Fuel cells convert the chemical energy of reactants (hydrogen, air) into water and exhaust heat, thus providing clean energy generation for both stationary and transport uses. In transportation, fuel cells are particularly useful for long-haul heavy-duty vehicles thanks to the shorter re-fuel...

Anthropogenic environmental pollution has become a global concern due to its profound impact on Earth's ecosystems. This study examines the interrelation between energy resources (both renewable and non-renewable), economic growth, and CO2 emissions across G-20 countries, using historical data...

Hydrogen energy systems (HES) are increasingly recognized as pivotal in cutting global carbon dioxide (CO2) emissions, especially in transportation, power generation, and industrial sectors. This paper offers a comprehensive review of HES, emphasizing their diverse applications and economic...

The role of distributed energy resources (DERs) in future power systems is becoming increasingly important due to the ongoing transformation of the electricity sector towards carbon neutrality and higher decentralization. As changes in the demand side continue, such as the adoption of electric...

This article presents the results of the research on energy activities in Romania by highlighting the variants of the mix of energy resources, the mix of production alternatives, and ways of energy consumption. The uneven distribution of resource ownership in EU member states is a comparative...

Management commitment and perception of the need to adapt and adjust hotel operations in the face of the energy crisis on the path of reducing energy consumption under the REPowerEU plan have been little addressed in the literature, although it is a very topical issue. This research fills this...

Klappentext: "Energy history is an approach to understanding the past that takes changes in the human exploitation of Earth's energies as its object of inquiry. This interdisciplinary field documents and analyzes how humans thought about, harnessed, stored, and exploited stocks and flows of...

Energy return on investment (EROI) is a biophysical and ecological economics concept that is useful to think about how organisms, ecosystems and societies must obtain enough surplus energy returned from energy gathering activities to live, reproduce, and thrive. EROI can help us overcome the...

Policy changes that encourage non-fossil fuel energy means increased reliance on batteries and other technologies that must develop rapidly. This article focuses on batteries, noting that key inputs come from corrupt countries, so little of the benefits of exports flow to citizens, and many key...

The deployment of behind-the-meter energy resources is set to increase in the next decade. Yet, utilities are not ready to safely manage these resources owing to the lack of visibility into behind-the-meter installations. To address this problem, we propose an unsupervised method to decompose a...

Uncertainty in the energy sector of Pakistan has contributed to the necessity of effective electricity planning that can minimize given market risks and discourage the use of stand-alone generating costs. To this end, this paper leverages the mean-variance portfolio theory to design an efficient...

The continued development of distributed energy resources (DER), information and communications technologies is enabling a greater number of parties to participate in electricity markets. This review explores the various methods that DERs may utilize to participate in electricity markets, the...

Ever-increasing coupling of energy and mobility sectors is under way in our cities. However, whether and how to use such coupling to optimize the portfolio and operations of urban energy assets has rarely been studied. We fill this gap by studying "omni-sharing,'' which is a novel business model...

Die Wirtschaftspolitik steht angesichts der Schwere der Energiepreiskrise vor großen Herausforderungen. Mit den drei Entlastungspaketen hat die Regierung zwar einige wichtige Impulse gesetzt, eine stringente Linie lässt die Wirtschaftspolitik jedoch vermissen. Sämtliche Maßnahmen sollten...

As the world's third-biggest emitter of greenhouse gases, India has pledged to achieve net-zero carbon emissions by 2070. The electricity sector is at the forefront of decarbonisation initiatives and distributed energy resources (DERs) are expected to play a key role in enabling the country to...

This study aims to stimulate discussion of the country’s policy framework for managing existing and potential energy resources. It argues that a well-designed Sovereign Wealth Fund (SWF) can positively transform the country’s management of proceeds from energy resources as well as bolster...

"Eighty years after oil was first discovered in Qatar, a small nation often ignored in favor of its richer and larger Gulf neighbors, it is now an energy behemoth exporting vast amounts of liquefied natural gas, condensates, refined products, petrochemicals, and fertilizers. The country also...

The fossil fuel industry has filed an increasing number of dormant Commerce Clause lawsuits to overturn actions by coastal states and cities rejecting proposals for new coal and oil export facilities in their jurisdictions. These lawsuits are creating a wholly new “law of energy exports”...

The rapid growth of Distributed Energy Resources (DER) and their integration into network presents currently the greatest challenges for many network operators worldwide in terms of network stability and power quality. To meet these challenges not only huge investment in grid expansion and smart...

The integration of Combined Heat and Power (CHP) systems, especially fuel cell systems, into buildings have attracted a lot of interest these last years. It is due to their higher efficiency, cleanliness and their capability for producing both valuable thermal energy and electricity, from a...

This article presents a non-conventional design approach of high order passive filters incorporated with distributed energy grid integration systems based on particle swarm optimization (PSO) as one of multi-objective evolutionary search algorithms. Two topologies of passive grid filters (third...