameters of the system, taking into account the increase in power.

Sign in / Sign up

Export Citation Format

Share Document