OOIR: Observatory of International Research

Papers

(The H4-Index of Renewable Energy is 119. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-04-01 to 2025-04-01.)

Article	Citations
Economic viability of floating wave power farms considering the energy generated in the near future	516
Enhancing radiative sky cooling performance by employing crossed compound parabolic concentrating configurations	425
Optimizing load response programs in generation expansion planning: A real-time pricing scenario with responsive load aggregators	407
A novel concept of integrating bell-mouth inlet in converging-diverging solar chimney power plant	364
Toward a highly efficient photovoltaic thermal module: Energy and exergy analysis	306
Renewable energies: Simulation tools and applications. A special issue of Renewable Energy Journal dedicated to BS 2019 conference	302
Design, techno-economic feasibility analysis, and sensitivity study of an off-grid hybrid microgrid for developing communities	284
Increasing the deployment of solar PV in the commercial sector in South Africa: Buildings as assets for energy transition	283
Performance of a sedimentation tank for standing column wells coupled with geothermal heat pump systems	280
Hybridization solutions for solar dish systems installed in the Mediterranean region	272
The effect of turbine characteristics on the thermodynamics and compression process of a simple OWC device	271
Characteristics of wave energy resources on coastal waters of northeast Taiwan	261
Experimental investigation on direct expansion solar-air source heat pump for water heating application	260
Determinants of the development of photovoltaics in Poland	258
A study on the characteristics and kinetic of co-catalytic pyrolysis with rape straw and ABS waste plastics	257
Experimental investigation of wind loads on solar arrays with varying row configurations and tilt angles	250
Proposal of a parabolic-trough-type spectral splitting concentrating photovoltaic-photothermal (SSCPVT) system for combined power and heat generation	246
An advanced heat design-CO2 capture network for an oxy-biogas fuel combustion cycle combined with a CAES-based method for peak shaving: An artificial intelligent-driven optimization	241
Regional assessment of extreme tropical cyclone waves for marine renewable energy development	239
Advancements in device modelling and impedance analysis of a high performance disilicide (FeSi2)-based perovskite solar cell	229
Experimental and kinetic analysis of hydrogen production via hydrogen sulfide catalytic splitting	227
Research progress in SO2 depolarized electrolysis at INET	224
Estimation of solar photovoltaic efficiency under the urban heat island effect	222
Measuring the effects of sediment variation and evaporation loss on the overall operational efficiency of hydropower systems: A robust network data envelopment analysis model	221
A novel ensemble machine learning approach for optimizing sustainability and green hydrogen production in hybrid renewable-based organic Rankine cycle-operated proton exchange membrane electrolyser sy	221

Kinetic and characteristic investigations on the conversion of cellulose to 5-hydroxymethylfurfural in the mixed metal salt system	217
A comparative techno-economic assessment between solar-based hydrogen production by methane pyrolysis and water electrolysis methods	217
Comprehensive analysis of thermal performance & optimization over a dual-PCM ceiling-floor heating/cooling system	214
PCM melting characteristics in a sidewall-heated rectangular cavity with non-uniform longitudinal fins near the bottom	213
Temporal variations and driving mechanisms of carbon and water fluxes in desert photovoltaic ecosystems	212
Effect of green technological innovation and financial development on green energy transition in N-11 countries: Evidence from the novel Method of Moments Quantile Regression	206
A comparative study on the water treatment effects of different advanced oxidation technologies in a water treatment system based on double-sided photovoltaic-thermoelectric generators	203
Corrigendum to “A customized symmetric passivator to improve the efficiency and stability of inorganic CsPbI2Br perovskite solar cells” [Renew. Energy 241 (2025) 122413]	199
Extreme spillovers among green finance, energy, and energy metals markets in China: Evidence under the dilemma of energy transition	197
Extended energy rating of photovoltaic modules by outdoor measurements and uncertainty assessment	189
Wind-induced torsion of parabolic trough collectors in operation	189
3D rotational augmented flow effects on the multidisciplinary optimization of flatback airfoils	185
The effect of turbulent coherent structures in atmospheric flow on wind turbine loads	185
Study on the insulation resistance of proton exchange membrane fuel cell stacks	184
Optimal phasing of tidal stream power around the British Isles and within the English Channel for green ammonia production	182
Modelica based hybrid-dimensional dynamic modeling, multi-objective optimization and thermodynamic analysis of cross-flow SOFC system	182
Bi-level coordinated operation optimization of multi-park integrated energy systems considering categorized demand response and uncertainty: A unified adaptive robust optimization approach	181
Multi-objective optimization of co-located wave-wind farm layouts supported by genetic algorithms and numerical models	180
Boosting wet yeast-based biodiesel production by in-situ transesterification using a novel acid-base bifunctional carbon-based catalyst derived from spent coffee ground and cement residue	179
Measuring the long-term impact of wind, run-of-river, solar renewable energy alternatives on market clearing prices	178
Considerations of passive radiative cooling	177
Construction and analysis of a compound parabolic concentrator to eliminate light escape in the interlayer of solar vacuum tube	173
Multi-objective optimization of regional power generation mix considering both carbon cap-and-trade mechanisms and renewable portfolio standards	171
Selection methodology of representative meteorological days for assessment of renewable energy systems	169
Functional groups anchoring-induced Ni/MoOx-Ov interface on rice husk char for hydrodeoxygenation of bio-guaiacol to BTX at ambient-pressure	169
Design and energy flexibility analysis for building integrated photovoltaics-heat pump combinations in a house	164
Modeling and simulation process for solketal synthesis from glycerol and acetone by catalytic distillation in a modified structure of a divided wall column	162
Structural health monitoring of tendons in a multibody floating offshore wind turbine under varying environmental and operating conditions	162
Editorial Board	157
Modeling and optimization of an integrated multi-generation solar system with variable heat to power ratio for supplying residential and industrial demands	156
Editorial Board	154
LQG control for hydrodynamic compensation on large floating wind turbines	153
High-rate upflow anaerobic sludge blanket bioreactor for the treatment of olive mill effluents: Laboratory and pilot scale systems investigation	152
How do key for the bioenergy industry properties of baled biomass change over two years of storage?	152
Editorial Board	151
The role of limonene in the branching of straight chains in low-octane hydrocarbons	150
Green solvent system for isolation of biopolymers from Mentha arvensis distilled biomass and saccharification to glucose for the production of methyl levulinate	150
Advances in thermal energy storage for renewable energies integration in the energy system	150
Performance assessment of a modified wells turbine using an integrated casing groove and Gurney flap design for wave energy conversion	149
Synthesis, antioxidant properties, and oil solubility of a novel ionic liquid [UIM0Y2][C6H2(OH)3COO] in biodiesel	148
Editorial Board	146
A three-dimensional, analytical wind turbine wake model: Flow acceleration, empirical correlations, and continuity	145
A methodology to estimate the photovoltaic potential on parking spaces and water deposits. The case of the Canary Islands	145
A dynamic simulation platform for fault modelling and characterisation of building integrated photovoltaics	144
Editorial Board	144
Design of a 20 kWth gasification reactor for harnessing energy from rice husks	143
Eco-friendly strategy for the joint valorization of invasive macroalgae and fast-growing wood to produce advanced biofuels	143
Measuring environmental performance of power dispatch influenced by low-carbon approaches	143
Editorial Board	141
Editorial Board	140

Solar rebound effects: Short and long term dynamics	137
Numerical simulation of biogas chemical looping reforming in a dual fluidized bed reactor	137
Numerical simulation of electricity generation potential through five vertical wells at Fengshun geothermal field in China	137
In-situ growth of Ru/RuO2 nanoparticles decorated (La0.6Sr1.4)0.95Mn0.9Ru0.1O4 as a potential electrode for symmetrical solid oxide fuel cells	136
Editorial Board	135
Editorial - RES to drive EVs	135
Physical model test and parametric optimization of a hydroelectric generating system with a coaxial shaft surge tank	135
The Rance tidal power station: Toward a better understanding of sediment dynamics in response to power generation	134
Contribution of green hydrogen vector to guarantee electricity feeding in remote areas- Case study	134
Comparative performance evaluation of modified solar cookers for subtropical climate conditions	133
Viability of renewable energy integration in isolated systems in Brazil – A case study at Trindade Island (Espírito Santo, Brazil)	133
Experimental and numerical study on the preheating process of a lab-scale solar molten salt receiver	132
The new role of sustainable hydropower in flexible energy systems and its technical evolution through innovation and digitalization	131
Thermodynamic analysis of a novel multi-layer packed bed cold energy storage with low exergy loss for liquid air energy storage system	131
Effects of free surface on a flapping-foil based ocean current energy extractor	130
The heterogeneous impacts of climate finance on energy efficiency and renewable energy production in developing countries	130
What does clean energy attract? Evidence from the transfer structure of energy-intensive projects in China	129
Effects of guide vane shape on the performances of pump-turbine: A comparative study in energy storage and power generation	129
Optimization of carbon emission reduction paths in the low-carbon power dispatching process	129
Sustainable renewable energy system selection for self-sufficient households using integrated fermatean neutrosophic fuzzy stratified AHP-MARCOS approach	129
Multi-criteria assessment of food waste and waste paper anaerobic co-digestion: Effects of inoculation ratio, total solids content, and feedstock composition	128
Hydrogen production from energetic poplar and waste sludge by electrohydrogenesis using membraneless microbial electrolysis cells	128
Utilizing electrooxidation for textile effluent wastewater treatment and simultaneous electrocatalytic hydrogen production: Transforming waste into energy and promoting water reuse in a circular econo	128
Nusselt number and friction characteristics of solar air heater roughened with novel twisted V-shaped staggered ribs using liquid crystal thermography	126
In-situ biomethanation of high CO content syngas in agricultural biogas digesters	125
Vibration energy harvesting from an unmanned surface vehicle: Concept design, open sea tests and harvester optimization	125
Accelerating optimal scheduling prediction in power system: A multi-faceted GAN-assisted prediction framework	124
Numerical investigation of the effect of the closure law of wicket gates on the transient characteristics of pump-turbine in pump mode	124
Transesterification of used cooking oil by palm lignocellulosic biomass magnetic biochar catalyst: Optimization and kinetic analysis	124
Thermal performance of heat pipe evacuated tube solar collector integrated with different types of phase change materials at various location	123
An experimental investigation on performance of microencapsulated phase change material slurry in ground heat exchanger	123
Experimental investigation on the influence of phase change material on the output performance of thermoelectric generator	122
Asymmetric effects of commodity and stock market on Chinese green market: Evidence from wavelet-based quantile-on-quantile approach	122
The adoption of Seawater Pump Storage Hydropower Systems increases the share of renewable energy production in Small Island Developing States	122
Effect of different PV modules surface energies and surface types on the particle deposition characteristics and PV efficiency	121
Sono-modified halloysite nanotube with NaAlO2 as novel heterogeneous catalyst for biodiesel production: Optimization via GA_BP neural network	121
A feasibility study of operating a low static pressure head micro pelton turbine based on water hammer phenomenon	121
Sustainable photovoltaic power generation spatial planning through ecosystem service valuation: A case study of the Qinghai-Tibet plateau	121
Catalytic valorization of biomass carbohydrates into levulinic acid/ester by using bifunctional catalysts	121
Performance analysis of a concentrated direct absorption solar collector (DASC) with nanofluids using computational fluid dynamics and discrete ordinates radiation modelling (CFD-DORM)	121
Utmost substance recovery and utilization for integrated technology of air separation unit and liquid air energy storage and its saving benefits	120
Numerical study of the hydrofoil cavitation flow with thermodynamic effects	120
Multi-field coupled modeling of metal hydride hydrogen storage: A resistance atlas for H2 absorption reaction and heat-mass transport	120
Evaluating the pressure fluctuations during load rejection of two pump-turbines in a prototype pumped-storage system by using 1D-3D coupled simulation	119
Economic optima for buffers in direct reduction steelmaking under increasing shares of renewable hydrogen	119
Conventional and advanced PV array configurations to extract maximum power under partial shading conditions: A review	119