scholarly journals Positioning Positive Energy Districts in European Cities

Buildings ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 19
Author(s):  
Oscar Lindholm ◽  
Hassam ur Rehman ◽  
Francesco Reda
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Planning Process ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Generation ◽  
Positive Energy ◽  
The European Union ◽  
Different Types ◽  
Energy Environment

There are many concepts for buildings with integrated renewable energy systems that have received increased attention during the last few years. However, these concepts only strive to streamline building-level renewable energy solutions. In order to improve the flexibility of decentralized energy generation, individual buildings and energy systems should be able to interact with each other. The positive energy district (PED) concept highlights the importance of active interaction between energy generation systems, energy consumers and energy storage within a district. This paper strives to inform the public, decision makers and fellow researchers about the aspects that should be accounted for when planning and implementing different types of PEDs in different regions throughout the European Union. The renewable energy environment varies between different EU regions, in terms of the available renewable energy sources, energy storage potential, population, energy consumption behaviour, costs and regulations, which affect the design and operation of PEDs, and hence, no PED is like the other. This paper provides clear definitions for different types of PEDs, a survey of the renewable energy market circumstances in the EU and a detailed analysis of factors that play an essential role in the PED planning process.

scholarly journals Advances in Underground Energy Storage for Renewable Energy Sources

2021 ◽  
Vol 11 (11) ◽  
pp. 5142
Author(s):  
Javier Menéndez ◽  
Jorge Loredo
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Storage ◽  
Natural Gas ◽  
Greenhouse Gas ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The European Union ◽  
Coal Fuel

The use of fossil fuels (coal, fuel, and natural gas) to generate electricity has been reduced in the European Union during the last few years, involving a significant decrease in greenhouse gas emissions [...]

Flywheel energy storage systems and their applications in power engineering

2021 ◽  
Vol 6 ◽  
pp. 26-34
Author(s):  
Vladimir Poltavets ◽  
Irina Kolchanova
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Storage Systems ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Electric Energy ◽  
Energy Generation ◽  
Flywheel Energy Storage ◽  
Energy Storage Systems ◽  
Continuous Growth

The continuous growth of renewable energy sources has drastically changed the paradigm of electric energy generation and distribution. Flywheel energy storage systems are a clean and efficient method to level supply and demand in energy grids, including those incorporating renewable energy generation. Environmental safety, resilience, high power capacity and quality make flywheel energy storage very promising. This paper contains a review of flywheel energy storage systems, already being in operation, and applications of flywheel energy storage in general.

scholarly journals ARTIFICIAL INTELLIGENCEINTERVENTION TO URBAN BUILDING RENEWABLE ENERGY MODELING INTERVENTION FOR ROBUST FLEXIBLE COMMUNITIES

2021 ◽  
Vol 9 (03) ◽  
pp. 314-321
Author(s):  
Sammar Z. Allam
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Power Plants ◽  
Energy Use ◽  
Model Simulation ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Building Blocks ◽  
Positive Energy ◽  
Use Pattern

This research coveys a comparative analysis between Urban Building energy model (UBEM) generated by scholar, researchers, and professional in academia and industry while highlighting the reliable main components to manifest a successful and reliable UBEM technologies. Nevertheless, it consolidates distributed generation on building blocks rather than a whole district relying on renewable energy sources. It guides engineers through energy system model simulation on Openmodelica platform to feed green sustained communities. Moreover, energy use-pattern is mapped and analyzed by internet of things (IOT) technologies to fine-tune energy uses and refine use-pattern. Demonstrating artificial Intelligence (AI) algorithmto predict energy consumption can reflect on the amount of energy required for storage to cover energy needs. AI shapes a robust positive energy district (PED) through storinggenerated renewable solar or bio-energy to cover predicted energy use-pattern.Distributed -power-plant stations capacity to cover clusters using AI in predicting energy consumption consolidates on-site energy generation recommended by multiple International rating systems. AI-based Energy management plan guide engineers and planners to design distributed-power-plants of energy generation capacity lies between the actual energy need and a predicted scenario.

scholarly journals The Potential of Vehicle-to-Grid to Support the Energy Transition: A Case Study on Switzerland

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4812
Author(s):  
Loris Di Natale ◽  
Luca Funk ◽  
Martin Rüdisüli ◽  
Bratislav Svetozarevic ◽  
Giacomo Pareschi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Transition ◽  
Energy Sources ◽  
Large Share ◽  
Vehicle To Grid ◽  
Production And Consumption ◽  
The Impact

Energy systems are undergoing a profound transition worldwide, substituting nuclear and thermal power with intermittent renewable energy sources (RES), creating discrepancies between the production and consumption of electricity and increasing their dependence on greenhouse gas (GHG) intensive imports from neighboring energy systems. In this study, we analyze the concurrent electrification of the mobility sector and investigate the impact of electric vehicles (EVs) on energy systems with a large share of renewable energy sources. In particular, we build an optimization framework to assess how Evs could compete and interplay with other energy storage technologies to minimize GHG-intensive electricity imports, leveraging the installed Swiss reservoir and pumped hydropower plants (PHS) as examples. Controlling bidirectional EVs or reservoirs shows potential to decrease imported emissions by 33–40%, and 60% can be reached if they are controlled simultaneously and with the support of PHS facilities when solar PV panels produce a large share of electricity. However, even if vehicle-to-grid (V2G) can support the energy transition, we find that its benefits will reach their full potential well before EVs penetrate the mobility sector to a large extent and that EVs only contribute marginally to long-term energy storage. Hence, even with a widespread adoption of EVs, we cannot expect V2G to single-handedly solve the growing mismatch problem between the production and consumption of electricity.

scholarly journals Life Cycle Assessment (LCA) of Environmental and Energy Systems

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5892
Author(s):  
Luca Ciacci ◽  
Fabrizio Passarini
Keyword(s):  
Life Cycle Assessment ◽  
Renewable Energy ◽  
Life Cycle ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Generation ◽  
Energy Sources ◽  
Green Technologies ◽  
And Storage

The transition towards renewable energy sources and “green” technologies for energy generation and storage is expected to mitigate the climate emergency in the coming years [...]

scholarly journals A Comprehensive Review on Available/Existing Renewable Energy Systems in Malaysia and Comparison of Their Capability of Electricity Generation in Malaysia

2022 ◽  
Author(s):  
Hadi Nabipour Afrouzi ◽  
Yuhani Pamodha Wimalaratna ◽  
Jubaer Ahmed ◽  
Kamyar Mehranzamir ◽  
San Chuin Liew ◽  
...  
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Systems ◽  
Energy Generation ◽  
Tidal Energy ◽  
Renewable Energy Systems ◽  
The Moment

Malaysia is one of the fastest emerging and developing countries in the world. To drive the economical workhorse, large amounts of power is required. The power demand has risen to 156,003 GWh per year in the year 2016, almost 30,000 GWh more than 5 years prior. Fossil fuels such as natural gas, coal, oil, and diesel have been the driving force powering Malaysia’s grids. However, these resources will not last forever, and they do harm to our environment. To counter this, renewable energy (RE) projects have been constructed all around Malaysia. This paper discusses on available and existing renewable energy systems (single/hybrid) in Malaysia and provides a comparison of their electricity generation capabilities. The renewable energy sources that are covered in this paper include Solar, Hydropower, Biomass, Tidal and Geothermal. At the moment, hydropower is the largest renewable energy producer, contributing to almost 15% of the country’s total energy generation. A lot of resources have been channeled towards the initiative of hydropower and it has definitely borne much fruit. This is followed by Solar Energy. Even though it is not as successful as hydropower, there is still a lot of avenues for it to grow in a tropical country like this. Malaysia is still relatively new in terms of power generation using biomass sources. There has been a gradual increase in the power generation using biofuels through the years and its future does look bright. Energy generation from wind, tidal, and geothermal sources has been rather challenging. Because of Malaysia’s geographical location, it experiences slow winds on average throughout the year. This has led to insufficient output for its financial input. Besides that, Malaysia also has relatively low tide, if compared to other Asian countries such as Indonesia and the Philippines. This contributed to the failure of tidal energy in Malaysia, but there have been signs of locations that can be suitable for this energy generation. Besides that, the country’s first geothermal power plant project failed due to a lack of preparation and discipline during the project’s execution. There is a high initial cost for geothermal projects, and the chances of failure are high if the necessary precautions are not followed. This could be one of the reasons why this branch of renewable energy has not been explored deeply.

scholarly journals Classification and Analysis of Optimization Techniques for Integrated Energy Systems Utilizing Renewable Energy Sources: A Review for CHP and CCHP Systems

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 339 ◽  
Author(s):  
Mohammad Ali Bagherian ◽  
Kamyar Mehranzamir ◽  
Amin Beiranvand Pour ◽  
Shahabaldin Rezania ◽  
Elham Taghavi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Evolutionary Computing ◽  
Energy Generation ◽  
Optimization Methods ◽  
Optimization Techniques ◽  
Mixed Integer ◽  
Energy Sources ◽  
Integrated Energy Systems

Energy generation and its utilization is bound to increase in the following years resulting in accelerating depletion of fossil fuels, and consequently, undeniable damages to our environment. Over the past decade, despite significant efforts in renewable energy realization and developments for electricity generation, carbon dioxide emissions have been increasing rapidly. This is due to the fact that there is a need to go beyond the power sector and target energy generation in an integrated manner. In this regard, energy systems integration is a concept that looks into how different energy systems, or forms, can connect together in order to provide value for consumers and producers. Cogeneration and trigeneration are the two most well established technologies that are capable of producing two or three different forms of energy simultaneously within a single system. Integrated energy systems make for a very strong proposition since it results in energy saving, fuel diversification, and supply of cleaner energy. Optimization of such systems can be carried out using several techniques with regards to different objective functions. In this study, a variety of optimization methods that provides the possibility of performance improvements, with or without presence of constraints, are demonstrated, pinpointing the characteristics of each method along with detailed statistical reports. In this context, optimization techniques are classified into two primary groups including unconstrained optimization and constrained optimization techniques. Further, the potential applications of evolutionary computing in optimization of Integrated Energy Systems (IESs), particularly Combined Heat and Power (CHP) and Combined Cooling, Heating, and Power (CCHP), utilizing renewable energy sources are grasped and reviewed thoroughly. It was illustrated that the employment of classical optimization methods is fading out, replacing with evolutionary computing techniques. Amongst modern heuristic algorithms, each method has contributed more to a certain application; while the Genetic Algorithm (GA) was favored for thermoeconomic optimization, Particle Swarm Optimization (PSO) was mostly applied for economic improvements. Given the mathematical nature and constraint satisfaction property of Mixed-Integer Linear Programming (MILP), this method is gaining prominence for scheduling applications in energy systems.

scholarly journals Evaluation of Implementation of Biomass and Solar Resources by Energy Systems in the Coal-Mining Areas of Spain

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 232
Author(s):  
Beatriz M. Paredes-Sánchez ◽  
José P. Paredes-Sánchez ◽  
Paulino José García-Nieto
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Coal Mining ◽  
Thermal Energy ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
The European Union ◽  
Modular Systems ◽  
Mining Areas

Energy demand is steadily growing as society becomes more industrialised. Renewable energy sources (RES) have long been used for various applications by thermal energy systems in the European Union (EU). Biomass and solar energy represent important RES in the development of energy transition in some regions such as coal-mining areas of Europe. Bioenergy is a key renewable energy storage mechanism for solar energy which, when combined, can tackle many of the barriers to the use of solar energy. Against this background, this study evaluates the potential implementation of both biomass and solar energy for energy production in coal-mining areas in Spain as a direct alternative to coal. The shown methodology relies on a comprehensive analysis of existing resources and their conversion to thermal energy from a multi-parametric point of view. The obtained results show that the solar–biomass combination can be used for thermal energy systems as a challenging option. The theoretical total hybrid-modular systems if implemented in the study area are equivalent to 1165 MWth and supply thermal energy for 170,000 single-family houses.

scholarly journals EUROPEAN AND UKRAINIAN IMPLEMENTATION EXPERIENCE ENERGY TECHNOLOGIES

2019 ◽  
pp. 108-113
Author(s):  
A. Yevdokymova ◽  
S. Kolosok ◽  
N. Petrenko
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Generation ◽  
Energy Sources ◽  
Energy Networks ◽  
Energy Technologies ◽  
Market Requirements ◽  
Smart Technologies

The paper considers the use of renewable energy sources, the economic efficiency of their full-scale implementation, the policies of European countries on the development of energy systems and domestic energy networks. Existing energy networks in most cases do not meet modern market requirements. First, it concerns energy supply based on the renewable energy sources as most of the electricity is supplied to the electric networks in a decentralized way and only then to the consumers. Therefore, the key tool for successful energy redistribution should be the expansion of powerful regional transmission networks and local distribution networks. At the same time, consumption and conventional energy generation should become more flexible to meet market requirements. The use of “smart technologies”, especially digitalization with the help of smart energy meters, should be the driving tool to create new economic opportunities and simplify the coordination of energy generation and consumption. The use of “smart technologies” for renewable energy should be the basis for the energy systems development in Ukraine. International practices indicate the effectiveness of these technologies. The main advantage of their implementation is the security of energy supply to consumers, which significantly reduces carbon dioxide emissions as well as technological energy losses in the electric grid. One more advantage is the optimization of existing energy systems and their intelligent automation that allows the efficient use of renewable energy sources, reduction of the transmission losses through networks, the increase of the stability level of electricity supplies, the reduction of the negative impact of energy systems on the environment and meeting consumers’ needs for reliable energy supply. Keywords: energy technologies, power grids, energy technologies, smart technologies, smart grids.

scholarly journals The Impact of e-Mobility in Positive Energy Districts

2021 ◽  
Vol 11 (1) ◽  
pp. 24
Author(s):  
Tony Castillo-Calzadilla ◽  
Ainhoa Alonso-Vicario ◽  
Cruz E. Borges ◽  
Cristina Martin
Keyword(s):  
Renewable Energy ◽  
Urban Areas ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy Generation ◽  
Energy Storage System ◽  
Positive Energy ◽  
Renewable Energy Generation ◽  
The Impact

This article presents preliminary results that assess the effect of electromobility in an archetype Positive Energy District (PED). We present a PED modelling approach that represents renewable energy generation, an energy storage system, the consumption of residential and non-residential buildings, smart lighting services, and the inclusion of electric mobility. We consider renewable energy generation from photovoltaic panels and annual irradiation patterns of the North of Spain to accomplish the electric demands of a synthetic PED. In this general case study, we build up four scenarios where we evaluate at which degree the consumption of EVs would be covered by local Renewable Energy Sources (RES). The simulation results show that the urban areas with great efficiency (in terms of buildings) may support the demand of EVs and even provide a relevant amount of green kms out of PED boundaries.

Sign in / Sign up

Export Citation Format

Share Document