Er det lønnsomt å produsere hydrogen fra solenergi til tungtransportformål i Norge?
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- Master's theses (INA) 
Large volumes of Norway's greenhouse gas emissions are associated with road transport, of which about one third of the emissions come from the heavy transport sector. The problem is that the heavy transport sector has such a large share of the greenhouse gas emission but only occupies about three percent of the registered vehicles in Norway. Heavy transport is thus an area that has great improvement potentials. One technology that can improve the heavy transport sector is hydrogen and fuel cells. A transition from diesel fuel and combustion engine to hydrogen and fuel cell will give zero-emission lorries with a by-product that is water. In Norway, there are warehouse buildings all over the country, these buildings extend over large areas. The roof areas today are largely unused, apart from various heating / cooling systems, antennas and other components that are important for the building. These areas can be used for electricity generation using solar cells. A problem with renewable energy is that the energy produced often needs to be used right away, in some cases like hydropower, you can save the energy until you need it. Storage opportunities are therefore essential for several of the renewable energy sources, as power generation is unpredictable due to weather and wind. Electrolysis is a method that uses electricity to produce gas hydrogen. And converting electricity and water to hydrogen can be seen as a processing process. The advantage by processing the electricity to hydrogen is that you can store it as a gas in storage tank and use the energy when it is needed. This study will attempt to detect how much hydrogen is possible to produce from electrolysis using solar cells on a large warehouse roof. In addition, the profitability of a projected project and how much the investment is affected by changes is considered. Part of the analysis was to see how many trucks one can operate all year based on this technology. The economic analyzes in this exercise show that there are several factors involved in assessing the profitability of an investment consisting of an electrolysis and solar cells. The results of these analyzes show that such an investment today can be profitable if conditions are correct. As it is virtually impossible to predict how diesel prices is going to develop in the future, the investment depends on diesel prices rising or that the investment costs are reduced. On the other hand, the results show that if investment costs are reduced, this will provide a higher margin for profitability and the investment is not as dependent on the reduction in diesel prices.