A new generator portfolio planning model is described that is capable of quantifying the carbon emissions associated with systems that include very high penetrations of variable renewables. The model combines a deterministic renewable portfolio planning module with a Monte Carlo simulation of...

In recent years, wind energy utilization has become increasingly attractive on economic grounds. Wind turbines for electricity generation employ a proven technology, supply energy on a reliable and sustainable basis, and at good, windy sites may even be competitive with conventional sources of...

With a strong industrial base and successful commercialisation of technologies in renewable energy, India is in a position today to offer state-of-the-art technology to other developing countries and is poised to play a leading role in the global movement towards sustainable energy development....

This paper investigates the importance of implementing adequate locational signals and their possible effects on the development of renewable energy sources. In particular, the paper investigates a potential conflict in the British electricity system between the introduction of more efficient...

We analyse the implementation of the finite element method to simulate the structural behaviour of the blade-wagons of variable-geometry oval-trajectory (VGOT) Darrieus wind turbines. The key feature of a VGOT machine is that each blade, instead of rotating around a central vertical axis, slides...

Climate change, dwindling reserves of fossil fuels and shortage of electricity have prompted the government to give an impetus to renewable energy sources. Wind energy, with an average growth rate of 30%, is the fastest growing source of renewable energy in the world. India has a potential...

With rapid population growth and increase in industrial activities, more energy is consumed, resulting in environmental pollution and economic difficulties. Therefore, the need for utilising renewable energy resources has emerged. Although Jordan does not have adequate fuel supplies (90% of its...

The windmill efficiency, also designated as the power coefficient, is defined as the ratio of the actual power output to the power present in the free stream of a fluid flowing through the same cross-sectional area. There are remarks in the literature to the effect that the power coefficient of...

Life Cycle Assessment (LCA) is an instrument to quantify environmental impacts of the entire energy supply chain. According to the LCA, an appropriate indicator system should comprise all steps of a system's life cycle: production, operational and disposal processes ("cradle-to-grave")....

We present the actual state of development of a non-conventional new vertical-axis wind turbine. The concepts introduced here involve the constructive aspects of variable-geometry oval-trajectory (VGOT) Darrieus wind turbines. The key feature of a VGOT machine is that each blade slides over...