Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. Configuring a certain capacity of energy storage for the power system can effectively improve the reliability of the power supply and the level of wind power consumption. This paper takes pumped storage investment cost and wind power consumption demand as the optimization goal, realizes the coordinated operation of pumped storage units and thermal power units, and considers the uncertainty of wind power and load, the multi-timescale characteristics of different types of units and load demand response, and establishes ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. Environmental conditions influence the development of solar cell technologies; variables such as solar irradiation, wind speed, and ambient temperature influence the operating temperature of the cells, which affect their electrical performance; however, this effect may differ according to the solar technology. In the case of Dye-Sensitized Solar Cells (DSSCs), it is necessary to generate more studies to evaluate their behavior in different types of climates under real conditions, as it is known that, in comparison wit ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. Energy storage plays a crucial role in the safe and stable operation of power systems under high renewable energy penetration. Unlike conventional energy sources, the special physical characteristics of battery energy storage make it challenging to apply in practice. Some countries have been developing battery energy storage for a long time, and it is worthwhile to learn from the policies and market mechanisms for the development of battery energy storage to clear the obstacles for large-scale development and particip ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. To solve the problem of energy loss caused by the use of conventional ejector with fixed geometry parameters when releasing energy under sliding pressure conditions in compressed air energy storage (CAES) system, a fully automatic ejector capable of adjusting key geometric parameters to maintain the maximum ejection coefficient by an automatic control device according to the running parameters is proposed in this paper. By establishing a thermodynamic model of a typical CAES system coupled with a fully automatic eject ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. The use of biodiesel can reduce dependence on diesel, and the compression ignition (CI) engine's performance with biodiesel is substantially low but could be improved by emulsifying nano-additives. Biodiesel production and performance in CI engines using a homogeneous catalyst is less efficient, expensive, and time-consuming. In this research article, magnesium-doped calcium oxide (Mg–CaO), a novel heterogeneous nanocatalyst, was synthesized and then used to generate biodiesel from Sapindus trifoliatus seed oil. The c ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. This paper took hydrogen transportation as a breakthrough to make a comprehensive study on the economic assessments of hydrogen delivery pathways, so as to promote the low-cost and large-scale hydrogen energy development. A specific transportation model for gas-hydrogen trailers, liquid-hydrogen tank trucks, and hydrogen pipelines with various technical levels was developed to explore the cost reduction pathways. To verify the feasibility of the model, a case study was conducted in Shanghai, China, to obtain more real ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. The hybrid drive wind turbine (WT) can be friendly connected to the power grid by using a speed regulating differential mechanism (SRDM) instead of partially or fully rated converters, which has been considered as a promising solution for the stable consumption of large-scale wind power generation. To further improve the on-grid performance of hybrid drive WTs, this paper develops a multi-source power generation scheme, in which a hydrogen storage system (HSS) is integrated for mitigating the wind power generation int ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. Biofuels are considered as the alternative to petrofuels in Compression Ignition (CI) engines. However, investigations on combustion exergy, exergetic life cycle, and environmental impacts are imperative for understanding the sustainability of biofuel in engine applications. In the present study, the sustainability of Waste Cooking Oil (WCO) microemulsion biofuel in CI engines is validated by evaluating the life cycle performances, emission characteristics, and cogeneration potential. The life cycle assessment (LCA) a ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. A key strategy for lowering emissions and reducing the effects of climate change is to execute energy-saving retrofits in residential buildings. Despite extensive research on different retrofit pathways for building energy efficiency, the current retrofitting of the aged housing stock in China is still constrained by several factors, including occupant willingness, government financial situation, and low energy prices, so retrofitting projects are almost entirely government-led and most of the solutions of existing st ..read more

Journal of Renewable and Sustainable Energy, Volume 15, Issue 2, March 2023. With the development of electric vehicles (EVs), a large number of electric vehicle charging stations (CSs) have been rapidly rolled out to meet the charging demand of EVs. However, high construction costs and long payback periods motivate investigations to improve the profits of CSs. Considering the profit improvement of CSs and carbon emission reductions, this paper first proposes a carbon revenue model for CSs to participate in the carbon trading market. A charging price strategy is proposed to share the carbon rev ..read more