The world energy crisis and increased greenhouse gas emissions have driven the search for alternative and environmentally friendly renewable energy sources. According to life cycle analysis, microalgae biofuel is identified as one of the major renewable energy sources for sustainable development, with potential to replace the fossil-based fuels. Microalgae biofuel was devoid of the major drawba...

The probably biggest challenge for climate change mitigation is to find a secure low-carbon energy supply, which especially is difficult as the supply of renewable sources underlies strong volatility and storage possibilities are limited. We therefore consider the energy sector of a small country that optimizes a portfolio consisting of fossil and/or renewable energy to cover a given energy dem...

Many agrofood industries produce huge amount of waste in a form of biomass as a byproduct. Irregular disposal of this waste can cause a serious harm to the environment. However, such waste has received much attention as a renewable energy source. Recently, protecting the environment through a safe disposal of waste has gained much attention in order to guarantee a sustainable environment and su...

Wind power has been widely considered in recent years as an available and a clean renewable energy source. The cost of wind energy production is currently the main issue, and increasing the size of wind turbines can reduce wind energy production costs. Hence, megawatt wind turbines are being rapidly developed in recent years. In this paper, an aerodynamic analysis of the NREL 5MW turbine is...

In Germany, key players and SMEs in the market for wind, solar and biomass energy production have demanded a need for an universal IT service platform to enable the offering of standardized high quality services for technical operation and maintenance of renewable energy power plants. To proceed towards this goal, a comprehensive data model and a technical systems integration architecture deriv...

Renewable energy has attracted a lot of interest due to the limited supply of coal and oil and the environmental concern of carbon dioxide (CO2) emission. There are many different forms of renewable (green) energy including: solar, wind, geothermal, biomass, and so on. Among them, solar energy is the fastest-growing segment. Increasing manufacturing capacity and decreasing product costs have le...

This study investigates the causal relationship between clean and non-clean energy consumption and economic growth in Brazil over the period of 1980–2009. Clean energy consumption at aggregated level of total renewable energy consumption and disaggregated levels of hydroelectric, new renewables, and nuclear energy consumption are tested within a production function framework. A cointegration te...

Due to low energy price, economic optimization of consumption has no justification for users in Iran. Nowadays, the issue of ending fossil fuels, production of greenhouse gases and the main role of building in consumption of considerable amount of energy has drawn the focus of global researches to a new concept called net zero energy building. In this study, modeling, simulation and energy anal...