Different first-principles methods have been developed in the recent decades to study the electronic-structure of materials both in the ground and in the excited state. These approaches range from Density-Functional Theory, via time-dependent density-functional theory, Many-Body Perturbation theory (MBPT), quantum chemistry methods (coupled-cluster an Moeller-Plesset perturbation theory) all the way to LDA+U and dynamical mean field theory. Such approaches give access to a wealth of quantities directly or indirectly linked to physical observables (hardness, color, electrical and thermal conductivity, optoelectronic properties, …) thus providing an important complement to experimental measurements of both molecular and extended systems. The search for novel functional materials and ever increasing sophistication in spectroscopic measurement techniques require increasingly accurate and efficient computational methods to deal with a growing class of complex materials. The development, testing and use of modern electronic-structure methods are thus a strategic field of condensed matter physics. The total energy conference is an important annual event where the world-wide leading experts in the field meet and discuss the most recent advances.This workshop is a biennial event part of one of the longest-running electronic-structure conference series worldwide: the “Total Energy and Force Methods” workshops/conferences, started in 1984. A major workshop is held biennially at ICTP in Trieste, during odd-numbered years; an alternate workshop (often referred as “mini”, but hosting typically 100+ participants) is held on even-numbered years, each time in a different location. The previous most recent workshops took place in Madrid (2000), Tenerife (2002), Paris (2004), Cambridge (2006), Bonn (2008), Shanghai (2010), Barcelona (2012), and Lausanne (2014). The 2016 edition is planned to be hosted by Luxembourg. The conference language is English.