Energy crisis and global warming due to fossil fuel implementation in the energy production sector and in the transportation sector have stimulated global trends to employ the electric vehicles (EVs) in the transportation sector and renewable energy sources (RESs) in the power generation. Coordinated charging of EVs can bring some benefi ts by itself such as voltage and frequency regulation, spinning reserve, load leveling, peak shaving, RESs support, GHG emission saving and so on. But implementation of this scenario with uncoordinated EV charging which can impose a huge amount of excess load on the grid. In this regard, EVs coordinated energy scheduling is inevitable. This paper comprehensively reviewed the pros and cons of integrating EVs to the grid and recent investigations in EV energy scheduling especially ones that focused on stochastic energy scheduling. Moreover, with knowing this fact that, microgrid with the presence of different distributed generation (DG) such as RESs and a diverse storage system such as EVs would have an important role in the future smart grid, thus, this paper aims to illustrate further research opportunities in this particular fi eld. Also, different types of uncertain variables in recent studies and mathematical methods for optimizing the relevant objective functions of EVs charging are reviewed inclusively. Finally, future trends and investigation occasions in this fi eld of study are discussed.

Expanding the use of renewable energy is a matter of concern in many countries. Many Japanese local municipalities are attempting to promote business creation using renewable energy as an opportunity for regional revitalization based on the policy of the Japanese government. Renewable energy makes significant contributions to the region in terms of energy security, stable energy supply, and job creation. However, the most important contribution is enhancing residents’ attachment to their community and supporting actions that appeal to the community through renewable energy utilization. Residents should actively participate in regional revitalization, which leads to sustainable prosperity of the region. However, the current measures of local municipalities seem to be lacking such a viewpoint. This study aims to analyse the environmental and economic aspects as well as the social acceptance of establishing a bathing business that utilizes woody biomass as its heat source. This study also discussed how the generation of heat from woody biomass contributes to regional revitalization. The case study area was Kobe and Mt. Rokko, Japan. First, heat production and utilization was assumed for the forest resources in Mt. Rokko, and the annual biomass energy production potential was estimated. The annual costs of lumber cutting, transportation, and chipping, and the annual CO2 reduction by substituting bunker A with woody biomass for heat production were also estimated. A questionnaire survey was conducted to determine community awareness of energy production using woody biomass from Mt. Rokko. Principal component analysis, contingent valuation method, and path analysis were used to quantify respondents’ awareness.

The use of renewable energies is inevitable due to the limitations of fossil fuels, pollution, and the global increase in energy consumption. Renewable energies are various, so selection and investment in the best option in each region are complicated and depend on multiple parameters. For this reason, this study has used Analytical Hierarchal Process (AHP) to prioritize renewable energy sources in Iran's main ports (located in the Caspian Sea, Oman sea, and the Persian Gulf). The AHP is among the most widely used methods in multi-criteria decision-making in many fields and can include different and contradictory criteria. Renewable energies, including solar, wind, wave, and current, have been analyzed in the main ports' area (5 km radius in sea and port hinterland). The results show solar (photovoltaic) and wave energies are the first and second priorities in all southern ports except Imam Khomeini Port. Imam Khomeini Port is the only port where the current energy is unignorable. In the northern ports, wind energy is the primary option for investment. Wave energy can be exploited only in the Shahid Beheshti Port of Chabahar, located on the Oman Sea shores and directly connected to the open sea. In the ports of Khuzestan province, the photovoltaic power potential is lower than in other southern ports despite the very high solar direct normal irradiation.

Energy, a necessary component of the invention, has negative externalities on the health of humans and the environment due to its production and use, which hinders national growth. For this reason, countries should act with two main motivations when choosing energy sources. The first should be economic development by considering the increase in production and efficiency supplied by the source of energy, and the second should be to choose energy resources that will promote the welfare of the people. In this study, conventional and renewable energy sources for the long-term growth of India's energy sector are assessed from a variety of viewpoints, including technical, economic, environmental, and social criteria. In the choice model, the thermal, solar, wind, biomass, and hydro energy options are employed as alternatives. In this study, suitable energy sources are selected for India with the help of the Entropy method and the WASPAS (Weighted Aggregated Sum Product Assessment) method. And, the relevance of environmental, technical, social, and economic aspects of renewable sources of energy is assessed and in the second step, a proposal has been made about which renewable energy source can be suitable to meet the energy requirement in India through the WASPAS technique. From the results obtained from the WASPAS method, it was found that the renewable energy resources suitable for investment in India are hydro, geothermal, wind, biomass and solar energy respectively.

In this research, technical and economic analysis of the use of storage devices in the hybrid system of wind and solar is performed with the aim of providing a maximum electrical load of residential buildings. To this aim, two scenarios of grid-connected and off-grid system have been studied. two parameters of high reliability and cost per production capacity were used. According to these two parameters, due to the low cost of grid energy and the high cost of purchasing the second scenario cell was selected with the grid-connected system approach. Based on this system, the final generation that has a surplus of production sells the energy to the network and uses the network to supply the load when there is a lack of power to supply the load. According to the cases mentioned in the second scenario, more than 50% of the requested load is supplied by the photovoltaic cell, which indicates the high potential of the study area. For the selected system, the return on investment was 7.53 years, considering the cost of energy is 0.13 $/kWh