This work is about an appropriate choice of a renewable energy source between a wind turbine and a solar power plant. The selected renewable energy source should supply electricity to a site, part of the University Alioune Diop of Bambey, in Ngoundiane, Thies region. The work is based on analysis of meteorological parameters (wind speed, ambient temperature, solar irradiation). According to thi...

Motivation: In our previous approach, we proposed a hybrid method for protein secondary structure prediction, called HYPROSP, which combined our proposed knowledge-based prediction algorithm PROSP and PSIPRED. The knowledge base constructed for PROSP contains small peptides together with their secondary structural information. The hybrid strategy of HYPROSP uses a global quantitative measure, m...

Compared to 2011 the global emissions of CO2 – supposedly the main cause of global warming – increased only by 1.1 % in 2012 (3% in 2011) but still reached an all-time high of 34.5 billion tons in 2012 [2]. Nevertheless the growth of renewable generation in the electricity system is remarkable. The share of renewable energy sources (RES) such as wind, PV (Solar) and Bio fuels is increasing with...

Electricity generated from renewable sources, such as solar and wind power, offers enormous potential for meeting future energy demands. But access to solar and wind energy is intermittent, whereas electricity must be reliably available for 24 hours a day: Even second-to-second fluctuations can cause major disruptions that cost tens of billions of dollars annually. Electrical energy storage dev...

Hybrid renewable energy systems (HRES) have been introduced to overcome intermittent nature of single-source renewable energy generation. In order to utilize HRES optimally, two issues must be considered: optimal sizing and optimal operation. The first issue has been considered vastly in several articles but the second one needs more attention and work. The performance of hybrid renewable energ...

Salinity gradient energy, which is also known as Blue energy, is a renewable energy form that can be extracted from the mixing of two solutions with different salinities. About 80% of the current global electricity demand could potentially be covered by this energy source. Among several energy extraction technologie...

In recent years, energy predicament and environmental problems in the world caused by fossil fuels combustion make us to pay serious attention to optimizing energy consumption and using renewable energies. One of the potential renewable energies which can be helpful in electricity generation is harness wind and water energy or using these two kinds of energy simultaneously. In this study, to pr...

This paper investigates three models to implement Tradable Green Certificates (TGC) system with aid of game theory approach. In particular, the competition between thermal and renewable power plants is formulated in three models: namely cooperative, Nash and Stackelberg game models. The price of TGC is assumed to be determined by the legislative body (government) which is fixed. Numerical examp...

Some studies of renewable portfolio standards find that regulations increase generation costs; others find that reduced demand for nonrenewable energy sources lowers natural gas prices and that electricity prices follow. This paper presents reasoning for why these predictions can vary in the direction as well as in the magnitude of their effects. The driving factors are the relative elasticitie...

Since the beginning of the twenty-first century the limitations of the fossil age with regard to the continuing growth of energy demand, the peaking mining rate of oil, the growing impact of CO2 emissions on the environment and the dependency of the economy in the industrialized world on the availability of fossil fuels became very obvious. A major change in the energy economy from fossil energ...