It was also an important criterion that the parameters could be handled uniformly between technologies with as little technology-specific and subjective judgements as possible. The parameters are partly similar to those used in published literature (Edenhofer et al., 2011; Kibler and Tullos, 2013 and Evans et al., 2009) and partly defined specifically for our study. Furthermore, the parameters are considered relevant for policy development and implementation (see details in the Sections 1 and 2). The following parameters were selected for comparison