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Home People Faculty Athanasios Tolis

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Contact: Tel: +3(0) 210 7722385
E-mail:              atol@central.ntua.gr
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Academic Career

2017: SIMOR/NTUA - School of Mechanical Engineering. Industrial Engineering Lab:

Associate Professor (O.R. in energy resource management)

2010: SIMOR/NTUA - School of Mechanical Engineering. Industrial Engineering Lab:

Assistant Professor (O.R. in energy resource management)

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·      (I) Research Activities (NTUA)

       Worked in Several Research Projects since 1994

·      (ΙΙ) Educational Activities – Teaching Courses (NTUA)

- Energy Economics and Management  

- Operational Research II

- Operations Management – Maintenance and Reliability Management

- Supply Chain - Forecasting Models   

- Operational Research Lab (Mechanical Engineering School NTUA) 

- Operational Research Lab (Naval Architecture School NTUA)   

- Environment and Economic Growth (2005)

·      (ΙΙΙ) Technical and Administrative activities (NTUA)

      Network and telematics assistant (2001-2007). Basic Research Committee (2007-2008)

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Education (NTUA: National Technical University of Athens)

·         2001: PhD Thesis: “Reverse Logistics Application in Biomass Energy Recovery” NTUA/SIMOR

·         1993: Diploma Thesis: “Advanced Multi-core Compressor Calculation using an implicit flux solver in the turbo-engine meridional plane”. Laboratory of Thermal Turbo-Machines - School of Mechanical Engineering. NTUA/LTT

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Research Interests

·         Operational Research

- Coding of high complexity constrained problems using co-evolutionary particle swarms

- Optimization (Traditional Methods: SQP-KKT, Simplex etc)

- Optimization of Energy sources in specific energy products (trigeneration, combined heat & power)

- Optimization of National Power generation Mix (Power Sector)

- Optimization of energy investments - impact of supply chain (optimization of routing schedules)

·         Energy Economics – Energy Management

-Reverse Logistics - Recycling

-Fuel-Biofuel supply chains (inventory management – transportation fleet computations)

-Emissions Trading

- Multi-fueled power plants: Optimal Time Scheduling of fuel switching and multi-fuel inventory Management

-Futures contracts, forward options, derivatives of energy products

-Investment analysis in power plants

-Techno-economical feasibility studies in biomass energy recovery

-Costing of energy products. Energy market research

·         Forecasting numerical models (energy demand– endogenous –correlated forecast)

- Box-Jenkins, ARMA –ARIMA - GARCH

- Neural networks in forecasting

- Statistical methods (random walk, Wiener, Ito, Ornstein-Uhlenbeck κλπ)

·          Systems Theory

·         Numerical Statistical Analysis of Demand (Reliability, Maintenance, Replacement)

·         Sustainable Development

- Cost – benefit analysis in sustainable development

- Environmental impact of mega events

·         Computational Fluid Dynamics: 2D Euler, Navier-Stokes flux-models (viscous-inviscid). Implicit-Explicit time marching models.


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Publications (Indicative) (External Citations: 180 {SCOPUS:175 - ISI:120} - SCOPUS/ISI  h-index=5)

Book Chapters

1. Tolis A., Rentizelas A., Aravossis K., Tatsiopoulos I. (2012). Decisions under uncertainty in Municipal Solid Waste cogeneration investments. Green Energy and Technology, 55, pp. 197-218, DOI:  10.1007/978-1-4471-2306-4_8. Springer-Link.

International Scientific Journals

1. Tatsiopoulos I., Tolis A. (2002). Technical and economic evaluation and feasibility study of biomass energy. International Journal of Environmental and Sustainable Development, 1(2), 142-159 [Scopus]

2. Tatsiopoulos I., Tolis A. (2003). Economic aspects of the cotton-stalk biomass logistics and comparison of supply chain methods. Biomass & Bioenergy, 24(3),199-214  [Scopus & ISI]

3. Tziralis G., Tolis A., Tatsiopoulos I., Aravossis K.G. (2006). Economic aspects and the sustainability impact of the Athens 2004 Olympic Games.   WIT Transactions on Ecology and the Environment, 98, 21-33 [Scopus]

4. Rentizelas A., Tolis A., Tatsiopoulos I. (2006). Effect of greenhouse gas emissions trading on investment decisions for biomass-to-energy production.  WIT Transactions on Ecology and the Environment, 98, 129-138 [Scopus]

5.  Tziralis G., Tolis A., Tatsiopoulos I., Aravossis K.G. (2008). Sustainability and the Olympics: The case of Athens 2004. Special Issue "Environmental Economics" of the International Journal of Sustainable Development and Planning, 3(2), 132-146  [Scopus]

6. Rentizelas A., Tatsiopoulos I., Tolis A. (2008). An optimization model for multi-biomass tri-generation energy supply. Biomass & Bioenergy, 33(2), 223-233. [Scopus & ISI]

7. Rentizelas A., Tolis A., Tatsiopoulos I. (2009). Biomass district energy trigeneration systems: emissions reduction and financial impact. Water, Soil and Air Pollution Journal: Focus, 9(1-2), 139-150 [Scopus & ISI]

8. Rentizelas A., Tolis A., Tatsiopoulos I. (2009). Logistics issues of biomass: The storage problem and the multi-biomass supply chain. Renewable and Sustainable Energy Reviews Journal, 13(4), 887-894 [Scopus & ISI]

9. Tolis A., Tsakoumis A., Pazarskis M., Christodoulou P. (2009). Decision Making for Potential Investors on the Power Sector. International Journal of Management Research and Technology, 3(2), 437-443

10. Tolis A., Rentizelas A., Tatsiopoulos I. (2010). Time-dependent opportunities in energy business: a comparative study of locally available renewable and conventional fuels. Renewable and Sustainable Energy Reviews Journal, null14(1), 384-393 [Scopus & ISI]

11. Tolis A., Doukelis A., Tatsiopoulos I. (2010). Stochastic interest rates in the analysis of energy investments: implications on economic performance and sustainability. Applied Energy, 87(8), 2479–2490[Scopus& ISI]

12. Tolis A., Rentizelas A., Aravossis K., Tatsiopoulos I. (2010). Electricity and combined heat and power from municipal solid waste; theoretically optimal investment decision time and emissions trading implications. Waste Management and Research, 28(11), 985-995  [Scopus & ISI]

13. Tolis A., Rentizelas A., Tatsiopoulos I. (2010). Optimization of electricity energy markets and assessment of CO2 trading on their structure: A stochastic analysis of the Greek Power Sector. Renewable and Sustainable Energy Reviews, 14(9), 2529–2546. [Scopus & ISI]

14.  Tolis A., Rentizelas A. (2011). An impact assessment of electricity and emission allowances pricing in optimised expansion planning of power sector portfolios. Applied Energy, 88(11), 3791-3806 [Scopus& ISI]

15. Rentizelas A., Tolis A., Tatsiopoulos I. (2012). Investment Planning in Electricity Production under CO2 Price Uncertainty. International Journal of Production Economics, 140 (2), 622-629 [Scopus & ISI]

16. Zis Τ., Bell M.G.H., Tolis A., Aravossis K. (2013). Economic evaluation of alternative options for municipal solid waste management in remote locations. Waste and Biomass Valorisation, 4(2), 287-296 [Scopus]

17. Varympopiotis A., Tolis A., Rentizelas Α., Tatsiopoulos Ι., Aravossis Κ. (2013). Flexible fuel rotation for the retrofitting of lignite power plants. Fresenius Environmental Bulletin, 22(7A), 2074-2086 [Scopus]

18.  Rentizelas A., Tolis A., Tatsiopoulos I. (2013). Optimisation and investment analysis of two biomass – to - heat supply chain structures. Biosystems Engineering, DOI: 10.1016/j.biosystemseng.2013.07.012 [Scopus & ISI]

19. Rentizelas A., Tolis A., Tatsiopoulos I.  (2013). Combined Municipal Solid Waste and Biomass System Optimization for District Energy Applications. Waste Management, DOI:  10.1016/j.wasman.2013.09.026 [Scopus & ISI]

20. Varympopiotis A., Tolis A., Rentizelas Α. (2014). Fuel switching in power-plants: modelling and impact on the analysis of energy projects. Energy Conversion and Management, 77, 650-667 [Scopus & ISI]

International Conferences (peer reviewed  articles)

1. Tatsiopoulos I., Tolis A., (2001). “Introduction on technical and economical evaluation and feasibility study of biomass energy”, Proceedings of the 8th International Seminar on Life-Cycle Engineering, Varna, Bulgaria.

2. Tolis A., Rentizelas A., Tatsiopoulos I., (2004). “Market Evaluation of Gasifiers in Greece”, 2nd World Conference & Technology Exhibition on Biomass for Energy, Industry and Climate Protection, Rome, Italy.

3. Tolis A., Giannopoulos D., Rentizelas A., Tatsiopoulos I., Funti M., (2004). “Potentials Perspectives and Multi Criteria Assessment Methodologies for exploitation of Agricultural Biomass”, 2nd World Conference & Technology Exhibition on Biomass for Energy, Industry and Climate Protection, Rome, Italy.

4. Rentizelas A., Tolis A., Tatsiopoulos I., (2005). “Bioenergy supply chain optimization using multiple biomass sources”, Proceedings of the 14th European Biomass Conference, Paris.

5. Rentizelas A., Tatsiopoulos I.P., Tolis A. (2005). ‘Multi-biomass Supply Chain and Optimisation’, Proceedings of the World Renewable Energy Congress, Aberdeen, UK, 23-27 May 2005.

6. Rentizelas A., Tolis A., Tatsiopoulos I., (2006). “Effect of greenhouse gas emissions trading on investment decisions for biomass-to-energy production”, First International Conference on Environmental Economics and Investment Assessment, Mykonos, Greece.

7. Tziralis G., Tolis A., Tatsiopoulos I., Aravossis K., (2006). “Economic Aspects and Sustainability Impact of the Athens 2004 Olympic Games”, First International Conference on Environmental Economics and Investment Assessment, Mykonos, Greece.

8. Rentizelas A., Tolis A., Tatsiopoulos I., (2007). “Estimating greenhouse gas emissions reduction and allowances: trading revenue for biomass tri_generation applications”, First Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE 07), Skiathos, Greece.

9. Tolis A., Rentizelas A., Tatsiopoulos I., Avraam K.T., Varotsis N.S., Kapetanakis E.P. (2009). “Impact Assessment of Greenhouse Gas Trading on Electricity Production Industry”, Second International Conference on Environmental Management, Engineering, Planning and Economics, CEMEPE & SECOTOX Conference, Mykonos, Greece.

10. Rentizelas A., Tolis A., Tatsiopoulos I. (2010). Investment Planning in Electricity Production under CO2 Price Uncertainty. Sixteenth International Working Seminar on Production Economics, Innsbruck, Austria, March 1-5, 2010.

11. Tatsiopoulos I., Rentizelas A., Tolis A. (2010). The experience curve effect on renewable energy penetration. The International Conference on Renewable Energies, ICRE 2010 Damascus, Syria, April 5 – 8, 2010.

12. Zis T., Tolis A., Rentizelas A., Tatsiopoulos I., Aravossis K. (2011). Economic evaluation of waste management options for remote areas. Third Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE ‘11), Skiathos, Greece, June 19-24, 2011.

13. Varympopiotis G., Tolis A., Rentizelas A., Tatsiopoulos I., Aravossis K. (2011). Strategic investments for existing power plants. Third Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE ‘11), Skiathos, Greece, June 19-24, 2011.

14. Rentizelas A., Tolis A., Tatsiopoulos I. (2012). Optimizing Waste Management Systems Design for Energy Recovery. Seventeenth International Working Seminar on Production Economics, Innsbruck, Austria, February 20-24, 2012.

15. Zis T., Tolis A., Aravossis K. (2013). An environmental and economic analysis of waste transportation strategies in remote islands. Fourth International Conference on Environmental Management, Engineering, Planning and Economics, CEMEPE & SECOTOX Conference, Mykonos, Greece.

16. Varympopiotis G., Papakonstantinou P., Tolis A., Rentizelas A., Aravossis K. (2013). Economic, financial and technical issues of wind power generators for the transition to a zero carbon economy. Fourth International Conference on Environmental Management, Engineering, Planning and Economics, CEMEPE & SECOTOX Conference, Mykonos, Greece.

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Reviewer in Scientific Journals

·         International Journal of Molecular Sciences [Scopus & ISI]

·         Water, Air, & Soil Pollution: Focus [Scopus]

·         European Transactions on Electrical Power [Scopus & ISI]

·         Water Environment Research [Scopus & ISI]

·         Energy [Scopus & ISI]

·         Energy & Fuels [Scopus & ISI]

·  Journal of Numerical Analysis, Industrial and Applied Mathematics [Scopus]

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