The exploitation of renewable energy sources has assumed a significant role, especially in an integrated vision of problems concerning energy policies, The 2009/28/EC Directive of the European Parliament and Council has indicated ambitious energy and climate change objectives for 2020 (according to the so-called “EU2020 Strategy”): greenhouse gas emissions reduction for 20%, renewable energy in...

Sustainable energy sources such as renewable energies are replacing dirty sources of energy in order to address the environmental challenges of the century. In order to operate data centres with renewable energies we have to mitigate their volatile and variable nature. In this paper, we present the Energy Adaptive Software Controller (EASC), a generic software controller and interface that deve...

In many countries, renewable energy is highly prioritized, not only as a means of addressing environmental and energy security issues, but also as a potentially significant source of new employment, especially in rural areas throughout the OECD. One of the most important questions for policymakers is whether renewable energy can assist the development of rural economies. In response, this brief...

With the rapid depletion of fossil fuel reserves, it is feared that the world will soon run out of its energy resources. This is a matter of concern for developing countries whose economy heavily leans on its use of energy. Under the circumstances it is highly desirable that renewable energy resources should be utilized with maximum conversion efficiency to cope with the ever increasing energy ...

Amyris is a renewable products company providing sustainable alternatives to a broad range of petroleumsourced products. Amyris applies its industrial synthetic biology platform to convert plant sugars into a variety of molecules flexible building blocks that can be used in a wide range of products. Amyris’s initial portfolio of commercial products is based on Biofene, Amyris’s brand of farnese...

Renewable electricity policies promote investment in renewable electricity generators and have become increasingly common around the world. Because of intermittency and the composition of other generators in the power system, the value of certain renewables—particularly wind and solar—varies across locations and technologies. This paper investigates the implications of this heterogeneity for th...

An increasing number of private households are becoming producers of renewable energy. From an economic perspective it is beneficial to utilize this energy both locally and promptly. This does require the ability to be able to deal with local excess production at short notice using, for example, an electronic trading platform. In this paper we describe a future energy scenario demonstrating tec...

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fixed feed-in tariff An offer by government or a utility to purchase electricity from renewables producers at a fixed price, regardless of the producers’ costs of production. green (renewables) certificate A certificate, provided by a regulator to renewables producers for specified units of their electricity output; can be traded to other electricity producers who need it to meet their obligati...

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...