There is increasing demand for the use of alternative renewable energy sources to achieve clean and low-cost electric energy for loads. Wind and solar energies are some of the renewable energy sources which are mostly available in the world. In this study, a hybrid power station has been designed using solar and wind energies.

• This counterintuitive finding reflects two key characteristics about energy markets: the worldwide increase in renewable energy sources whose output is intermittent and variable; and greater market liberalization, which has made the spot pricing of electricity more volatile. The intermittency of renewable energy sources requires backup generation, typically from generators using fossil fuels....

nowadays the position of the renewable energy is so important because of the environment pollution and the limitation of fossil fuels in the world. energy can be generated more and more by the renewable sources, but the fossil fuels are non-renewable. one of the most important renewable sources is the wind energy. the wind energy is an appropriate alternative source of fossil fuel. the replacem...

The study highlights the importance to develop the national economy through assuring energy security. The study aims to analyze how to develop renewable energy sources, determine the main priorities of Ukraine’s national security policy and discover novel ways of assuring energy security due to developing the industry of renewable energy in the light of environmental safety, energy conservation...

Sustainability of current energy policies and their mid-term outlooks are investigated. First, an overview is given about the trend of global energy demand and energy production. The share of energy sources and the geographic distribution of demand are analysed on the basis of the statistics and projections published by major agencies. Sustainability of selected renewable energy sources is then...

Vitrimers are polymeric materials that behave as thermosets at room temperature but, when heated, they exhibit a plastic flow similar to thermoplastics, enabling their reprocessability. A series of new bio-based polyamide-polyamine vitrimers synthetized starting from tris(2-aminoethyl)amine and epoxidized methyl oleate, material can be easily prepared renewable resources obtainable both natural...

Bio-plastics are environment – friendly and biodegradable hence provide an effective way to replace the conventional plastics. In this experiment five different crops were taken then extracted starch from each crop. Starch is used as a source for producing bio-plastics. Bio-plastic generated starches. Sorghum showed maximum production of (369gm). 15% glycerol plasticiser bio-plastics was produc...

Policies to incentivize the adoption of renewable energy sources usually offer little flexibility adapt heterogeneous benefits across locations. We evaluate geographical misallocation solar photovoltaic installations and their relation with uniform nature subsidies. estimate dispersion marginal from production in Germany compute social private optimal reallocations residential keeping total cap...

In the United States, there is no comprehensive energy policy at the federal level. To address issues as diverse as climate change, energy security, and economic development, individual states have increasingly implemented Renewable Portfolio Standards (RPSs), which mandate that utility providers include a specified amount of electricity from renewable energy sources in their total energy portf...