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4221 Uppsatser om Future Electricity Networks - Sida 3 av 282
Utredning av fastighetsel i ett äldre och ett ombyggt flerbostadshus i Gävle
The residential and service sector in Sweden accounts for approximately 38% of the total energy usage and Sweden has an aim to reduce the total energy use by 20% by 2020 compared to 2008, which means residential sector will have to improve energy efficiency. As part of that a law was instituted by the Swedish parliament that all properties must have an Energy Performance Certificate (EPC) to thereby give the property owners a greater insight into energy use in their buildings and propose recommendations for energy-efficiency measures. On the EPC, a value on the building's energy performance in terms of energy use in kWh / m2 per year is declared, of which electricity is a share of it. Instructions on what to include in the amount facility electricity for running the facilities is regulated by the authority for building, Boverket while SVEBY has made an interpretation of the regulations in their report "Brukarindata bostäder" where they have a table on what should be included in the amount and what not to include.This report is a study of two similar apartment buildings, where one of the buildings recently underwent renovation, to see if the declared amount of energy for electricity, in the EPC, is consistent with the measured value, and whether there has been any reduction in facility electricity in the renovated building after the renovation.The result shows that the measured value of the building electricity was 2.6 kWh / m2 per year, 28,8 %, lower than the declared value in the building that have not undergone a renovation. Calculation of values from previous years (2011) by the same percentage of facility electricity as in the results of the measurements, 56.7%, it becomes clear that the declared value for facility electricity in the EPC of the renovated building do not correspond with reality and that there has been an increase in use of facility electricity after the renovation..
Småskalig vattenkraft :
Small hydropower plants have been an important source for electricity for many years.
During the 70?s the general thought was that nuclear was the future. Around 2000 small
waterpower plants were shut down. It wasn?t profitable to invest in.
ELCERTIFIKAT - En diskussion kring de svenska elcertifikatens rättsliga natur, ekonomiska värde samt möjlighet att ta i anspråk vid en utmätning -
1st of may 2003, a new energy system based on electricity certificates, was initiated in Sweden. The purpose with this system, is to stimulate an enlargement of energy production from renewable sources. The electricity system, ist built on that the producers of energy from renewable sources confer a electricity certificate from the government for every produced MW energy from renewable sources. The electricity certificate is supposed to be turned over and with that generate reciepts to the producers. Furthermore there is an obligation for the energyusers und energysuppliers, that means that the users and the suppliers every year the 1st of april got to have electricity certificates in proportion to their energy consumption during previous year.
Tillit i moldavien
Moldova is one of Europe?s poorest countries with a struggling business environment and an unpredictable political situation. The purpose of this thesis is to understand the implications of corruptions and why networks have come to play a key role in the Moldovan culture and if the formations of network are due to heritage or an effect of functionalism. The focus of the study is also to explain how the networks develop and the formation and maintenance of loyalty and trust among the members of the network. The study is of a qualitative nature that uses a key informant sampling method to get access to members of different business networks.
Kartläggning och utvärdering av produkter och tjänster kopplat till begreppet Smart Grids
The Smart Grids development is driven by forces concerning safe electrictransmission done in an energy efficient way. Vattenfall Eldistribution AB has a visionto transform their electricity network into Smart Grids. To invest in Smart Grids theyhave a need to show their customers what advantages they will get from thedevelopment. This led to the formulation of this dissertation project where the aim isto identify products and services related to Smart Grids that will increase thecustomer satisfaction for Vattenfall Eldistributions private customers.The project started with a mapping of existing products and services on the Swedishelectricity market. From the mapping several development possibilities for VattenfallEldistribution were identified.
Marknadsföring, relationer och nätverk hos forskningsbibliotek - en beskrivning och analys
The major aim of the thesis is to describe the networks, relations and marketing of some university libraries and their customers in the year 2000. I illustrate how these issues interact and whether they have changed due to the recent development of technology and if so, how. The thesis is based on interviews with two directors of libraries and two librarians at two different libraries. A small survey with 16 questionnaires has also been performed in order to get a more general view on librarians' opinions in these questions. The thesis mainly shows that the networks in which the respondents take part primarily exist in the library sphere and towards the universities.
Kärnkraftens värde i framtiden : en jämförelse med kraftvärmeteknologi från biobränsle
The debate on the future of Nuclear power in Sweden has increased with the discussion on global warming. The uncertainty of fossil fuel- and carbonprices the latest years has aroused considerable interest in Nuclear from power companies, industry and politicians. Nuclear power plants have negligible CO2 emissions and are not directly affected by increased price of emission rights and fossil fuels. The future power production needs to reduce its emissions of greenhouse gases to become sustainable.
The purpose of this study is to examine the value for power producers to have the option to invest in Nuclear power and how a Nuclear power venture would affect future electricity prices. The study uses two methods, a traditional cash flow model and real option analysis, to estimate the value of Nuclear power.
Vad påverkar till motivation i skolan
The major aim of the thesis is to describe the networks, relations and marketing of some university libraries and their customers in the year 2000. I illustrate how these issues interact and whether they have changed due to the recent development of technology and if so, how. The thesis is based on interviews with two directors of libraries and two librarians at two different libraries. A small survey with 16 questionnaires has also been performed in order to get a more general view on librarians' opinions in these questions. The thesis mainly shows that the networks in which the respondents take part primarily exist in the library sphere and towards the universities.
Hur påverkar en ökad andel solceller Umeå Energis elnät? : ? En utredning med fokus på spänningsvariationer och osymmetri inom landsbygds- och tätortsnät vid en- och trefasanslutning av solcellsanläggningar
A good power quality can be an important prerequisite to achieve a sustainable society. Scandinavia's electrical system is in many respects superior, and Sweden has a fossil free electricity generation at 97 % and a reliability of electricity distribution at 99.98 %. Meanwhile, the EU has an ambition to expand the electricity market in order to achieve a joint trading business across Europe. This cross-border market will result in a large proportion of fossil energy sources integrated into our electrical system, which also leads to an increased need for renewable electricity production in Sweden. One part of this development is to increase the share of renewable micro generation that is locally or regionally connected to the power grid.
Sociala nätverk och det ökade användandet : En studie om det har skett en normförskjutning av användandet samt hur det relaterar till traditionellt beroende
The internet has become an increasingly part of everyday life with digital artefacts like smartphones and tablets. We?re looking at the usage of social networks and how the usage relates to traditional addiction. We conducted a quantitative research where 84 poeple finished our web survey. Our research focused on addiction, time spent on social networks, normal and non-normal usage and general user patterns.
Personliga nätverk: en fallstudie om personliga nätverk inom musikindustrin
The purpose of this thesis was to illustrate the connection between personal networks and entrepreneurial business in the music industry. It also aims to examine how and why entrepreneurs in the music industry use personal networks in their entrepreneurial business activities. In order to explore the extent to which entrepreneurs in the music industry obtain support through personal networks, a case study was conducted based on interviews with entrepreneurs in various areas of the music industry. The study has shown that entrepreneurs in the music industry clearly see distinct advantages through the use of their personal networks, especially in terms of an enhanced supply of resources and through an increased amount of business opportunities. Personal networks have also shown to constitute a considerable amount of moral support for the entrepreneurs in the development process of the entrepreneurial business.
Smarta lokala energisystem, Vision-Teknik-Tillämpning
The energy sector is facing an impending paradigm shift. Today?s technology enables the end-user to generate their own energy locally at home. Furthermore, recently developed storage technologies make it possible to balance energy demand with stored energy and integrate district heating with the local power grid. This means that in the future heat and electric power will interact and energy flows is converted over energy boundaries.
Bara, bara vara "vänner" : En explorativ studie av den professionella socialarbetarens användande av sociala medier inom socialtjänsten
The aim of this study was to enlighten social workers experiences of social networks direct influence in Swedish social services, and in which ways those influences are manifested. Some of the issues that are being explored in this study are: The separation of the private sphere and professional duties; boundaries and dual relationships that occurs inside social networks; the use of social networks as a control-instrument in authority exercise towards clients; and social networks arising impact on social work. The empirical material was collected with nine qualitative interviews with social workers stationed at different social service departments in a Swedish municipality. Also one qualitative e-survey was sent out to, and answered by four social workers with a managerial position in the same municipality.The results reveal that several informants have experienced different problematic situations involving clients within the social networks. This study shows that the informants are very restrictive with what information (text and pictures) they publish on their facebook-profiles, because of their position of authority and the awareness of the possibility of always being watched.
Undersökning av solcellspotentialen för golfverksamheter i Sverige
Photovoltaic Systems in Sweden has longbeen heavily dependent on subsidies and grants to bring in a profit for the investor. Production of excess electricity is a major reason for this as the compensation for excess electricity today is low. However, there are businesses that have an electricityneed that are particularly suitable for solar electricity. These businesses have an electricity demand when the sun shines the brightest and if the Photovoltaic System is properly scaled, the excess electricity can be minimized. A golf club is that kind of a business and this thesis aims to examinate the solar power potential for golf businesses in Sweden.Nine golf clubs was selected from different locations in Sweden.
Rätt gåva för rätt tillfälle
This master thesis is a study of the Swedish hydropower capacity to balance wind power. The Swedish government has decided that it should be possible to produce 30 TWh from wind power in the year 2020. The Swedish municipalities have to have plans for wind power plants with total yearly generation of 30 TWh. Wind power is an variable energy source that needs to be balanced by other energy sources. In Sweden the Swedish hydropower can be used for balancing a large scale introduction of wind power.