In this chapter we introduce the fundamental concepts behind the Green Function Theory. We start from a description of the second quantization method and then, after introducing the ensemble average of an operator, we define the main object of the theory, the Green function. Further on, after obtaining the equation of motion for the Green function, we introduce the self-energy operator and we d...

Cloud Computing (CC) has been recognized and gained significant importance as an approach that can be used to save the energy of resources being used by organizations. CC is crucial in virtualization; that is helpful to reduce the use of the number of power consuming servers. Virtualization itself is being green as it is energy saving, cost effective and resource saving. For the use of resource...

The paper focuses on the forecasting models of green energy power systems and loads. Since electric energy cannot be stored efficiently in large quantities, accurate tracking of the energy generation in conjunction with the consumer requirements can lead to the optimization of energy costs in the context of the liberalization of the electric energy market and the increased usage of the alternat...

We assessed the total energy required to manufacture, install and maintain an extensive, sedumplanted green roof over its assumed life of 20 years in the Mid-Atlantic region of the U.S. using the method of emergy analysis. We estimated its environmental benefits as the sum of summer electricity savings due to cooler building temperatures, primary production of biomass and reduction in intensity...

The Green IT can minimize the green house gas emission if steps are taken to reduce energy consumption at end user level i.e., PC’s, Laptops, handheld devices etc. People need to be educated of the fact how energy can be saved while using IT devices. Likewise initiatives at the network and data center level have been taken by the major companies of IT equipments. In our work we perform a compar...

This article analyzes Green Jobs (GJs) in the energy sector. GJs are naturally created processes related to implementation of Sustainable Development Goals (SDGs); this is especially visible 7th and 8th SDGs. There currently a green transition from fossil fuels renewable sources sector, mainly technological change also influences GJ creation. Despite this, there research gap self-employment def...

The purpose of this study is to analyze Green IT industry in major developed countries and to suggest overall directions for IT-Energy convergence industry. Recently, IT industry is pointed out as a problem such as environmental pollution, energy exhaustion, and high energy consumption. Therefore, Green IT gets focused which concerns as solution of these problems. However, since it is a beginni...