**1. Introduction**

Efficient energy consumption has now become one of the most important points on which society must raise awareness and work on it, because it is today, more than ever, when natural resources are scarcer and scientists are showing more evidence of climate change. Energy consumption is one of the main sources of environmental impact at the University, and also represents a significant economic expense. Likewise, from the environmental point of view, it is worth noting that through the energy savings, we will be contributing to a good use of energy and, in turn, we will be providing solutions that minimize the impact or energy footprint on society. In this sense, a lower use of resources and the promotion of renewable energies will result in an important contribution to reduce the evolution towards a negative climate change.

This Special Issue aims to advance the contribution of energy saving and the use of renewable energies in order to achieve more sustainable universities. This Special Issue seeks contributions spanning a broad range of topics related but not limited to:


#### **2. Publication Statistics**

The publication statistics of the call of papers for this Special Issue, regarding the articles published or rejected with respect to the total number of articles submitted, were:


The regional distribution of authors by countries for the published articles is presented in Table 1, in which it is possible to observe 24 authors from three countries. Note that it is usual for an item to be signed by more than one author and for authors to collaborate with others from di fferent countries.



#### **3. First A** ffi**liation and Country of the Special Issue Authors**

Table 2 shows the a ffiliations of the authors who have participated in this Special Issue.


**Table 2.** Authors' a ffiliations of this Special Issue.

#### **4. Topics of Environmental Energy Sustainability at Universities**

The research carried out by the di fferent authors is classified according to the topics of the Special Issue in Table 3. It was noted that one "Environmental Energy Sustainability at Universities" topic dominated the rest: "Sustainability".


**Author Contributions:** The authors all made equal contributions to this article. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
