OOIR: Observatory of International Research

Papers

(The H4-Index of Renewable Energy is 108. 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 2022-06-01 to 2026-06-01.)

Article	Citations
Editorial Board	539
Editorial Board	350
Lab- and pilot-scale anaerobic digestion of municipal bio-waste and potential of digestate for biogas upgrading sustained by microbial analysis	348
Highly fluorinated poly arylene ethers containing sulfonated naphthol pendants with improved proton conductivity as a polymer electrolyte for proton exchange membrane fuel cells	321
Hybrid wind-solar energy potential modeling using ERA5 and solar irradiation data in google Earth Engine	312
Parametric study of a novel air-based photovoltaic-thermal collector with a transverse triangular-shaped block	297
Pivotal MoOx-decorated Ru/C with a monomeric structure boosts the room temperature and low-pressure hydrogenation of levulinic acid to γ−valerolactone	292
Increasing the capacity of pseudocapacitive WO3 auxiliary electrode for enhanced two-step decoupled acid water electrolysis	290
Evaluation and heat transfer augmentation of a PV/T unit through parametric baffle installment: Data-driven modeling and swarm implementation	282
The balance issue of the proportion between new energy and traditional thermal power: An important issue under today's low-carbon goal in developing countries	262
Performance evaluation of a geothermal and solar-based multigeneration system and comparison with alternative case studies: Energy, exergy, and exergoeconomic aspects	252
A feasibility study of operating a low static pressure head micro pelton turbine based on water hammer phenomenon	242
A granular multicriteria group decision making for renewable energy planning problems	240
Solar drying of apple and orange waste: Evaluation of a new thermodynamic approach, and characterization analysis	239
Improving the performance of solar photovoltaic thermal cells using jet impingement and phase change materials cooling technology	232
A novel oscillatory thermal response test method for efficient characterization of ground thermal properties: Methodology and data analysis	230
New trilobular geometry using advanced materials for experimentally validated enhanced heat transfer in shallow geothermal applications	229
Numerical simulation of electricity generation potential through five vertical wells at Fengshun geothermal field in China	210
Editorial Board	207
Effect of semi-transparent a-Si PV glazing within double-skin façades on visual and energy performances under the UK climate condition	205
Modelled annual thermal performance of a 50MWth refractory-lined particle-laden solar receiver operating above 1000°C	202
Parametric optimization of a novel solar concentrating photovoltaic-near field thermophotovoltaic hybrid system based on cascade utilization of full-spectrum solar energy	202
Unlocking the potentials using humidifier-dehumidifier for proton exchange membrane fuel cell waste heat recovery	199
The Spatiotemporal exploration of intercity transport energy efficiency in the mainland of China on the basis of improved stochastic frontier modelling	197
Energy, exergy, economic and environmental assessment of solar photovoltaic direct-drive refrigeration system for electronic device cooling	196

Enhancing the performance of a photovoltaic thermal system with phase change materials: Predictive modelling and evaluation using neural networks	195
A multi-parameter estimation of layered rock-soil thermal properties of borehole heat exchanger in a stratified subsurface	191
Dispersion characteristics of large-scale liquid hydrogen spills in a real-world liquid hydrogen refueling station with various releasing and environmental conditions	180
Assessing the prospective environmental performance of hydrogen from high-temperature electrolysis coupled with concentrated solar power	172
Co-pyrolysis and co-combustion of orange peel and biomass blends: Kinetics, thermodynamic, and ANN application	170
Economic and sustainability prospects for wet waste valorization: The case for sustainable aviation fuel from arrested anaerobic digestion	170
Revolutionizing biodiesel with novel MWCNT-COOH@TiO2-ZnO nanocatalysts for enhanced transesterification and tribocorrosion resistance	169
Air supply subsystem efficiency optimization for fuel cell power system with layered control method	169
Pyramid floating solar still with enhanced condensation surfaces operating under actual weather conditions	167
Research progress in SO2 depolarized electrolysis at INET	167
Concentration performance of solar collector integrated compound parabolic concentrator and flat microchannel tube with tracking system	163
Assessing a sustainable aviation fuel supply chain from winter canola and its carbon intensity considering feedstock yield variations	160
Short-term joint scheduling model of hydro-wind-PV-storage dominated by hydropower considering the cascade output matching and decomposition strategies	160
Preparation and performance study of highly transparent SiO2 aerogel for solar high-temperature thermal utilization	156
Editorial Board	156
WITHDRAWN: ANN and ML Based Modeling of InGaN/GaN p-i-n Solar Cells for Concentrator Photovoltaics	156
Mitigation of severe false data injection attacks (FDIAs) in marine current turbine (MCT) type 4 synchronous generator renewable energy using promoted backstepping method	155
Research on productivity of stimulated natural gas hydrate reservoir	155
Performance of a sedimentation tank for standing column wells coupled with geothermal heat pump systems	155
Wind tunnel investigation of heliostat field wind loads and load reduction measures	154
Parametric analysis on performances of the pipe-encapsulated PCM (PenPCM) wall system coupled with gravity heat-pipe and nocturnal radiant cooler	154
Global geothermal electricity potentials: A technical, economic, and thermal renewability assessment	153
An adaptive pricing mechanism framework for post-auction in the local electricity markets integrating a higher share of renewables	152
Regional assessment of extreme tropical cyclone waves for marine renewable energy development	151
Enhancing semi-continuous anaerobic digestion efficiency with nanobubble water: thermophysical properties optimization and microbial regulation	151
A transient heat losses model for two-tank storage systems with molten salts	150
A comparative study on the performance of ice-source heat pumps versus other heat source heat pumps: A case study in the UK	150
Relationships between remarkable points in photovoltaic I–V curves	149
The role of limonene in the branching of straight chains in low-octane hydrocarbons	149
Experimental and numerical investigations on operation characteristics of seasonal borehole underground thermal energy storage	149
Stepped pyrolysis: A novel approach for enhanced adsorbency and carbon in Pigeon pea stalk char	148
A new optimization approach considering demand response management and multistage energy storage: A novel perspective for Fujian Province	146
Tailoring CoAl2O4 inversion degree-driven photocarrier separation and injection for photoelectrochemical water splitting	146
Modeling and stability investigation on the governor-turbine-hydraulic system with a ceiling-sloping tail tunnel	146
Traveling wave turbine - An internal flow energy absorption mode based on the traveling wave motion	146
Modeling and interpretation of geomagnetic data related to geothermal sources, Northwest of Delijan	144
Assessment of regional-scale geothermal production based on a hybrid deep learning model: A case study of the southern Songliao Basin, China	144
Experimental study on effects of compressor speed on a heat pump dryer system with auxiliary solar source	143
Validations of a double U-tube borehole model and a seasonal solar thermal energy storage system model	142
Advanced viscosity prediction in hydrogen storage systems: emphasizing the role of cushion gases in pure and mixture forms	141
Effect of CO2 dilution on thermal characteristics and chemiluminescence for CH4/O2 diffusion flame: A numerical simulation based on detailed mechanism	141
Insight into physicochemical properties and carbon-silicon interaction mechanisms of biochar during gasification	141
Comparative study of grass pyrolysis over regenerated catalysts: Tyre ash, zeolite, and nickel-supported ash and zeolite	140
SPFNet2: A lightweight solar panel fault detection framework using parallel U-Net and MobileNetV3Large	140
Flash evaporation strategy of organic Rankine cycle for geothermal power performance enhancement: A case study	139
Effect of lateral spacing on output power of offshore wind turbines in different turbulence environments	138
Low frequency surge motion and inter-spacing distances between turbines in offshore wind farms	138
Design and optimization of a novel phase change photovoltaic thermal utilization structure for building envelope	137
The theoretical predicting models of efficiency curves for pump and turbine modes	135
Optimizing cooling, power, freshwater, and hydrogen production in a dual-fuel gas turbine cycle: A multi-layered approach of waste heat recovery with biomass and methane integration	134

Assessment of solar energy resource potential in the western region of Jilin Province: A multi-dimensional framework based on availability, stability and concentration	134
Synthesis and evaluation of bifunctional polymeric agent for improving cold flow properties and oxidation stability of diesel-biodiesel blends	133
Design and performance estimation of a novel solar multiplate mirror concentration PVT system based on nanofluid spectral filter	132
A novel vortex-based velocity sampling method for the actuator-line modeling of floating offshore wind turbines in windmill state	132
Barriers analysis to Chinese waste photovoltaic module recycling under the background of "double carbon"	132
A real options approach to renewable energy module end-of-life decisions under multiple uncertainties: Application to PV and wind in China	131
Integration of dynamic insulation and dynamic phase change materials systems for residential building envelopes	128
Study on photothermal transmission and anaerobic digestion characteristics of reactor with folding plates by direct solar radiation	128
Experimental-data-based, easy-to-use product gas composition prediction of a commercial open-top gasifier based on commercially used properties of softwood chips	128
Bidirectional vibration energy harvesting and sensing system with biomimetic petal architecture	127
International trade of green hydrogen, ammonia and methanol: Opportunities of China's subregions	126
Energetic, economic, environmental and climatic analysis of a solar combisystem for different consumption usages with PSI method ranking	126
Role of foreign direct investment and economic growth in renewable energy development	123
Short-term wind power forecasting in complex terrain based on spatiotemporal enhanced deep correction network	122
Actuator fault tolerant offshore wind turbine load mitigation control	121
Investigation into the physicochemical properties of three types of biomass-derived soot	120
Modeling of the evolution of the porous structure during a physical activation process for the production of activated biocarbon: A novel low conversion approach	118
Experimental study of floating wind turbine control on a TetraSub floater with tower velocity feedback gain	118
Optimization of hydrogen recirculation ejector for proton-exchange membrane fuel cells (PEMFC) systems considering non-equilibrium condensation	116
Performance assessment of a Triple Coaxial-Cylinder Wave-Energy Converter (TCWEC)	115
Biosynthesis of biolubricant catalyzed by lipase B from Candida antarctica immobilized on nanocomposite of cashew apple bagasse lignin	114
Enhancing methanogenic propionate degradation by resuscitation-promoting factors and pyruvate through strengthening syntrophic interactions in microbial community	114
Uncertainty quantification analysis in the blade element momentum method	113
Integration of renewable energy, environmental policy stringency, and climate technologies in realizing environmental sustainability: Evidence from OECD countries	113
Influence of water hammer effect on low frequency oscillation of grid-connected hydropower station system	113
Application of iron oxides modified volcanic rock in continuous phenol wastewater anaerobic treatment: Performance and underlying mechanisms	113
Cooperative economic dispatch of EV-HV coupled electric-hydrogen integrated energy system considering V2G response and carbon trading	112
Standardized benchmark of historical compound wind and solar energy droughts across the Continental United States	112
Theoretical models for predicting ventilation performance of vertical solar chimneys in tunnels	111
Optimization-driven anaerobic digestion of rice straw and potato peel waste for enhanced Biohythane production: A synergistic approach towards lignocellulosic biomass conversion to clean energy	110
Strategic bidding for a hydro-wind-photovoltaic hybrid system considering the profit beyond forecast time	110
Financing renewable energy generation in SSA: Does financial integration matter?	109
Site adaptation of global horizontal irradiance from the Copernicus Atmospheric Monitoring Service for radiation using supervised machine learning techniques	109