- Zafirakis D., Kavadias K.A., Kaldellis J.K., 2008, "Evaluation of the Wind-CAES energy solution for the Aegean Islands. The case of a Private Wind Park in Crete", presented in the EWEC-2008, Brussels Belgium.
- Kapsali M., Kavadias K., Kaldellis J.K., 2008, "Energy Based Sizing of a Wind-Hydro Solution for Maximum Wind Energy Penetration in Lesbos Island", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Ninou I., Kaldellis J.K., 2008, "Energy Balance Analysis of a Hybrid Photovoltaic Based Solution for Remote Telecommunication Stations", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Tsoutsos Th., Tsouchlaraki An., Tsiropoulos. M., Kaldellis J.K., 2008, "The Aesthetic Integration of Wind Parks in the Environment. Application in a Greek Insular Wind Park", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Alexis G.K, Kaldellis J.K., 2008, "An Energy Analysis of a Solar-driven Ejector Cooling System in the Athens Area", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Papapostolou Chr., Kondili E., Kaldellis J.K., 2008, "Modelling, Optimization and Life Cycle Analysis of Biofuels Supply Chain", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Kavadias K.A., Zafirakis D.P., Rozakeas K., Kaldellis J.K., 2008, "Optimum Sizing of a Hydrogen Production Installation Based on Renewable Energy Surplus", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Fragos P., Paliatsos A.G., Kaldellis J.K., 2008, "Experimental Analysis of the Air Pollution Impact on Photovoltaic Panels' Energy Yield", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- KaldellisJ.K., KondiliE.M., Kavadias K.A., 2008, "Analyzing the Public Opinion towards Wind Energy Applications in Greece", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Kondili E., Kaldellis J.K., 2008, "Wind Energy Based Desalination Processes and Plants", Xth World Renewable Energy Congress, July 2008, Glasgow-Scotland, UK.
- Papakonstandis Sp., Zafiris D., Santis K., Kavadias K., Kaldellis J.K., 2008, "Energy Analysis of a Hydro-PV-Diesel Hybrid System in North Greece", SynEnergy Forum (S.E.F.) International Scientific Conference, May 2008, Spetses, Greece.
- Spyropoulos G.C., Xidis M., Chalvatzis K.J., Kaldellis J.K., 2008, "Experimental Analysis of a Photovoltaic Stand-Alone System in TEI of Piraeus", SynEnergy Forum (S.E.F.) International Scientific Conference, May 2008, Spetses, Greece.
- Skarlis Str., Kondili E., Kaldellis J.K., 2008, "Design and Feasibility Analysis of a new Biodiesel Plant in Greece", SynEnergy Forum (S.E.F.) International Scientific Conference, May 2008, Spetses, Greece.
- Papapostolou Ch., Kondili E., Kaldellis J.K., 2008, "Life Cycle Analysis and Environmental Impacts of Renewable Fuels", SynEnergy Forum (S.E.F.) International Scientific Conference, May 2008, Spetses, Greece.
- Koutsogianni E., Skittides Ph., Kondili E., Kaldellis J.K., 2008, "Educational Opportunities and Business Prospects for the Renewable Energy Sector in Greece", SynEnergy Forum (S.E.F.) International Scientific Conference, May 2008, Spetses, Greece.
- Zafirakis D., Kavadias K.A., Kaldellis J.K., 2008, "Optimum Energy Storage Sizing for the Application of a Wind-CAES Configuration in Autonomous Island Networks", MedPower08 International Conference, November 2008, Thessalonica, Greece.
- Tiligadas D., Kavadias K.A., Kaldellis J.K., 2008, "Maximum Wind Energy Contribution in Autonomous Island Electrical Networks Using Probabilistic Analysis", MedPower08 International Conference, November 2008, Thessalonica, Greece.
- Meidanis Ev., Vokas G.A., Kaldellis J.K., 2008, "Theoretical Simulation and Experimental Analysis of a PV-Based Water Pumping System", MedPower08 International Conference, November 2008, Thessalonica, Greece.
- Kalafatis El., Skittides Ph., Kaldellis J.K., 2008, "Investigating the Relation between the Reliability and the Technical Availability of Wind Energy Applications", MedPower08 International Conference, November 2008, Thessalonica, Greece.
- Καλδέλλης Ι.Κ., Καββαδίας Κ.Α., ΚονδύληΑιμ., 2008, "Μέθοδος Άριστης Διαστασιολόγησης Ενεργειακών Συστημάτων Ήπιων Μορφών Ενέργειας για Απομονωμένους Καταναλωτές", 20ο Εθνικό Συνέδριο της Ελληνικής Εταιρείας Επιχειρησιακών Ερευνών, Ιούνιος-2008, Σπέτσες-Ελλάς.
- Καλδέλλης Ι.Κ., ΚονδύληΑιμ., 2008, "Η Συμβολή της Έρευνας στην Καινοτομία και την Ανάπτυξη της Τεχνολογίας. Η Περίπτωση της Ελλάδος", 20ο Εθνικό Συνέδριο της Ελληνικής Εταιρείας Επιχειρησιακών Ερευνών, Ιούνιος-2008, Σπέτσες-Ελλάς.
- Papapostolou Chr., KondiliE., KaldellisJ.K., 2008, "Operations Research Methods and Tools for the Biofuels Supply Chain Optimisation", 20ο Εθνικό Συνέδριο της Ελληνικής Εταιρείας Επιχειρησιακών Ερευνών, Ιούνιος-2008, Σπέτσες-Ελλάς.
- KondiliE., KaldellisJ.K., 2008, "OperationsResearchMethodsinWaterSystemsOptimisation", 20οΕθνικόΣυνέδριοτηςΕλληνικήςΕταιρείαςΕπιχειρησιακώνΕρευνών, Ιούνιος-2008, Σπέτσες-Ελλάς.