Guest Editors
Prof. Carlos Álvarez Macías
Email: calvarezm@correo.itlalaguna.edu.mx
Affiliation: División de Estudios de Posgrado e Investigación, Instituto Tecnológico de La Laguna, Tecnológico Nacional de México, Torreón, México
Homepage:
Research Interests: energy engineering, photovoltaic technologies

Dr. Laura Andrea Pérez-García
Email: laperezg@lalaguna.tecnm.mx
Affiliation: Departamento de Eléctrica-Electrónica y Energías Renovables, Instituto Tecnológico de La Laguna, Tecnológico Nacional de México, Torreón, México
Homepage:
Research Interests: environmental biotechnology, applied microbiology, soil and water microbiology,
plant–microbe interactions (PGPR), salinity stress in crops, biorremediation of degraded soils, agrovoltaic systems, bioenergetic and renewable energy systems, sustainability and circular economy

Prof. Lizbeth Salgado Conrado
Email: lizbeth_salgado@uadec.edu.mx
Affiliation: Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Coahuila, Torreón, México
Homepage:
Research Interests: solar thermal concentrators for domestic applications, electromobility, photovoltaic energy systems

Dr. Guillermo Barrios del Valle
Email: gbv@ier.unam.mx
Affiliation: Energía en Edificaciones, Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, México
Homepage:
Research Interests: bioclimatic design, whole building simulations, building instrumentation, thermal comfort, daylighting, data science

Summary
The development of next-generation energy systems has become a critical research priority amid rising energy demand, environmental constraints, and the urgent need for sustainable, efficient solutions. Recent advances in bioenergy, bioelectrochemical systems, environmental biotechnology, mechanical engineering, building energy science, and photovoltaic technologies have enabled the emergence of integrated and hybrid energy systems that improve energy efficiency, resource utilization, and environmental performance. This interdisciplinary research area plays a key role in addressing global challenges related to energy security, decarbonization, and sustainable development.
The aim of this Special Issue is to highlight recent scientific and technological advances in energy engineering through the convergence of bioelectrochemical systems, bioenergy technologies, mechanical engineering approaches, building energy science, and photovoltaic systems. The scope of the Special Issue covers system design, modeling, optimization, performance evaluation, and real-world applications of integrated energy systems. Sustainable built environments and green buildings are considered as relevant application and validation contexts for these technologies.
Suggested themes for this Special Issue include, but are not limited to:
· Bioelectrochemical systems for energy generation and recovery
· Integration of photovoltaic systems with bioenergy technologies
· Mechanical and thermal optimization of hybrid energy systems
· Environmental biotechnology for sustainable energy applications
· Modeling and simulation of integrated energy systems
· Energy performance assessments of buildings and built environments
· Techno-economic and life cycle assessments of advanced energy technologies
Keywords
bioenergy, bioelectrochemical systems, environmental biotechnology, photovoltaic systems, mechanical engineering, hybrid energy systems