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Clean power production, buildings, and transportation are key areas for climate change mitigation. Their tighter integration decreases not only the emissions, but also the energy consumption of buildings and transportation.Energy integration and interactions between buildings and vehicles are dependent on the type of building, vehicle, and renewable energy system, as well as the local climatic conditions. The current academic literature does not provide a systematic analysis of this topic. In the study, different energy management systems and advanced energy control strategies have been formulated to study such interactions both from a building and a vehicle perspective. Furthermore, technical solutions have been systematically reviewed in terms of the enhancement of energy interaction capabilities, in particular from the standpoint of renewable energy systems, energy/fuel charging facilities, and control strategies. Assessment criteria employed in the review of solutions include grid interaction, annual operational cost, annual net CO2 emissions, and annual matching capability. The literature review identifies several technical challenges that need further consideration such as capacity expansion and power fluctuation of the electric grid, low efficiency of heat recovered from electricity generation, and depreciation of vehicles. The future outlook and potential for the energy interaction networks between buildings and vehicles have also been presented.

The continuous and rapid development of energy technology challenges the scientific community to ponder the long-term energy evolution from the perspective of sustainable energy transition.We state that one of the key challenges for the new (post-fossil) energy era is to guarantee to all energy users an access to adequate resources of energy everywhere and at any moment of time.To crystallize the key ideas of such a pervasive energy supply chain into a single concept, we introduce the concept 'ubiquitous energy'. The main contribution of our paper is to create a discussion framework for the concept and to identify the most relevant technology pathways for the realization of 'ubiquitous energy'. Hence, we first present the background of the concept and discuss matters concerning the 'quality of energy to be present everywhere'. Secondly, we review the latest innovations in energy technology with respect to the energy supply chain and summarize technology pathways to 'ubiquitous energy'. To that end, we describe a systematic framework to classify energy technologies under energy generation, storage, transmission and distribution. We conclude that 'ubiquitous energy' covers various solutions in both scope and degree of integration, but the most prominent trend of development is the use of distributed and shared resources and local energy supply chains. Here, the research should focus on integrated and mobile energy conversion and storage options and wireless power transmission.

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