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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 …
Där värme- och elproduktion samt lönsamhet studeras och avfall är huvudbränslet
… is expected to decrease in the future, due to competition from heat pumps and energy efficiency measures in buildings. Development of existing district heating systems is therefore necessary for district heating companies to maintain market shares. This Master’s thesis describes …
an analysis of key actor’s positions in Sweden
Bioenergy from the forest has been heavily debated in Sweden for several decades due to the interest of society to decrease dependence upon fossil fuels and limit the effects of climate change. The actual use of bioenergy from the forest has shifted over the years but increased …
En litteraturstudie och rötning i labbskala
Until 2020, 49% of Sweden's use of energy must derive from renewable sources. Greenhouse gases must as well decline with 40% compared to 1990 as a part of Sweden's 16 environmental objectives. Biogas is part of the effort to achieve these objectives, but as the demand for biogas …
… tank used to allow different operating modes. When there is an excess of solar energy from the solar collectors the borehole should be recharged and be stored in the ground for a shorter period of time. The heat pump refrigerants should also be preheated in the storage tank …
… (photovoltaic) systems, in Australia. Due to the global warming, sustainable energy has in recent years become an increasingly important issue, both internationally and in Australia. With one of the largest dependencies on fossil energy sources in the world, the country's …
Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent …
… findagent-principal relations in the construction sector.When investing in an energy efficient house the operating costs are reduced compared to aconventional house. But due to the lower operating costs, the investment cost rises. In thisstudy, we find out if it is economically …
… findagent-principal relations in the construction sector.When investing in an energy efficient house the operating costs are reduced compared to aconventional house. But due to the lower operating costs, the investment cost rises. In thisstudy, we find out if it is economically …
Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle …
Ekonomisk potential fram till 2030
… Uppsalahem is owned by the municipality of Uppsala, which has a climate and energy goal that aims for 100 MW of solar energy to be installed in Uppsala by 2030. The 100 MW goal, combined with Uppsalahem’s environmental policy, is a strong incentive to investigate the possibility …
en projektanalys utifrån ett företagsekonomiskt perspektiv
… generates combined heat and power, which can be used at the farm to reduce energy cost. The process also generates a digestate, with better utilization of nutrient compared to cattle manure. The aim of this study is to analyze the profitability of a farm-scale biogas plant for …
… of where electricity should origin from. It is now supposed to be renewable energy. It this study I have taken in consider how to build a small hydropower plant, all the way from applications to the county administrative board to planning and calculating. The most important …
… and performance of the harvesting system, as well as on chipping costs and energy prices. It was finally found that a management model with extraction of biomass for bioenergy from young stands showed promise. In such a model areas to compose future strip roads are left …
etanol som fordonsbränsle
… 95 % alcohol is used as a neat fuel in E100 cars. Ethanol contains 60 % of the energy value of gasoline but gives higher torque and peak performance, so an E100 car will use about 15- 20 % more fuel/mile. The measures that were taken to stimulate the ethanol production can be …
