City-district energy system solutions in the shape of energy communities are promoted for increased local self-sufficiency and self-consumption, for example by the EU through the Clean Energy for all Europeans Package. However, there is currently a lack of methods for evaluating the matching of district-level energy supply and demand that takes the energy quality (i.e., the exergy) into account. Such methods are needed to identify and avoid unnecessary energy quality losses in local system solutions in order to increase overall resource utilization efficiency. There is a risk that energy systems adapted to city-district level will lead to a one-sided focus on electricity in general, and PV-production in particular, due to this technology’s relative non-dependence on scale for efficiency. This, in turn, risks bringing about electrification that displaces both energy efficiency measures and efficient use of low-value energy resources, such as waste heat or waste-based district heating, and thus reduces the overall resource efficiency. It is in this context that this project fulfils its main purpose. In the project, an analytical method is designed and applied that enables adequate evaluation of resource utilization, partly by defining a measure of exergy matching that enables adequate analyses of integrating thermal systems with electrical systems in residential areas, neighbourhoods or individual buildings. Results are presented for self-sufficiency and self-consumption of locally produced solar electricity, together with exergy efficiency for a residential area with different types of local energy system solutions.