scholarly journals Energy passivation of a building. The ICSTM building case study

2019 ◽  
Vol 112 ◽  
pp. 02003
Author(s):  
Otilia Nedelcu ◽  
Ioan Corneliu Salisteanu ◽  
Traian Ivanovici ◽  
Valentin Dogaru
Keyword(s):  
Renewable Energy ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Renewable Sources ◽  
Consumption Data ◽  
External Power ◽  
Technological Research Institute

The renewable energy sources are becoming more and more current in the energy supply of buildings, from residential buildings to institutional buildings. The renewable energy sources have proved to be a solution and an important element of the Romanian Energy System. We are starting from the idea of using the renewable sources to passivize a building, and we are relying on existing facilities in the Multidisciplinary Scientific and Technological Research Institute (ICSTM) from Valahia University of Targoviste (UVT) to produce the energy from its own sources. We are also considering the consumption data from previous year as well as the electric link to external power grid. This paper aims to propose new renewable energy units so that ICSTM become energetical independent. Currently, the ICSTM building consumes an amount of energy produced from renewable sources about three times less than that consumed from the external network. In order to determine the number of equipment, specifically CPV (concentrating photovoltaic) panels placed on trackers, it is desirable to create a 40% reserve above the installed power, taking in account the possible future development of the research laboratories.

scholarly journals Use of an Under-Water Compressed Air Energy Storage (UWCAES) to Fully Power the Sicily Region (Italy) With Renewable Energy: A Case Study

2021 ◽  
Vol 7 ◽  
Author(s):  
Francesco Antonio Tiano ◽  
Gianfranco Rizzo
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Compressed Air ◽  
Energy Sources ◽  
Compressed Air Energy Storage ◽  
High Concentration ◽  
Renewable Sources

The high concentration of CO2 in the atmosphere and the increase in sea and land temperatures make the use of renewable energy sources increasingly urgent. To overcome the problem of non-programmability of renewable sources, this study analyzes an energy storage system consisting of under water compressed air energy storage (UWCAES). A case study for fully power the Sicily region (Italy) with renewable energy source (wind and photovoltaic) is presented. From the real annual capacity values of the renewable plants installed in Sicily, a sizing of both the energy production and the storage system and its auxiliary services is evaluated. The optimization of the operation of the system as a whole, modeled with mathematical models already validated in previous studies, is obtained through dynamic programming. The electricity consumed annually by the region, equal to 19048.4 GWh, can be entirely satisfied by renewable energy sources. A sizing of plants powered by renewable sources for a nominal power of 15, 000 MW equally divided between photovoltaic and wind power is considered. The underwater air storage system has a maximum volume of 2.1 × 108 m3, while the compression and generation units have a total nominal power of 6, 900 and 3, 100 MW, respectively. The study finally presents a sensitivity analysis for the evaluation of the effects of the variation of the power produced by renewable energy sources and of Sicily energy consumption. The results show that carbon-free feeding is possible and that all the boundary conditions on the operation of the system can be met.

scholarly journals Campus and community micro grids integration of building integrated photovoltaic renewable energy sources: Case study of Split 3 area, Croatia - part A

2016 ◽  
Vol 20 (4) ◽  
pp. 1135-1145 ◽  
Author(s):  
Goran Gasparovic ◽  
Siir Kilkis ◽  
Goran Krajacic ◽  
Neven Duic
Keyword(s):  
Renewable Energy ◽  
Urban Areas ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Planning ◽  
Energy Sources ◽  
Decentralized Generation ◽  
Building Integrated Photovoltaic ◽  
Micro Grids

Micro grids interconnect loads and distributed energy resources as a single controllable entity. New installations of renewable energy sources (RES) in urban areas, such as Building Integrated Photovoltaic (BIPV), provide opportunities to increase energy independence and diversify energy sources in the energy system. This paper explores the integration of RES into two case study communities in an urban agglomeration to provide optimal conditions to meet a share of the electrical loads. Energy planning case studies for decentralized generation of renewable energy are conducted in H2RES energy planning software for hourly energy balances. The results indicate that BIPV and PV in the case study communities can cover about 17% of the recorded electrical demand of both areas. On a yearly basis, there will be a 0.025 GWh surplus of PV production with a maximum value of 1.25 MWh in one hour of operation unless grid storage is used. This amounts to a total investment cost of 13.36 million EUR. The results are useful for proposing future directions for the various case study communities targeting sustainable development.

scholarly journals Impact of Material On Energy Efficiency of Distribution System

2019 ◽  
Author(s):  
Peter Hrabovský
Keyword(s):  
Renewable Energy ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Performance ◽  
Energy Sources ◽  
Material Structure ◽  
The Sun ◽  
Renewable Sources ◽  
The Earth

The article focuses on technologies that are closely linked to the use of renewable energy sources. We are living at a time when the emphasis is on increasing the share of production and use of heat and electricity generated by technologies using the sun, wind, water and earth. By transforming energy from sources like the Sun and the Earth, we use solar, photovoltaic collectors, heat pumps and circulation systems. Energy production in these ways is limited, therefore the research and development of individual systems is pushing the possibilities of using renewable energy sources forward. The main objective of obtaining energy from renewable sources is to cover the energy performance of buildings and people’s requirements to ensure optimal thermal comfort with maximum use of energy from renewable sources. When designing the required technologies, it is necessary to emphasize the choice of construction material for individual parts of the energy system. If we want to extract energy from the earth it is necessary to design a material suitable for aggressive soil environment – the Earth’s shell. The negative impact of soil chemical and physical properties affects not only the material structure of a part of the technology, but also the overall efficiency of the energy system.

scholarly journals The Energy System of an Ecovillage: Barriers and Enablers

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 682
Author(s):  
Zita Szabó ◽  
Viola Prohászka ◽  
Ágnes Sallay
Keyword(s):  
Renewable Energy ◽  
Spatial Structure ◽  
Energy Management ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Management System ◽  
Production And Consumption ◽  
Ecologically Sustainable

Nowadays, in the context of climate change, efficient energy management and increasing the share of renewable energy sources in the energy mix are helping to reduce greenhouse gases. In this research, we present the energy system and its management and the possibilities of its development through the example of an ecovillage. The basic goal of such a community is to be economically, socially, and ecologically sustainable, so the study of energy system of an ecovillage is especially justified. As the goal of this community is sustainability, potential technological and efficiency barriers to the use of renewable energy sources will also become visible. Our sample area is Visnyeszéplak ecovillage, where we examined the energy production and consumption habits and possibilities of the community with the help of interviews, literature, and map databases. By examining the spatial structure of the settlement, we examined the spatial structure of energy management. We formulated development proposals that can make the community’s energy management system more efficient.

scholarly journals Renewable energy sources in future energy balance of the republic of Kazakhstan

2018 ◽  
Vol 58 ◽  
pp. 03006 ◽  
Author(s):  
Bekzhan Mukatov ◽  
Ravil Khabibullin
Keyword(s):  
Renewable Energy ◽  
Development Strategy ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Basic Principles ◽  
The World ◽  
Main Factors ◽  
The Republic

The article describes the main factors determining the development of renewable energy sources in the world. The assessment of the applicability of foreign RES development strategies to Kazakhstan’s energy system has been made. The main tasks facing Kazakhstan’s energy system with large-scale implementation of renewable energy were formulated. On the basis of the analysis and performed calculations recommendations and basic principles have been made on development strategy of renewable energy sources in the Republic of Kazakhstan.

Sign in / Sign up

Export Citation Format

Share Document