Subsurface structure and fluid flow analysis using geophysical methods in geothermal manifestation area of Paguyangan, Brebes, Central Java| Potential effect and analysis of high residential solar photovoltaic (PV) systems penetration to an electric distribution utility (DU)| Production of solid fuel by torrefaction using coconut leaves as renewable biomass| Performance evaluation of various phase change materials for thermal energy storage of a solar cooker via numerical simulation| Evaluation of wind potential for an optimum choice of wind turbine generator on the sites of Lome, Accra and Cotonou located in the Gulf of Guinea| A novel global MPP tracking of photovoltaic system based on whale optimization algorithm| Optimal operation of micro-grids considering the uncertainties of demand and renewable energy resources generation| The effectiveness of new solar photovoltaic system with supercapacitor for rural areas| The temperature profile for the innovative design of the perforated fin