CENTERIS 2018 - Conference on ENTERprise Information Systems / ProjMAN 2018 - International Conference on Project MANagement / HCIST 2018 - International Conference on Health and Social Care Information Systems and Technologies Knowledge transfer between projects – What do contextual elements have to do with this? Anandasivakumar Ekambaram*, Andreas Økland SINTEF, S.P. Andersens veg 5, 7031 Trondheim, Norway Abstract This paper is about dealing with contextual elements, when it comes to replicating lessons learned (transferring knowledge) on energy efficient solutions in building renovation projects. The aim of this research is to make sure contextual elements of knowledge are adequately addressed in the knowledge transferring process, since applying energy efficient solutions and best practices have varying focus from context to context. This conceptual paper presents initial research ideas, basic theories and an overall model that will be used later to address the contextual issues in the knowledge transferring process. This paper is connected to an EU-project called "Rezbuild", which focuses on developing decision and planning support for accomplishing near zero-emission in renovation/refurbishment of dwellings. Keywords: Lessons learned; Knowledge transfer; Building renovation; Construction; Contextual elements 1. Introduction Sustainability and energy efficiency are topics that have gained much attention recently in many industries, including building and construction. Referring to previous studies, Johansson et al. [1] say that buildings are responsible for 30-40% of global carbon emissions and that there is hence a significant improvement potential for energy saving in the building sector. In addition to the existing buildings, there is new construction. New construction efforts are expected to increase the current stock at a rate of 1% per year [2] [3]. In this context, what will be the status of building renovation? In this regard, it is relevant to refer a description provided by European Commission ([4], page 11): * Corresponding author. Tel.: +47 404 78 174 E-mail address: siva@sintef.no.