Results 71 to 80 of about 11,258 (307)

Nanocubes and Cuboctahedra: Entropic Stabilization Versus Thermal Segregation in Rock Salt‐ and Spinel‐Type Multinary Oxides from Spray‐Flame Synthesis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh   +7 more
wiley   +1 more source

Hydropower: Time for a Small Makeover

open access: yesIndiana International & Comparative Law Review, 2013
Over the last several years, hydropower has supplied between 6 and 8 percent of the electricity consumed in the United States.2 It is the most abundant, most efficient, and least expensive source of renewable electricity generation on earth.3 Yet, when most people think of hydropower they think of huge dams, dead fish, and a destroyed environment ...
openaire   +3 more sources

Sustainable Development of Small Hydropower Plants (SHPs)

open access: yesEnergy Sources, 2004
The aim of this article is to investigate the small hydropower plants (SHPs) in Turkey. Total hydropower potential of Turkey is annually 433,000 GWh. Almost 50% of the total potential is technically exploitable and 29% (122,322 GWh/year) is economically exploitable.
Bakis, R, Demirbas, A
openaire   +2 more sources

Bipolar q $q$‐Fractional Fuzzy Aggregation Operators for Multi‐Criteria Decision‐Making in Optimal Renewable Energy Selection

open access: yesEnergy Science &Engineering, EarlyView.
This study introduces bipolar q‐fractional fuzzy sets and new aggregation operators to support renewable energy selection under uncertainty. The proposed decision‐making framework effectively integrates positive and negative evaluations, ensuring consistent ranking and robust performance, as demonstrated through practical analysis and comparative ...
Sagvan Y. Musa   +3 more
wiley   +1 more source

Optimization and Cost Evaluation of an Autonomous Hybrid Renewable Energy System for Electrifying Rural Areas in Nigeria

open access: yesEnergy Science &Engineering, EarlyView.
This research explores the techno‐economic and environmental performance of fully renewable hybrid energy systems for rural electrification in Auchi, Nigeria. HOMER Pro is utilized to model and optimize PV/WT/Battery, PV/Battery, and WT/Battery configurations under identical conditions.
Ibrahim Seidu   +7 more
wiley   +1 more source

Design and operation of small hydropower projects in Scotland

open access: yes, 2019
In recent years, government incentives have led to the development of numerous small hydropower projects in the Scottish Highlands, four of which are described in this paper.
Veitch, A.   +2 more
core  

Hybrid Osprey‐Salp Swarm Optimization Algorithm for Single and Multiobjective Optimal Power Flow in Smart Grids With Renewable Energy Integration

open access: yesEnergy Science &Engineering, EarlyView.
The proposed hybrid osprey‐salp swarm optimization algorithm addresses optimal power flow (OPF) problems in smart grids incorporating solar, hydro, and thermal generators. The algorithm is validated on Institute of Electrical and Electronics Engineers 30‐, 57‐, and 118‐bus test systems across five single and multiobjective OPF scenarios.
Mujtaba Ali   +5 more
wiley   +1 more source

The Contribution of Small Hydropower Plants in Clean Electrification: Current Status and Future Prospects for Greece

open access: yesEnergies
The expected fossil fuel reserves, along with the continuous environmental degradation, underline the necessity to turn to more environmentally friendly energy resources. However, the significant exploitation of variable or even stochastic solar and wind
John K. Kaldellis
doaj   +1 more source

Renewable Energies in Kazakhstan: Current Status, Potential, Challenges, and Opportunities

open access: yesEnergy Science &Engineering, EarlyView.
Kazakhstan has strong renewable energy potential, with wind as the leading resource and solar and other sources offering additional opportunities. Key challenges include limited infrastructure, investment needs, and grid‐related technical issues. Despite these barriers, renewables can boost economic diversification, enhance energy security, create jobs,
Lyailim Taizhanova   +7 more
wiley   +1 more source

Enhancing Peak Shaving Efficiency in Small Hydro Power Plants Through Machine Learning-Based Predictive Control

open access: yesEnergies
Small hydropower plants (HPPs) equipped with water storage play an important role in managing fluctuating energy demand. This article presents a real-world case study in which model predictive control (MPC), driven by energy-demand and water-inflow ...
Francesca Mangili   +4 more
doaj   +1 more source

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