The course focuses on the modeling of the dynamics of energy systems and markets at different spatial scales and on medium-long terms under a complex set of constraints. This modeling is crucial today for the planning of sustainable energy strategies at regional, national and international level. The objective of the course is to provide the students the capability to discriminate between different models and scenarios for energy planning, as well as to develop their own simplified models, and to analyze and compare the results of complex energy models and different development scenarios. The course starts presenting the context of the Paris Agreement, the needs for energy modeling and the different classifications of the existing models. The various possible approaches to face the complex challenge of developing a model connecting the input to the output are then compared: top-down vs. bottom-up ("engineering-economic" models), partial vs. global equilibrium models; particular attention is devoted to the data-driven modeling, bottom-up, partial equilibrium MARKAL - TIMES family of models. The analysis of the micro-scale models aims at showing how different deterministic or statistical, machine learning and stochastic models can be built to investigate the energy demand at domestic level. Then the meso-scale models are presented, with particular reference to Multi-Criteria Decision Algorithms and data classification learning processes. Finally, the macro-scale models are discussed. The different methodologies and approaches are presented: assumptions in input, interconnections between energy demand, energy supply and technologies, mathematical methods adopted (e.g. linear and non-linear programming), as well as an assessment of the propagation of uncertainties from input to output. The attention is focused in particular on the World Energy Model (WEM) by the International Energy Agency (IEA) and the Global Multi-regional MARKAL (GMM) model by the World Energy Council (WEC). The assumptions of the two models, resulting in so-called scenarios, are compared in detail, as well as their yearly published results, considering energy balances at regional level and also specific energy markets (e.g, the oil market). In order to get familiar with the most important indicators, the students will be requested to post-process some of the data tables contained in IEA and WEC reports. In parallel with these theoretical developments, the students have the opportunity to develop their own macro-scale model with a hands-on approach and to apply it to the analysis of a case study (a country or a region), divided in small groups. The course is inter-disciplinary in nature, being culturally located at the crossroads between economics and engineering.

After this course, the students will understand the rationale behind energy models at local/regional/world level, they will know the structure of the different models existing in the literature and will be able to distinguish and classify them. They will know the input needed for the different energy models (e.g. the MARKAL – TIMES and the WEM on the macro-scale), with special attention to the main scenarios considered in the IEA and WEC reports, and they will be able to properly comment and compare the relative outputs, and in particular the outlook of the main energy markets for the next few decades. The student will also know the main algorithms adopted for the solution of the constrained optimization problems hidden in the models, and be able to apply them in order to develop the model of a regional energy balance in small teams. Thus they will empower their capabilities to work in a group exchanging ideas with their peers, while thanks to the final presentation to the whole classroom they will improve their communication skills.

A background on the fundamentals of all major energy technologies (oil, coal, gas, renewables, nuclear, etc.) is taken for granted.

1. Introduction and description of the course/content; the Paris agreement; taxonomy of energy models (15 h) 2. Micro-scale models (6 h ) - Deterministic approach –Data driven approach - Probabilistic approach 3. Meso-scale models (6 h + 3 h in the lab) - Community Energy Planning - Components of urban energy systems:drivers and constraints - Reference Energy System at urban level - Accounting simulation/optimization models for the energy modeling at the meso-scale - MCDA methods for decision making in the energy field -– classification models 4. Macro-scale models (15 h + 12 h in the lab): - History and classification - Reference Energy Systems, Macro-economics, Modeling techniques - The IEA World Energy Outlook: inputs, assumptions, scenarios and results - The WEC World Energy Scenarios: inputs, assumptions, scenarios and results - Comparison of IEA and WEC outcomes and discussion 5. Examples of regional energy outlooks, also based on students presentations (3 h)

The course will address the theoretical part in formal lectures. Several hours of computational lab are also foreseen, for a subset of which the students will individually work on PCs, developing their own model to address a case study assigned by the teacher.

Selected up-to-date papers published in International Journals on the topic subject of the course. In addition: - World Energy Outlook from 2012 on, by IEA - World Energy scenarios from 2015 on, WEC - L. Schrattenholzer, “THEORY AND PRACTICES FOR ENERGY EDUCATION, TRAINING, REGULATION AND STANDARDS – Energy Planning Methodologies and Tools”, Encyclopedia of Life Support Systems (EOLSS) - R. Loulou, G. Goldstein, K. Noble, Documentation for the MARKAL family of models, Energy Technology Systems Analysis Programme 2004. - R. Loulou et al, Documentation for the TIMES model – PART 1 - Energy Technology Systems Analysis Programme 2005. - World Energy Model Documentation – 2013 Version., OCSE/IEA 2013 - World Energy Model Methodology and Assumptions, OCSE/IEA 2011

Dispense;

Modalità di esame: Prova orale obbligatoria; Elaborato progettuale in gruppo;

Exam: Compulsory oral exam; Group project;

... The final grade is obtained combining two different assessments: 1. Written exam (about half of the final grade), including 3-4 questions on different theoretical topics addressed during the lectures. 2. Preparation of a short report and a poster presentation to all other students of the course on the analysis of a regional energy balance, to be submitted about 2 weeks before the end of the course (about half of the final grade).

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.