Hållbar långtidslagring av egenproducerade el integrerat i effektmarknad

Carbon dioxide emissions causes catastrophic consequences and is a major cause of global warming. In connection with this, there is an increased demand for energy, which in turn contributes to increased emissions of greenhouse gases and other pollutants. This has contributed to a large-scale discussion of potential solutions, where many researchers agree that hydrogen energy systems are currently the best solution to the problem. This degree project has been done in collaboration with AirSon Engineering AB with a focus on long-term storage of electricity in the form of hydrogen. The method of research is of a qualitative and quantitative nature. To obtain the best result, scientific articles have been studied, data analyzed and the simulation programs Matlab & PVGIS has been used. Relevant questions have also been asked to companies and authorities for advice. In the result, 3 different System solutions have been presented that works as long-term storage of self-produced renewable electricity in the form of hydrogen and battery. All these Systems have their advantages and disadvantages. System 1 is an On-Grid system with a small PV-system compared to System 2 and System 3. System 2 is a pure Off-Grid System with a giant PV-system and hydrogen storage. System 3 is also a possible off-Grid system connected to hydrogen storage for long-term storage and a battery for short-term storage. The advantage of system 1 is that it is an On-Grid system, and the system has a relatively small PV plant compared to System 2 and System 3. This means that the total costs for System 1 is much lower than the other systems. System 2 is an Off-Grid system, to handle the electricity consumption requires System 2 a very large PV plant and a large hydrogen storage, which means high system costs for the installation of the system. System 3 is also a possible off-Grid system where electricity from the grid does not need to be purchased, but to use the entire electricity production, the overflow of electricity needs to be sent to the grid. System 3 is most expensive system compared to system 2 and system 1.