June 12, 2020Japan is facing a severe challenge regarding its heavy dependence on fossil fuels: currently they account for 89% of total energy consumption. After the Great East Earthquake, energy security and vulnerability have become critical issues facing the Japanese energy system. The integration of renewable energy sources to meet … Continue reading
Category Archives: Hydrogen
Review of Potential Liquid-Organic Hydrogen Carrier (LOHC) Systems
November 19, 2020The depletion of fossil fuels and rising global warming challenges encourage to find safe and viable energy storage and delivery technologies. Hydrogen is a clean, efficient energy carrier in various mobile fuel-cell applications and owned no adverse effects on the environment and human health. However, hydrogen storage is … Continue reading
Operation of Solar-Storage-Hydrogen-Charging System by Value Stream Analysis
April 24, 2020The topology of the clean energy system is a flexible structure with PV, wind power, hydrogen storage, and battery storage. Thus, the construction and operation of the clean energy system should pay more attention to the temporal and spatial variations. This paper discussed a solar-storage-hydrogen-charging demonstration to accommodate … Continue reading
Hydrogen Production from Offshore Wind Parks
June 16, 2021Hydrogen has the potential to be combined with offshore wind energy to aid in overcoming disadvantages such as the high installation cost of electrical transmission systems and transmission losses. This paper aims to outline and discuss the main features of the integration of hydrogen solutions in offshore wind … Continue reading
Assessment of Energy Storage from Photovoltaic Installations Using Hydrogen or Batteries
August 4, 2020This paper presents a series of economic efficiency studies comparing three different investment variants: without energy storage, with energy stored in batteries and hydrogen installation with a PEM fuel cell stack for a location in Poland.
Storing Energy as Hydrogen
November 19, 2020Extensive research on photovoltaics (PV) cooperating with energy storage systems are conducted all over the world. For example, in reference [27] the authors show a PV installation connected with a hydrogen production system. Paper demonstrates that with a proper design of the system proposed by the authors it … Continue reading
Storing Hydrogen
October 19, 2020In some areas, the problem of wind and solar power curtailment is prominent. Hydrogen energy has the advantage of high storage density and a long storage time. Multi-energy hybrid systems including renewable energies, batteries and hydrogen are designed to solve this problem.
Dissociation Of Water Into Hydrogen And Oxygen Through A Combination Of Electrolysis And Photocatalyst
July 28, 2020In this paper, through a review of the literature, a method of separating hydrogen and oxygen from water through a photocatalysis process that utilizes the energy of photons from visible light is combined with the electrolysis process to increase hydrogen production with a fairly small current.
Improving Sustainable Hydrogen Production From Green Waste
September 16, 2021Bio-hydrogen production via dark fermentation of low-value waste is a potent and simple mean of recovering energy, maximizing the harvesting of reducing equivalents to produce the cleanest fuel amongst renewables. Here, an alternative application of green wastes, low-value compost and intermediate products (partially composted but unsuitable for completing … Continue reading
Green Hydrogen, Spaceship Earth, and a Circular Economy
December 2020Based on a review of the literature, researchers synthesize some aspects which represent in their understanding the essence of the circular economy concept. While in no way intended to be absolute, definitive and final, these aspects represent a level of understanding of the concept at this specific moment.