Green Web Engineering - Measurements and Findings

Abstract

The power consumption of Information and Communication Technology (ICT) is still increasing. In order to handle this problem, we can hereby distinguish between two directions: Green IT and Green by IT. Green IT means, how ICT itself can be more energy efficient. Green by IT means how we can improve energy efficiency in other fields with the help of ICT. In our paper we describe an approach regarding Green IT: How software and especially websites can be improved on the server side regarding their energy consumption. For example, caching and compression technologies, as well as decreased sizes of pictures can significantly reduce the network traffic. Here we give some suggestions and we present concrete measurement results, which show the differences in the induced energy consumption.