From solar to hydrogen energy: Modelling, design, and construction of a system for hydrogen production using photovoltaic panels.

<br/>Efficiency improvements of solar cells, growth in photovoltaic cells manufacturing, and declining prices of solar modules are just a few of the factors that have allowed solar power to break records (320 GW) in global cumulative installed capacity in 2016. In the energy systems of the future, solar energy will be the predominant energy...

On-site wind powered hydrogen refuelling stations: From national level to a case study in Germany

Hydrogen refueling stations are an important part of the infrastructural development that should be developed in order to realize a 100% sustainable economy for the future. Most of the refueling stations are located within urban areas but there are many located outside urban areas or in remote areas. Hydrogen could either be transported to...

Regeneration of NiAl₂O₄ spinel type catalysts used in the reforming of raw bio-oil

The regenerability of Ni catalysts in reforming reactions is a key factor for process viability. Accordingly, this study addresses the regeneration of two spinel NiAl₂O₄ type catalysts by reaction-regeneration cycles in the oxidative steam reforming (OSR) of raw bio-oil. The spinel type catalysts were prepared by...

Improving a Silicon Based Triple Junction Cell for Solar Water Splitting

In the transition towards a renewable based energy supply, one of the main challenges is the intermittent nature of most renewable energy sources. In order to ensure a stable energy supply, different storage technologies attract a lot of research attention. For long term storage, using hydrogen as artificial fuel is a promising option. However,...

Fuel cell electric vehicle as a power plant: Fully renewable integrated transport and energy system design and analysis for smart city areas

Reliable and affordable future zero emission power, heat and transport systems require efficient and versatile energy storage and distribution systems. This paper answers the question whether for city areas, solar and wind electricity together with fuel cell electric vehicles as energy generators and distributors and hydrogen as energy carrier,...

The Battolyzer: Combined short- and long-term energy storage

In the study described in this thesis, it is demonstrated that combined short-term and long-term energy storage in one device, the battolyzer, is possible. The battolyzer is a device that works as a rechargeable battery, and that is capable of performing highly efficient electrolysis with any excess electricity. The battolyzer was based on the...